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BATCH - Supplemental - 1200 Airport Drive (4)
Date Received By Date Application Completed and Received By By CITY OF SOUTH BURLINGTON APPLICATION FOR SITE PLAN REVIE44 1) NAME, ADDRESS, AND PHONE NUMBER OF: (a) Owner of Record A.N.A. Ltd. dba Air North 658-2200 (b) Applicant J G Architects, Inc. 516 Shelburne Road, So. Burlington, Vermont (c) Contact Person Julian Goodrich Tel: 864-7676 2) PROJECT STREET ADDRESS: Burlington International Airport 3) PROPOSED USE(S): Hangar for maintenance and storage of aircraft 4) SIZE OF PROJECT (i.e., # of units, floor area, etc.) 33600 SF 5) NUMBER OF EMPLOYEES (full & part time) 12 full-time; 8 part-time 2nd shift 6) COST ESTIMATES: (a) Buildings + $750,000 �,`j :ntltlo-A (b) Landscaping $ 13,600 (c) All Other Site Improvements (i.e., curb work) 7) ESTIMATED PROJECT C(vIPLETION DATE 1 December 1984 + $20t000 8) ESTIMATED AVERAGE DAILY TRAFFIC (in & out) minimal 5 to 6 per day 9) PEAK HOUR(S) OF OPERATION 24 hrs per day - peak 9pm - 7am 10) PEAK DAYS OF OPERATION Monday thru Sunday _ DATE JGNATURE OF APPLICANT n W. Goodrich 1' ( 1 G- -t3 c- r - .. (5 T-A --^'�s A C.'t..j ) -^✓ -i. � is �"� ai... / As%} "�+�"'.s'�g� 04�4�"�' •'� �'�`' 4, G'f `"""� 2. PLANNING COMMISSION AUGUST 28, 1984 Consider revised site plan and landscaping plan'of Air North for construction of a 33.600 so. ft. maintenance hangar located at Burlington International Airport Ms. Bechtel said the plan had a new parking lot layout and she said it should be considered a revised plan. The lot location has been changed. Mr. Goodrich said there would be a continuous row of pine trees along the bank edge. These will be white pines, and 100 will be 3-4' tall, 50 will be 5-6' tall, and 56 will be 7' tall. There will also be some Norway Maples planted on the site. Mr. Belter asked if cars would continue to park on the site of the existing parking area, once it is removed and was told they would not. Ms. Bechtel said she had talked to the City Attorney and he had told her that the Commission could not stipulate when Air North could operate because of noise. Since that is not part of site -plan review, such a stipulation would be illegal. Mr. Poger noted that there was a ban on run -ups between 11 pm and 6 am, but Ms. Bechtel did not know where that ban came from. Mr. Jacob felt it had been a voluntary move on the part of the airport. Mr. Poger noted that the Commission could apply the criterion of the he&th, safety and welfare of the neighborhood, regarding noise between those hours. Mr. Goodrich said he expected to have a need for a run-up about once a month during those hours, but he noted that Air North could come back and talk to the Commission about it if such a stipulation were imposed. Mr. Dooley moved that the South Burlington Planning Commission approve the revised site plan application of Air North, Mr. Julian Goodrich, agent, for the construction of a 35,000 sq. ft. maintenance hangar located at the Burlington International Airport as depicted on a set of four plans entitled "Air North. Hangar at Burlington International Airport, Vermont", prepared by J.G. Architects, Inc., and Pizzagalli Construction Company dated August 21, 1984 with the following stipulations: 1. That the applicant obtain Zoning Board approval prior to permit if any excavation material will be disposed of off site. 2. That the applicant supply percolation tests for on -site sewage disposal to the City Engineer for his approval prior to permit._ 3. That a $1500 bond for the fire hydrant and a $13,500 bond for land- scaping be posted prior to permit. 4. That the height shall not exceed 44 feet. 5. That.a separator be provided to _separate out pet role um wastes from waste waters before they go to the dry wells. A 6. That the building will hook up to the City sewer at the applicants expense when the City sewer line reaches the property line and when capacity is available. 7. There shall be no engine run -ups between the hours of 11 �pm to 6 am. 8. That all prior site plan approvals are null and void. 9. That this approval expires in 6 months_ Mrs. Maher seconded the motion and all voted for it. Ms. Bechtel said the applicant would like signatures on the form V VIDA funding. 7rS�n`1 0 i PLANNING CUMM Lio"IUN AUGUST 14, 1984 S. 'Phis approval expires in b months. Mr. Jacob seconded the motion.. Mr. Poger said he was still uncomfortable with the lack of specificity in the 'Zoning Board's motion and Mr. burgess agreed. The motion carried with Mr. Poger voting no. Consider Site Plan application of Paul Liberty and Isadore Myers for the use of a barn for antique stiles located at 1001 Dorset St. Ms. Bechtel said the application had ueen withdrawn, after denial last night by the Zoning Hoard. Consider Site i'lan application of Chitteriden Trust Bank -for the installation of a 24U sq. ft. (approximate) addition for an Automatic Teller Machine located at the Dorset street branch Mr. Bernard Denton said there was an ATM now at the site and they want to add another, and build an enclosure to protect people using the machines. The sidewalk will have to be moved out about 10' and about 3 shrubs on the side of the building will be taken out. Mr. Denton said the railroad ties around the apple trees would not be moved when the sidewalk is moved out. Mrs. Maher was concerned that if the ties were taken out to make room for the sidewalk, the trees would die and Mr. Denton said he did not want to lose the trees either. Mr. Jacob suggested a small paved area between the Mall and the bank, for easier pedestrian access. Mr. Denton was asked if he felt adding another ATM would increase traffic at the bank and he felt it would not, but that it would relieve a lot of congestion. Mr. Dooley moved that the South Burlington Planning_Commission ap-)rove the site plan application of the Chittenden Trust_Company, on Dorset Street, for _ the construction of a 24' x 10' automatic teller machine area as depicted on a plan entitled "Chittenden Trust Company, Dorset Street ATM, South Burlington, Vermont, Site Plan", prepared by Freeman, Drench_, Freeman Architects, dated July_24, 1984� with the following stipulations: 1. Credit of $300 be granted for existing trees. 2. That the applicant will post a bond in an amount sufficient to cover the replacement costs of the two apple trees �as determined by the City Planner in the front of the building should they be damaged as a result of the addition. 3. That this approval expires in 6 months. Air. burgess seconued the motion anted --in fHvor. Consider site plan application of Air North for the construction of �3,6U0 sq. ft. maintenance hangar located on Burlington International Airport property site of previously approved Air Vermont hangar ir. Julian Goodrich represented Air ;forth. He snid access to the proposed building would be from Williston aoau. water is available and power will be brought in. Ga., will oe used for neatiug. Maintenance work will be lone in the building; and there will also be areas for offices, showers, lockers, storltFe, etc. '+fork will oe done �4 hrs. per day '7 days per week, with 10-1,' employees per shift, for a total of about 3(; emrloyees. 2u parking splices are shown, snd there is also room on the ra:ic itself. 4. AUGUST 14, 1y84 ?lr, Goodrich said the building was 44' tall, but would be built into a II The entire thirig would be depressed auout 15-20' below the main runway area. fie s:-tid that when finished, the building would be under the 35' allowed by the city, because of the excavation they would ue doing on the site. Mr. Dooley asked if the views of any landowners would be blocked by this and was told they would not - the area nearby is heavily wooded. Mr. Goodrich said they would put in a third hydrant, as requested by the r'irc Chief, and that the building would be sirinkled. A fire hose will also be put in the building. Drainage in the building will ;,e collected and put into two drywells. There will be a septic system for sewage. Oil products from the maintenance will oe collected and sold. Most maintenance will thke place at night, so the planes can fly during the day. Mr. roger was concerried about increased noise. Mr. Guosrich skid that about .5 times per montn, they would have to do engine run -ups, which are noisy. Mr. Poger noted that there were residences in the area and Mr. Burgess noted that noisy operations could be limited to certain hours of the day, or that sound dampers could be used. Mr. Goodrich said the airline needed the building, and that if they found they could not operate under the stipulations imposed by the Commission, they would have to come back and ask for a variance. lvir. Burgess wondered if the 'Zoning Hoard could waive Co=ais•sion stipulations and Mr. Poger said the City Attorney might have to decide that. Mr. Goodrich was asked about increased traffic and he felt this would only affect the people working in the hangars and those people delivering parts. Yr. Krassner had four concerns. The first was noise and the second was Possibly allowing oil products to get into the ground from washing the planes and doing maintenance. Mr. Poger felt a filter should be required to take care of that. 'rir. Krassner also mentioned the on -site sewage plan and X.r. Burgess asked ',Is. uechtel to check, but he thought that if one was adjacent to a sewer line one nad to connect to it, if one were within a certain distance. He was not sure that applied here. Mr. 'roger said the on -site system could bo in and if capacity became available -later and the building was close enough to the r line, they would be required to hook on. Mr. Krassner was also interested in the tax question between Burlington and :south Burlington regarding the airport, but <:r. Poger said this was not the board to deal with that. ,.rs. ::aher was not sure whether the landscaping plan was adequate, especially with regard to noise abatement. Mr. Goodrich said they could resub_it the iandsca;ing, but they needed to get started with the plan. Mr. i3urgess did not feel the plan met the thira requirement .or waiving in the ordinance, but i+;r. Poger noted that the building- was n ati 2•rom others and in a depression in the ground, so he felt comfortaoie with api)rovai. Mr. Dooley moved that the :;outh burlin ton Planning Commission au�ruve the site clan application of Air ;worth., Mr. Juli�►n..i:Q.Q.CLrr�ht•1 or the cons•t-ruction of a S3 boo sq.. ft._maintenance _hangar located at the iurline-t n 1 - tl al_Air s2TS_.�_�e?i�ted -Qn a_.121 entitled "-Air _North Hangar, BurlLn- to International Airport" as �;reFared by J.G. Architects Inc., and i'izza alli Construction Comuan,, dated July 23, 1984 with the following stipulations: - _ -- l. That -a landscape plan showing ;stabilization of the embankment to the rear of' the-buildin and ylantilies f_or noise abatement ue submitted and ap_urovea by the tlannin Commission riot to issuance of 3 buiidin_E, permit. 2. 'hat the auLlicarit specif',� the mat},uci_uf dish;o�i«�o1 excLvhtiun 8tarial and if the material will be disposed o;;' sita that ------ ___ .._.-��-- - - -- ---------- `.._t - h fi t ._on i nG oa rd a:. roval be out.ained prior to permit. i l / � l Pi,ANN'ING CUMMI��ION AUGUL;' 14, lt464 5• Tht� ._�1an b.e amended to show site drainage _priorto hermit. 4. 1'iiat the--�tTri.ican_t_ sum _2ercolation tests for on site sewage die �osal_to the Cites+ ;;nineer for his approval._ 5. That there shall be no engine run-ins during the hours of 11:00 pm _. S�2 :S2Q3m, U. That a $1500 bond for the fire hydrant and_a bond of' il��lUU for lanpscaLing_be.sted_pr.ior to.-- kermit, 7. That the height shall not exceed 44 feet. 8. That a separator be provided to.. separate .out petrpleurn wastes f'rQrn - the waste waters .._bef_ore _they__gQ pu_t to dry wells. 9. That this approval expires in 6 months,_ Mr. Jacob seconded the motion. Mr. Jacob felt that when the City Manager/Engineer looked at changes to a plan, he should initial and date the changes. Mr. Goodrich noted that some stipulations might hold up the plan and that Air North needed to start excavation this week to meet its schedule. After some discussion, the Commission said that if it was legal to start excavation now, they had no objection, but no building could be started yet. Consider site plan application for Burlington Indoor Tennis Center, Inc for construction of a nursery and a 20,000 sq. ft. office building and sports science facility located on Twin Uaks Terrace Ms. Bechtel said the Zoning Board last night had given approval for the nursery, but the rest of the application had been withdrawn. The applicant is now only requesting approval for the nursery. Mr. Poger felt that if plans which showed only the nursery addition were not available, the Commission could not review the plan. He felt th*e plan should come back in two weeks with only the nursery addition shown, and the applicant, Mr. Peter Bergh, agrees to withdraw the plan and come back for the next meeting. Informally consider rezoning request of Carl H. Lisman for Marcel located at the corner of ,�iilliston Road and Mills Avenue and the next westerly lot Mr. Lisman said that Arline Barovick Peterson had obtained an option on the Garvey property on Williston Road with an eye toward operating a real estate office from the home. She was told that that use was riot a:,propriite due to the zoning of the land, and that the owner of the lot next to the Garvey property had had trouble developing it also. i?r. Lisman said he wa3 aware that there were residential areas behind this lot and across the street, out that if the property could be rezoned to Cl, many of the ra uses to.nle might find objectionable could be prohibited by covenant and tie referred to his 1/12/64 letter to the Commission. Mrs. Maher asked if' con:�olidation of t�:e two lots discu3sed was oeinf; proposed and was told it was not. Uhe pointed r,ut that if' the zoning, on both lots were chani ed, that would leave a s;nall non-corffor•mi:t,: lot on the corner. Mr. Lismt,n did trot feel residential wa: a practical u:!e for the corner lot. i�ir. Pol er was concerned that rezonin,- one or t,,•o iot:-, would ienve the Commission open to a charge of Spot zoning, iie al; - felt chat State of Verniont •�+ 6. Department of Fish and Game Department of Forests, Parks, and Recreation Department of Water Resources & Environmental Engineering Natural Resources Conservation Council Mr. Michael J. Bruz, P.E. Fitzpatrick - Llewellyn Inc. 15 Brickyard Road Essex Junction, VT 05452 AGENCY OF ENVIRON111F.NTAL CONSERVATION January 14, 1985 Departntent of rater Resources and Environmental Engineering Essex Junction Regional Office 111 Rest Street Essex Junction, Vermont 05452 RE: 4CO034-3 Air North, ANA Ltd., Airplane Maintenance Building, Burlington International Airport, South Burlington Dear Mr. Bruz: Thank you for your letter dated December 3, 1984, regarding the wastewater disposal system construction for the above project. This letter satisfies Condition No. 6 of the Certification of Compliance. Please note that interior plumbing and ventilation plans have not been approved at this time and construction is still limited to site and foundation work only. Our letter dated November 20, 1984, to Jennison Engineering contained 2 items to be resolved before approval can be granted. Also, we are awaiting written approval of the exterior water line extension by the Department of Health. This approval is needed prior to use of this facility. Please call if you have any questions. Very truly yours, Mary Clar�� k ✓ Assistant Regional Engineer CC: Air North, ANA Ltd. City of Burlington City of South Burlington Burlington International Airport Jennison Engineering Katherine Vose State of Vermont LAND USE RE AMENDMENT CASE No. 4CO034-3 APPLICANT Ana Ltd. (Air North) ADDRESS c/o Walter Houghton, Director of Burlington International Airport Airport Parkway South Burlington, Vermont 05401 AND The City of Burlington Burlington City Hall Burlington, Vermont 05401 y -A ec ci\_os,� �- RECErV F n C ' 1984 IT MANAGER'S OFFICE CITY So. E;"LINGToI , LAWS/REGULATIONS INVOLVED Aviation 10 V.S.A., Chapter 151 (Act 250) and Vermont State Environmental Protection Rules District Environmental Commission #4 hereby issues a Land Use Permit #4CO034-3 pursuant to the authority vested in it in 10 V.S.A., Chapter 151. This permit amendment applies to the lands identified in Book 181, Pages 107-129 of the Land Records of the City of South Burlington, Vermont, as the subject of a deed to the City of Burlington a portion of lands to be leased to Ana Ltd., the "permittees" as grantees. This permit specifically authorizes the permittees to construct a 33,000 square foot airplane maintenance building with associated parking, on -site subsurface disposal and municipal water. The building is to be located within the existing Burlington International Airport and is located off of Williston Road in South Burlington, Vermont. The permittees, their assigns and successors in interest, are obligated by this permit to complete and maintain the project only as approved by the District Commission in accordance with the following conditions: 1. The project shall be completed as set forth in accordance with the plans and exhibits stamped "Approved" and on file with the District Environmental Commission, and in accordance with the conditions of this permit. No changes shall be made in the project without the written approval of the District Environmental Commission. 2. By acceptance of the conditions of this permit without appeal, the permittees confirm and agree for themselves and all assigns and successors in interest that the conditions of this permit shall run with the land and the land uses herein permitted, and will be binding upon and enforceable against the permittees and all assigns and successors in interest. #4C0034-3 Land Use Permit Page 2 3. The District Environmental Commission maintains continuing jurisdiction during the lifetime of the permit and may periodically require that the permit holder file an affidavit certifying that the project is being completed in accordance with the terms of the permit. 4. This permit hereby incorporates Certification of Compliance #4C0034-3 issued by the Regional Engineer, Division of Protection, Agency of Environmental Conservation in compliance with Vermont Environmental Protection Rules. Conditions #(1), (2) , (4) and (7) of that Certification are as follows: (1) The project must be completed as shown on the plans by Fitzpatrick - Llewellyn, Inc., Drawing No. D-1129 Project 84113, Sheet 1, "Air North Wastewater Disposal System" dated November 1984 and which have been stamped APPROVED by the Division of Protection. No alteration of these plans shall be allowed except where written application has been made to the Agency of Environmental Conservation and approval obtained. (2) A copy of the approved plans and the Land Use Permit shall remain on the project during all phases of construction and, upon request, shall be made available for inspection by State or Local personnel. (4) The wastewater disposal system shall be constructed as shown on the APPROVED plan and shall be operated at all times in a manner that will not permit discharge of effluent onto the surface of the ground or into the waters of the State. No construction (buildings, roads, water lines, etc.) that might interfere with the installation or operation of the sewage disposal field or its replacement is permitted. All isolation distances as set forth in Environmental Protection Rules, Chapter 8, Section 8-08, and Chapter 7, Appendix 7-D, shall be adhered to. (7) The project is approved for site and foundation work and construction of the subsurface wastewater disposal system only. Final approval of the interior plumbing plans shall be submitted and approved prior to building construction above the foundation. 5. The permittees and all assigns and successors in interest shall install and maintain water -conserving plumbing fixtures including but not limited to low -flush toilets and aerator -type or flow restricted faucets. All leases or deeds for this building shall require maintainance of the same. #4C0034-3 Land Use Permit Page 3 6. The heated structures approved herein shall be constructed so as to comply with ASHRAE 90-80 standards. 7. The permittees shall comply with Exhibit #4 for erosion control. The permittees shall prevent the transport of any sediment beyond that area necessary for the construction approved herein. From October 1 to April 15 of any calendar year, all non - vegetated disturbed areas of the construction site shall be mulched until final vegetative cover is established. All erosion control devices shall be periodically cleaned, replaced, and maintained until vegetation is permanently established on all slopes and disturbed areas. The Commission reserves the right to schedule hearings and site inspections to review erosion control, and to evaluate and impose additional conditions with respect to erosion control, as they deem necessary. 8. The permittees shall apply to the District Commission for approval for any change in the use of the building which would cause noxious or unhealthy emissions into the air or injection of toxic wastes into the soils. 9. Any outdoor lighting shall be installed or shielded in such a manner as to conceal light sources and reflector surfaces from view substantially beyond the perimeter of the area to be illuminated. 10. Prior to any site work, the permittees shall install and maintain fencing along the tree line to be retained as depicted on Exhibit V . 11. The permittees shall dispose of all waste oils and any regulated materials in accordance with all State regulations. 12. Removal of topsoil from the site is prohibited. 13. Prior to the removal of any excess earth material from the project site the permittees shall notify the Commission of the deposition area. The Commission reserves the right to schedule hearings and site inspections to evaluate and to impose additional conditions with respect to the possible impacts of the deposition of earthen materials. 14. All construction on this project must be completed by September 30, 1985. #4C0034-3 Land Use Permit Page 4 15. This permit shall expire on September 30, 2014 unless extended by the District Commission. 16. Notwithstanding, this permit shall expire one year from date of issuance if the permittees have not demonstrated an intention to proceed with the project. 17. Failure to comply with any of the above conditions may be grounds for permit revocation pursuant to 10 V.S.A., Sec. 6090(b). Dated at Essex Junction, Vermont, this 28th day of November, 1984. BY Richard H. Wadhams, Vice -Chairman District Environmental Commission #4 Other members participating in this decision: Helen B. Lawrence Lincoln C. Brownell Katherine M. Vose Environmental Board District Coordinator for the District #4 Commission ee ZXHIBIT LIST FOR .A_nPLICATION }-4 00034 --- A = Applicant T = Town TPC = Town Planning Commission RPC = Regional Planning Commission AEC = Agency of Environmental Conservation C = District Environmental Commission NATURE OF EXHIBIT DOCUMENT DATE 9/6/84 A amendment application form Inotice of service 8/14/84 " notice, commencement of construction 8/14/84 " letter - re: criteria by B. Rabinowitz, J. G. Architects, Inc. 8/24/84 W n letter - re: request for site work and foundation construction approval by B. Rabinowitz, J. G. Architects, Inc. 8/13/84 plan, rendering _ plans, location and site plan, S.1, S.2, A.2, A.3, A.4 and ME.1 by J. G. Architects and Pizzagalli Construction Co. Entry of Appearance and Pre -Hearing Comments, by D. Cole -Levesque, AEC letter - re: fire service, by J. Goddette, South Burlington Fire Chief various 9/26/84 8/31/84 letter - re: local planning approval, by J. Bechtel, South Burlington City Planner 8/31/84 minutes - South Burlington Planning Commission meeting, 8/28/84 letter - re: airport police and fire service, by W. Houghton, Director of Aviation, Burlington International Airport 10/17/84 State of Vermont Z STATE OF VERMONT AGENCY OF ENVIRONMENTAL CONSERVATION CERTIFICATION OF COMPLIANCE RE: 4CO034-3 Air North, ANA Ltd. C/O Walter Houghton Director of Aviation Burlington International Airport Airport Parkway South Burlington, VT 05401 Certified to Comply with Environmental Protection Rules: Chapter 4 - Public Buildings Chapter 7 - Sewage Disposal Exterior Sewage Construction Only This project, consisting of approval for exterior sewer construction and site and foundation approval for a 33,000 square foot airplane maintanance building with on -site subsurface sewage disposal, located at the southern end of the Burlington International Airport off Williston Road in the City of South Burlington, Vermont is hereby certified to satisfy the requirements of the regulations named above, subject to the following conditions: (1) The project must be completed as shown on the plans by Fitzpatrick - Llewellyn Inc., Drawing No. D-1129 Project 84113, Sheet 1, "Air NOrth Wastewater Disposal System" dated November 1984 and which have been stamped APPROVED by the Division of Protection. No alteration of these plans shall be allowed except where written application has been made to the Agency of Environmental Conservation and approval obtained. (2) A copy of the approved plans and the Land Use Permit shall remain on the project during all phases of construction and, upon request, shall be made available for inspection by Air North, ANA Ltd. Page 2 (5) Cleanouts shall be provided at each horizontal change in direction of the sewer pipe greater than 45 degrees and at intervals of not more than 100 feet. (6) The installation of the wastewater disposal system shall be inspected by a registered engineer who shall report in writing prior to use, that the work has been done in accordance with the approved plans and the permit. (7) The project is approved for site and foundation work and construction of the subsurface wastewater disposal system only. Final approval of the interior plumbing plans shall be submitted and approved prior to building construction above the foundation. Dated this 27th day of November, 1984, in the Village of Essex Junction, Vermont. FOR THE DIVISION OF PROTECTION Mary K Clark Assistant Regional Engineer Ernest P. Christianson I Regional Engineer CC: Donald Robisky City of South Burlington Katherine Vose Fitzpatrick - Llewellyn Inc. J. G. Architects, Inc. Health Department Fire Prevention NOV 2 7 1984 Nor Noetl--, wa f." 35000-D 1�0 Pr� al Lo s I O)o L.Pa q4, �A- 4t,wL r) Date Received L----_ _— By Date Application Completed and Received By BY CITY OF SOUTH BURLINGTON APPLICATION FOR SITE PLAN REVIEGJ 1) NAME, ADDRESS, AND PHONE NUMBER OF: (a) Owner of Record A.N.A. Ltd. dba Air North 658-2200 (b) Applicant J G A_c ite t I 516 Shelburne Road, So. Burlington Vermont (c) Contact Person Julian Goodrich Tel_• 864-7676 2) PRQTDCT STREET ADDRESS: Burlington International Airport 3) PROPOSED USE(S): _HanLar for maintenance and storage of aircraft 4) SIZE OF PROJECT (i.e., # of units, floor area, etc.) 33600 SF 5) NUMBER OF EMPLOYEES (full & part tu)e) 12 full-time; 8 part-time 2nd shift 6) COST ESTIMATES: (a) Buildings � + $750,000 (b) Landscaping $ 13,600 (c) All Other Site Improvements (i.e., curb work) ± $20,000 7) ESTIMATED PROJECT C(111PLETION DATE 1 December 1984 8) ESTIMATED AVERAGE DAILY 'TRAFFIC (in & out) minimal 5 to 6 _ per day 9) PEAK HOUR(S) OF OPERATION 24 hrs per day - peak 9pm - 7am 10) PEAK DAYS OF OPERATION Mondav thr„ S„nrta DATE LUNATURE OF APPLICANT ulian W. Goodrich J G ARCHITECTS, INC.`--_516 SHELBURNE ROAD,`S.-BURLINGTON, VT DATE: 27 July 1984 TO: So. Burlington Planning Commission RE: Air North Hangar J G Project #4-395 No. of Page Copies No. Description 4 S-2 dated 7/23/84 Remarks: JWG:jd J G Architects, Inc. 516 Shelburne Road S. Burlington, VT 05401. (802)864-7676 By: � ..*h-L'9-11lianW.Griood %0- 13URCIIVGTOR AUG 2 211084 � G A R C H I T E C T S, I N 516 SHELBURNE ROAD SOUTH BURLINGTON, VERMONT 05401 P�IsiVN)NG&�ONtN6 (802) 864-7676 PROJECT: (name, address) ARCHITECT'S PROJECT NO: 9 ��5 DATE: Z2-- $ V � I r TO: Gd DfZ.C..tNGT� PI.A�NfV�� � "YN t 'SSI 0t3 If enclosures are not as noted, please inform us immediately. ATTN : L_ JAc � E � If checked below, please: ETA l_ J ( ) Acknowledge receipt ofenclosures. WE TRANSMIT: ( ) Return enclosures to us. ( herewith ( ) under separate cover via ( ) in accordance with your request FOR YOUR: approval ( ) distribution to parties ( ) information ( ) review & comment ( ) record ( ) use ( ) THE FOLLOWING: Drawings ( ) Shop Drawing Prints ( ) Samples ( ) Specifications ( ) Shop Drawing Reproducibles ( ) Product Literature ( ) Change Order ( ) COPIES DATE REV. NO. -F- � 21 Auk ACTION A. Action indicated on item transmitted CODE B. No action required C. For signature and return to this office REMARKS DESCRIPTION ACTION CODE SI r+�II' L) S� D. For signature and forwarding as noted below under REMARKS E. See REMARKS below COPIES TO: (with enclosures) t 12_ _ N lS�-C1t rI ZZ4GG s�.l_c El El I BY: AIA DOCUMENT G810 • TRANSMITTAL LETTER • APRIL 1970 EDITION AIA® • COPYRIGHT © 1970 THE AMERICAN INSTITUTE OF ARCHITECTS, 1785 MASSACHUSETTS AVENUE, N.W., WASHINGTON, D.C. 20036 ONE a State of Vermont STATE OF VERMONT AGENCY OF ENVIRONMENTAL CONSERVATION CERTIFICATION OF COMPLIANCE RE: 4C0034-3 Air North, ANA Ltd. c/o Walter Houghton Director of Aviation Burlington International Airport Airport Parkway South Burlington, VT 05401 Certified to Comply with Environmental Protection Rules: Chapter 4 - Public Buildings Chapter 7 - Sewage Disposal Exterior Sewage Construction Only This project, consisting of approval for exterior sewer construction and site and foundation approval for a 33,000 square foot airplane maintenance building with on -site subsurface sewage disposal, located at the southern end of the Burlington International Airport off Williston Road in the City of South Burlington, Vermont is hereby certified to satisfy the requirements of the regulations named above, subject to the following conditions: (1) The project must be completed as shown on the plans by Fitzpatrick - Llewellyn Inc., Drawing No. D-1129 Project 84113, Sheet 1, "Air NOrth Wastewater Disposal System" dated November 1984 and which have been stamped APPROVED by the Division of Protection. No alteration of these plans shall be allowed except where written application has been made to the Agency of Environmental Conservation and approval obtained. (2) A copy of the approved plans and the Land Use Permit shall remain on the project during all phases of construction and, upon request, shall be made available for inspection by State or Local personnel. (3) The Vermont Department of Health is to be contacted in regard to any regulations and/or licenses required by their department. (They may be reached at 60 Main Street, Burlington, Vermont, or by phoning 802-863-7220.) Written Health Department approval of the water line extension shall be submitted to the Division of Protection prior to occupying the building. (4) The wastewater disposal system shall be constructed as shown on the APPROVED plan and shall be operated at all times in a manner that will not permit discharge of effluent onto the surface of the ground or into the waters of the State. No construction (buildings, roads, water lines, etc.) that might interfere with the installation or operation of the sewage disposal field or its replacement are is permitted. All isolation distances as set forth in Enviromental Protection Rules, Chapter 8, Section 8-08, and Chapter 7, Appendix 7-D, shall be adhered to. Air North, ANA Ltd. Page 2 (5) Cleanouts shall be provided at each direction of the sewer pipe greater intervals of not more than 100 feet. horizontal change in than 45 degrees and at (6) The installation of the wastewater disposal system shall be inspected by a registered engineer who shall report in writing prior to use, that the work has been done in accordance with the approved plans and the permit. (7) The project is approved for site and foundation work and construction of the subsurface wastewater disposal system only. Final approval of the interior plumbing plans shall be submitted and approved prior to building construction above the foundation. Dated this 27th day of November, 1984, in the Village of Essex Junction, Vermont. CC: Donald Robisky City of South Burlington Katherine Vose Fitzpatrick - Llewellyn J. G. Architects, Inc. Health Department Fire Prevention FOR THE DIVISION OF PROTECTION Mary K Clark Assistant Regional Engineer Ernest P. Christianson Regional Engineer Inc. DONALD L. HAMLIN . i O .1984 CONSULTING ENGINEERS, INC. ENGINEERS AND LAND SURVEYORS 136 PEARL STREET ESSEX JUNCTION, VERMONT 05452 P.O. BOX 9 Tel. 878-3956 878-5123 October 3, 1934 NIr . Rich Warner - Pizzagalli Construction Co. P.O. Box 2009 South Burlington, Vermont 05401 Re: Air North Hanger at Burlington International Airport Dear Mr. . Warner: As requested by Mir. Jake Rainville, we performed the necessary soil tests including a test pit and two.gercolation tests in the proposed leach field area at the Air North Hanger construction site on Tuesday, October 2, 1984. The test pit _showed the sozl-9"to be a granular sand with gravel layers to 8 feet and no ledge or ground water present. The percolation test average was 1.25 minutes per inch. The locations of the test are shown on the attached copy of a portion of the Site Plan by Julian Goodrich, Architects, Inc. sheet S-2 dated August 21, 1984. Our observations and the test results indicate that in our soils in the proposed subsurface sewage disposal area are onsite subsurface sewage disposal system. Very truly yours, Leonard A. Lamoureux, P.E/ LAL:lgw Enclosure WATER WASTE WATERYCOLDDISTRIBUTION SUBDIVISIONS COLLECTION AND TREATMENT STREETS AND HIGHWAYS SKI LIFTS AIRPORTS RECREATION AND INDUSTRIAL PLANNING SOIL BORINGS judgment the suitable for an LABORATORY ANALYSIS I WATER AND WASTE WATER) LAND SURVEYING SOLID WASTE MANAGEMENT Engineering—`eThe link between what we have and what we need,, DONALD L. HAMLIN k jo, Pizzagalli -.instruction Air North Hanger CONSULTING ENGINEERS, INC. SHEET NO. 2 OF 2 P.O. Box 9 ESSEX JUNCTION, VERMONT 05452 CALCULATED BY REG DATE_ 10/2/84 (802) 878-3956 CHECKED BY- LAL DIIE--10/3/84 S SrAl F it, = ?nl . ............. ............ E -ST PERC ,,42 4& 1 6PERC TIC4 7 w v -W Cf4l W 4 6 . ........... I "XT2a I /N�rvlx. r-l". Man 01471 J' . G ARC ] T E C T S, I h C. 516 SHELBURNE ROAD SOUTH BURLINGTON, VERMONT 05401 (802) 864-7676 PROJECT:4 (name, address) r 1 �, ATTN: L WE TRANSMIT: (7y herewith ( ) under separate cover via ( ) in accordance with your request FOR YOUR: J ( ) approval ( ) distribution to parties ( ) review & comment ( ) record ( ) use ( ) THE FOLLOWING: ( ) Drawings ( ) Shop Drawing Prints ( ) Samples ( ) Specifications ( ) Shop Drawing Reproducibles ( ) Product Literature ( ) Change Order ( ) ARCHITECT'S PROJECT NO: 1 DATE: /0 �� d If enclosures are not as noted, please inform us immediately. If checked below, please: ( ) Acknowledge receipt ofenclosures. ( ) Return enclosures to us. ( ) information COPIES DATE REV. NO. DESCRIPTION ACTION CODE %D 3 U ACTION A. Action indicated on item transmitted D. For signature and forwarding as noted below under REMARKS CODE B. No action required E. See REMARKS below C. For signature and return to this office REMARKS COPIES TO: (with enclosures) 11 BY: AIA DOCUMENT G810 • TRANSMITTAL LETTER • APRIL 1970 EDITION • AIAe • COPYRIGHT m 1970 ONE PAGE THE AMERICAN INSTITUTE OF ARCHITECTS, 1785 MASSACHUSETTS AVENUE, N.W., WASHINGTON, D.C. 20036 J G A R C, 4 1 T E C T S, 1 .' C. 516 SHELBURNE ROAD SOUTH BURLINGTON, VERMONT 05401 (802) 864-7676 PROJECT: ARCHITECT'S (name, address) (�1 I / V r ,�' PROJECT NO: DATE: TO: r 1 plav-ffl l iA0 ATTN: - �Vi I Ili{ l L WE TRANSMIT: ( ) herewith ( ) under separate cover via ( ) in accordance with your request FOR YOUR: ( ) approval ( ) distribution to parties ( ) information ( ) review & comment ( ) record ( ) use ( ) THE FOLLOWING: ( ) Drawings ( ) Shop Drawing Prints ( ) Samples ( ) Specifications ( ) Shop Drawing Reproducibles ( ) Product Literature ( ) Change Order ( ) .J If enclosures are not as noted, please inform us immediately. If checked below, please: ( ) Acknowledge receipt of enclosures. ( ) Return enclosures to us. COPIES DATE REV. NO. DESCRIPTION ACTION CODE ACTION A. Action indicated on item transmitted D. For signature and forwarding as noted below under REMARKS CODE 0. No action required E. See REMARKS below C. For signature and return to this office REMARKS COPIES TO: (with enclosures) El ❑ El BY: c ,� AIA DOCUMENT G810 • TRANSMITTAL LETTER • APRIL 1970 EDITION • AIA8 • COPYRIGHT © 1970 THE AMERICAN INSTITUTE OF ARCHITECTS, 1785 MASSACHUSETTS AVENUE, N.W., WASHINGTON, D.C. 20036 ONE PAGE September 12, 1984 Julian Goodrich 516 Shelburne Road South Burlinaton, Vermont 05401 Dear Julian: Enclosed is the Findings of Fact from the Planning Commission's recent site plan approval for the Air North Hangar. Please be sure perc test results are reviewed and approved by Bill Szymanski and the bond for landscaping is Posted prior to applying for a building permit. Please call me if you have any questions. Sincerely, Jane S. Bechtel, City Planner JSB/mcg 1 Encl August 31, 1984 Mr. Julian Goodrich 516 Shelburne Road South Burlington, Vermont 05401 Dear Mr. Goodrich: Enclosed are the minutes from the Planning Commission meeting of August 28, 1984. Your revised site plan was appooved with the eight stipulations listed in the minutes. As soon as you get perc test results to Bill Szymanski and post performance bonds for the hydrant and landscaping you may apply to Dick Ward for a building permit. This site plan approval expires in 6 months. I will be sending the Commissions Findings of Fact under separate cover. Please call if you have any questions. Sincerely, Jane S. Bechtel, City Planner JSB/mcg 1 Encl FINDING OF FACTS STATE OF VERMONT COUNTY OF CHITTENDEN CITY OF SOUTH BURLINGTON Re: Findings of Fact, application of J.G. Goodrich, 516 Shelburne Road On the 14th of August 1984 the South Burlington Planning Commission approved or &KNUM the request of Air North Burlington International Airport, hangar for site plan review under Section 19.10 of the South Burlington Zoning Regulations bald on the following findings: 1. TRAFFIC ACCESS - Access will be through the Airport property off of Route 2. It will not be available to the general public. 2. CIRCULATION AND PARKING - Twenty parking spaces are required. The area around the building will be paved for full circulation. 3. LANDSCAPING & SCREENING - A bond for landscaping ($13,500) will be posted prior to permit. A revised landscaping -plan will be submitted to the Commission for approval prior to permit, showing stabilazation of the embankment to the rear of the building and plantings for noise abatement. 4. OTHER - The height shall not exceed 44 feet The City Engineer must approve drainage, perc test results and the method o disposal of fill prior to permit. There will be no engine run - .ups between 11 P.M. and 6 A.M. A separatorwill e provided to separate fuels from waste water. An additional ire y-drant will be placed on -site, and a bond for 1500 will be poste prior to permit. urlington Planning Commission vt'\)\vj- -S --I -,a, � ��' - 0'C. � ' VIDA No, 4 C� (2) (3) (4) (5) 'VERMONT INDUSTRIAL DEVELOPMENT AUTHORITY Findings of Planning Commission or Municipality (To be prepared by Municipal Planning Commission; if no Municipal Planning Commission exists, Munici- pal Officers or Regional Planning Commission may make findings.) Name of Planning Commission or Municipality........SoutY�..13Uz�.j.�19tQn,.Planning. Commission ......................................................................................................................................................................................... Description of Proposed Industrial Project or Park............................................................................................ Cans.tx.uctiQn..c�...a..3.,.�QQ...Sq1.r...fo4..?Ttd7rik�ns1?ce..hangar. located ..at. ... ... the Burlington. . . ..................... International .... . t ................................................................................................................. Municipality in which Proposed Industrial Project or Park is to be located ................................................ South Burlington, Vermont ...................................................................................................................................... The undersigned ... ...... ��rs... of. the... .Planningomm Cissio.n ............................................................ (Municipal Officers) (Planning Commission) of the City, Town of ........South Burlington .................. ,Vermont, after a study of the proposed industrial site, a review of the municipal ordinances and a general study of the effects of the proposed industrial project or park upon the municipality in which it is to be located here- with submit the following findings at the request of the Vermont Industrial Development Authority. 1. That the proposed industrial project or park (w&) (will not) violate existing zoning ordinances and regulations, and would be located in a district zoned ........ Air.po .t-Ind,ustr.ia1............ 2. That the proposed industrial project or park (is) (ice) in accord with a comprehensive municipal plan. 3. That the proposed industrial project or park (%= (will not) involve unusual costs to the com- munity. If affirmative --estimate costs -- Water Mains $.- .......................................................Street lxtensions$ .......................................................... Sewer Mains$..........................................................Other costs (itemized) 6. That the proposed industrial project or park (is) (!a me ) in the best interests of the community for the following reasons: ...... inc.r.e.ase...tax....eve.n..ue.s.......o....t..h...e..C...i.ty.............. ........................................................................... Signatures 8, 6/84 JSB MOTION OF APPROVAL That the South Burlington Planning Commission approve the revised site plan application of Air North, Mr. Julian Goodrich, agent, for the construction of a 35,600 square foot maintenance hangar located at the Burlington International Airport as depicted on a set of four plans entitled "Air North, Hangar at Burlington International Airport, Vermont" prepared by J.G. Architects, Inc., and Pizzagalli Construction Company dated August 21, 1984 with the following stipulations: 1) That the applicant obtain Zoning Board approval prior to permit if any excavation material will be disposed of off site. 2) That the applicant supply percolation tests for on -site sewage disposal to the City Engineer for his approval prior to permit. 3) That a $1500 bond for the fire hydrant and a $13,500 bond for landscaping be posted prior to permit. 4) That the height shall not exceed 44 feet. 5) That a separator be provided to separate out petroleum wastes from waste waters before they go to the dry wells. 6) That the building will hook up to City sewer at the applicants expense when the City sewer line reaches the property line and when capacity is available. 7) That all prior site plan approvals are null and void. 8") That this approval expires in 6 months. 1 \pm �0 Ck �,t,.. Soto = (O®o C) 0 C) L4 00 Ix k"7 r6 -7 r3�"CO - I;z:B 7. S i(AD - (05 6 ;p q, 14 I — 0 for?- 4 1 "s- M., "�Id���xe6� � Ga''l - No Text M E M O R A N D U M To: South Burlington Planning Commission From: William J. Szymanski, City Manager Re: Next week's agenda items Date: 8/24/84 2) Air North Hangar, Burlington International Airport 1. I have reviewed the site with Airport Manager Walter Houghton and find the drainage work as shown on the site plan titled Air North Hangar of Burlington International Airport, dated August 21, 1984 acceptable. Surplus material will be disposed of adjacent and easterly of the building site. 3) D.H. Goss Agency, 1485 Shelburne Road 1. The addition parking area is O.K. however, I question the need for the additional curb cut. Shelburne Road in this area transition from four lanes to two through lane at the signalized Bartletts Bay intersection making it difficult to enter and exit at the one opening, adding another only adds to the problem. Making the new opening an exit only is difficult if not impossible to enforce. 4) Yinq Liu Subdivision, Hiqhland Terrace 1. In July 1983 Mr. Liu received Zoning Board approval to fill on property he owns at 311-315 Hinesburg Road. With this approval several stipulations were set. In December 1983 Mr. Liu was in- formed (copy of letter attached) that he is not abiding by those stipulations. To date he has not responded. Even though not related addition approvals should not be given Mr. Liu until he abides to his other commitments. r M E M O R A N D U M To: South Burlington Planning Commission From: Jane S. Bechtel, City Planner Re: August 28 Agenda Items y) Date: 8/22/84 The photographer plans to take pictures for the Annual Report before the meeting Tuesday night. Please try to come a few mintues early if at all possible. 2) AIR NORTH HANGAR The applicant has slightly revised the site plan that was approved by the Commission at the last meeting. The parking lot is now located at the south-west side of the hangar. It no longer conflicts with 1. planes that will be using the ramp, and lines up with future plans for a road connection to Route 2. The excavation of the bank will be more in line with the existing configuration. The number of parking spaces does not change. The landscaping plan has been verified at greater than the value required. It is designed for bank stabilization and noise control. Two hundred white pines will be planted on the bank for screening and noise control. The bank will be seeded with hydro seed and mulch. Additional landscaping is proposed around the hangar and parking lot. Bill Szymanski has reviewed this plan (see attached memo). Tne hangar will have to hook up to municipal sewage if and when the line reaches their property line. There are no plans for this at this time. However, the soils are very good for on -site disposal. 3) GOSS DODGE, 1485 SHELBURNE ROAD The applicant proposes to pave a 145'x60' parking area for display- ing 26 vehicles in the front yard of the Goss Dodge lot. An exist- ing,ovunused and grassed curb cut will be paved. Vehicles will"exit only onto Shelburne Road. The facts are as follows: - The lot will be used for displaying vehicles and exclusively for exiting vehicles. The curb cut exists but is grassed over and unused. -Entering vehicles will use the southerly driveway. Vehicles will usually be parked in the new"proposed"lot by sales personnel when returned by customers. The applicant claims that the new lot is needed because the existing lot is tight and cars have been damaged. J G A R C H I T E C T S, I N C. 516 SHELBURNE ROAD SOUTH BURLINGTON, VERMONT 05401 (802) 864-7676 PROJECT: ARCHITECT'S (name, address) t1�PROJECT NO: Ar' TO: J WE TRANSMIT: )",,A herewith ( ) under separate cover via _ ( ) in accordance with your request FOR YOUR: ( ) approval ( ) distribution to parties ( ) review & comment ( ) record (x use ( ) THE FOLLOWING: ( ) information DATE: -23 AN6c)ST 18 i If enclosures are not as noted, please inform us immediately. If checked below, please: ( ) Acknowledge receipt of enclosures. ( ) Return enclosures to us. ( ) Drawings ( ) Shop Drawing Prints ( ) Samples ( ) Specifications ( ) Shop Drawing Reproducibles ( ) Product Literature ( ) Change Order ( ) V I C-7A+ w COPIES DATE REV. NO. DESCRIPTION ACTION CODE I ACTION A. Action indicated on item transmitted CODE B. No action required D. For signature and forwarding as noted below under REMARKS E. See REMARKS below COPIES TO: (with enclosures) ri ❑ , 13 Ei BY: AIA DOCUMENT G810 • TRANSMITTAL LETTER • APRIL 1970 EDITION • AIA® • COPYRIGHT © 1970 ONE PAGE THE AMERICAN INSTITUTE OF ARCHITECTS, 1785 MASSACHUSETTS AVENUE, N.W., WASHINGFON, D.C. 20036 August 22, 1984 Julian Goodrich 516 Shelburne Road South Burlington, Vermont 05401 Dear Mr. Goodrich: Enclosed is a copy of the agenda for the Planning Commission meeting on Tuesday, August 28 at 7:30 P.M. Please be sure someone is present to represent the application. Also enclosed is a copy of my memo to the Commission and Bill Szymanski's memo. Please call if you have any questions. Sincerely, Jane S. Betchel, City Planner JSB/mcg 3 Encls Brockway Air Name Antony von Elbe, 38, has been named chief executive of Brockway Air and will help oversee the commuter line's con- struction of a $1.5 million hangar at Burlington International Airport. Air North and Clinton Aero of Plattsburgh, N.Y., are Brockway Air sub- sidiaries. Beginning Sept. 1, both lines will be known as Brockway Air, after the parent Brockway Inc., a Pennsylvania packaging and container manufacturer. A news release said E. Andrew Deeds, founder and chairman of Air North, has retired from the airline and will work full time for Northern Airways. Northern Airways, formerly affiliated with Air North, is the largest fixed -base operator at the South Burlington airfield. Von Elbe replaces David R. Robinson, who leaves to work for Northern Airways. Von Elbe is president of Clinton Aero, which he joined in April 1982, and for- s New Ch merly was executive vice president of a Florida company that operates restau- rants, hotels, amusement parks and duty- free shops. . The 33,600-square-foot hangar will be built on the southeast corner of the air- port and will be capable of housing three of the carrier's large airliners for mainte- nance work. The structure will be built on land leased from the airport and should be finished in December. Fief Exec Airport Manager Walter Houghton the site will be prepared for the bui', this week. Beginning next month. North and Clinton Aero ticket cou and ground handling stations will be bined under the Brockway banner. Brockway purchased the two air last year as part of an expansion ( airline division. The division, heade John A. Sullivan Jr., also runs C Airways in DuBois, Pa. August 20, 1984 Julian Goodrich, AIA 516 Shelburne Road South Burlington, Vermont 05401 Dear Mr. Goodrich: Enclosed are the minutes of the Planning Commission meeting of August 14, 1984. The site plan for the maintenance hangar for Air North was approved with the following stipulations: 1) That a landscape plan showing stabilization of the embankement to the rear of the building and plantings for noise abatement be submitted and approved by the Planning Commission prior to issuance of a building permit. 2) That the applicant specify the method of disposing of excavation material and if the material will be disposed off site, that Zoning Board approval be obtained prior to permit. 3) That the plan be amended to show site drainage prior to permit. 4) That the applicant supply percolation tests for on site sewage disposal to the City Engineer for his approval. 5) That there shalt be no engine run -ups during the hours of 11:00 P.M. to 6:00 A.M. 6) That a $1500 bond for the fire hydrant and a bond of $13,500 for landscaping be posted prior to permit. 7) That the height shall not exceed 44 feet. 8) That a separator be provided to separate out petroleum wastes from the waste waters before they go out to dry wells. 9) That this approval expires in 6 months. Julian Goodrich, AIA August 20, 1984 Page 2 I understand that you will be sending me your revised landscaping plan, and a parking lot revision to be considered by the Planning Commission on August 28. Please be sure I have your site plan and landscaping plan by Tuesday, August 21. Sincerely, Jane S. Bechtel, City Planner JSB/mcg , LSL- E- LU a4t�-Ln-.4 )8/13/84 JSB MOTION OF APPROVAL That the South Burlington Planning Commission approve the site plan application of Air North,[Ar. Julian Goodrich, agent for the construction of a 33,600 square foot maintenance hangar located at the Burlington International Airport as depicted on a plan entitled "Air North Hangar, Burlington International Airport`/as prepared by J.G. Architects, Inc., and Pizzagalli Construction Company, dated July 23, 1984 with the following stipulations: 1. That a landscape plan showing stabilization of the embankment to the rear of the building,be submitted and approved by the City Pl.ann-er prior to issuance of a building permit. 2. That the City Engineers concerns as expressed in a memo dated August 10, 1984 regarding excavation and disposal of material, site drainage and perculation tests, be addressed prior to permit. 3. That there shall be no engine run -ups during the hours of 11:00 P.M. to 6:00 A.M. 4. That a $1500 bond for the fire hydrant and a bond of $13,500 for landscaping be posted prior to permit. 5. That the height shall not exceed 44 feet. -6;. That this approval expires in 6 months.` 4L I M 8/13/84 JSB MOTION OF APPROVAL That the South Burlington Planning Commission approve the site plan application of Air North, Jr. Julian Goodrich, agent for the construction of a 33,600 square foot maintenance hangar located at the Burlington International Airport as depicted on a plan entitled "Air North Hangar, Burlington International Airport as prepared by J.G. Architects, Inc., and Pizzagalli Construction Company, dated July 23, 1984 with the following stipulations: 1. That a landscape plan showing stabilization of the embankment to the rear of the building be submitted and approved by the City Planner prior to issuance of a building permit. 2. That the City Engineers concerns as expressed in a memo dated August 10, 1984 regarding excavation and disposal of material, site drainage and perculation tests, be addressed prior to permit. 3. That there shall be no engine run -ups during the hours of 11:00 P.M. to 6:00 A.M. 4. That a $1500 bond for the fire hydrant and a bond of $13,500 for landscaping be posted prior to permit. 5. That the height shall not exceed 44 feet. 6. That this approval expires in 6 months. Memorandum Agenda items for August 14, 1984 August 10, 1984 Page 2 other access through Merriam -Graves and there is no possibility of this. The City sidewalk in the front of the lot is shown on the plan as requested by Bill Szymanski. A snow removal area is also shown. See Bill's memo regarding drainage. All other items are satisfactory. 4) MM ers and Liberty, 1001 Dorset Street The applicant proposes to use an existing barn for antique sales. It will be operated on weekends from 10 A.M. to 5 P.M. The Zoning Board is hearing a request on Monday, August 13. Assuming approval is granted, my continents are as follows: Pedestran and Vehicular Access: The driveway is 20 feet wide. There is no curbing. Vehicles will drive onto the lawn for off-street parking. Circulation: Circulation will be haphazard at best. There is nothing to prevent cars from driving onto and off of Dorset Street at any location unless some sort of fence or even saw horses are placed along the property line. Parking: The front lawn can serve approximately 20 vehicles. The applicant expects 15 cars on Saturdays and Sundays. Landscaping Is sufficient. No building improvements are proposed. 5) Chittenden Trust Company, Dorset Street The applicant proposes to construct a new automatic teller machine area (24'x101). There are no major problems with this application. Pedestrian and Vehicular Access: Access will remain as it is. The new ATM area will be placed over the existing concrete walkway and a new walkway will be installed. Circulation: Remains adequate with a sufficient stacking area for cars and complete circulation around the building. Parking: Spaces are adequate with 34 provided. The plans for Dorset Street widening will take 8 to 10 feet of frontage on this site. This will not seriously affect the site or parking. 6) Air North Maintenance Hangar, BIA The applicant proposes to build a 33,600 square foot maintenance hangar located at the site of a previously approved Air Vermont Hangar off of Williston Road. Memorandum Agenda items for August 14, 1984 August 10, 1984 Page 3 The items of concern are as follows: Pedestrian and Vehicular Access: Access will be through the Airport property, off of Route 2. It will not be available to the general public. Circulation and Parking: The Parking lot is adequate with 20 spaces provided. The area around the building is paved to allow full circulation. Landscaping: A $13,500 bond for landscaping is required. Additional plantings will be required to meet this requirement. Hemlock and Yew are proposed and will be fairly dense. An embankment will be cut away to build the hangar. The sandy soils should be stabilized as quickly as possible. At the previous Air Vermont approval, the noise committee requested that dense evergreens be planted between the top of the crest and the new bottom of the bank to cut down on noise. The sandy soils should be stabilized. The chain link fence will be relocated. Other: Chief Goddette has reviewed this plan with the Air Guard Chief and requests an additional fire hydrant. Two are already available on site. (See Goddette memo) The airplane hangar is a taller structure than allowed by the regulations. The 44 foot height requires your approval and determination that this structure (above the 35 foot maximum) 1) will utilize topography and relate to other existing and proposed structures so as to be aesthetically compatible; 2) will not detract from scenic views; and 3) will allow retention of additional green space to enhance the appearance of the property. (Zoning Regulations - Section 18.112b) I believe these items can be determined with confidence. 7) Burlington Tennis Club, Twin Oaks Terrace The applicant proposes to construct a nursery containing approximately 1100 square feet, and a 21,500 square foot office/physical fitness complex at a height of 42 feet. On August 13, the Zoning Board will consider a request to allow the applicant to exceed the maximum allowable (600) coverage, for a variance of Section 19.104, parking and circulation exceeding the maximum 30o front yard coverage, and a waiver of the maximum height to allow a 42 foot structure as well as the conditional use permit. Assuming these are granted, my comments are as follows: Pedestrian and Vehicular Access: The one existing access drive is proposed to serve two large lots for 70 and 62 cars. This appears to be overburdening the one access point and a new drive may be adviseable. M E M O R A N D U M To: South Burlington Planning Commission From: William J. Szymanski, City Planner Re: Next week's agenda items Date: 8/10/84 3) MEDICAL OFFICE, 1540 WILLISTON ROAD 1. The parking lot drainage should be intercepted and piped into the Williston Road drainage system. The area is flat and subject to spring ponding; the new parking lot will add to the problem by the increased runoff and or forcing the runoff on to adjacent property especially if parking area is filled and enlarged. 4) LIBERTY/MYERS No comments 5) CHITTENDEN TRUST COMPANY, Dorset Street No comments 6) Air North Hangar, Burlington International Airport 1. Site will require extensive excavation. Method of disposing of this material must be defined and if disposed off the project site, it will require Zoning Board approval. 2. Plan should show site drainage. 3. Perculation tests for on site sewage disposal shall be furnished. 4. There should be no engine runups during the hours of 11:00 P.M. to 6:00 A.M. 7) TWIN OAKS TENNIS CENTER, TWIN OAKS DRIVE 1. Parking lot drainage shall include inlets and piping to the street system. 2. The frontage landscaped strip as required by the regulations should be maintained. This has worked well;it provides snow storage and prevents parked cars from extending over the sidewalk. August 10, 1984 Julian Goodrich, A.I.A. 516 Shelburne Road South Burlington, Vermont 05401 Dear Mr. Goodrich: Enclosed is the agenda for the August 14 Planning be sure someone is Present to represent Catiossion meeting. Please P your application. Also enclosed is a copy of my memo to the Commission and an other materials. Please call me if you have any questionsy Pertinent . Sincerely, Jane S. Bechtel, City Planner JSB/mcg No Text BURLINGTON INTERNATIONAL AIRPORT CONTRACT DOCUMENTS AND SPECIFICATIONS FOR METRO HANGER PRESSURE SEWER November 1994 Donald L. Hamlin Consulting Engineers, Inc. 136 Pearl Street / P.O. Box 9 Essex Junction, Vermont 05452 878-3956 TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS TABLE OF CONTENTS 01010 SUMMARY OF WORK AND SPECIAL CONSTRUCTION NOTES T_1 01011 GENERAL PROJECT MANAGEMENT T-2 01030 UNDERGROUND UTILITY DAMAGE PREVENTION "DIGSAFE" T-5 01080 APPLICABLE CODES T-6 01500 TEMPORARY FACILITIES T 8 01560 SPECIAL CONTROLS T 9 01569 PROTECTION OF THE PUBLIC T-10 01570 MAINTENANCE AND PROTECTION OF TRAFFIC T 11 01575 WORK WITHIN STATE HIGHWAY RIGHT-OF-WAY T-12 02100 CLEARING, GRUBBING AND STRIPPING OF TOPSOIL T-14 02211 ROCK EXCAVATION T 15 02221 PIPELINE TRENCHES AND EXCAVATIONS FOR STRUCTURES T 16 02265 BEDDING FOR PIPE AND BACKFILL T 19 02530 DEWATERING T-22 02560 SEWER PIPE LINES AND RELATED CONSTRUCTION T-23 02650 BITUMINOUS CONCRETE PAYMENT T-28 02652 REPLACEMENT OF BITUMINOUS, CONCRETE OR GRAVEL SURFACES T 36 02820 FINAL GRADING, TOPSOILING AND SEEDING T 37 03401 PRECAST CONCRETE MANHOLES T 39 04110 CEMENT AND LIME MORTAR T-40 04211 BRICK MASONRY FOR MANHOLES, CATCH -BASINS AND SIMILAR UNDERGROUND STRUCTURES T-41 05550 MISCELLANEOUS METALS FOR MANHOLES AND CATCH BASINS T-42 15355 GRINDER PUMP SYSTEM T 43 01010 SUMMARY OF WORK AND SPECIAL CONSTRUCTION NOTES Summary of Work: Work of this contract involves installation of a new packaged duplex sewage grinder pump station, control panel and force main to serve the so-called Metro Hanger at the Burlington International Airport. The force main will run cross country approximately 1300 feet to an existing gravity sewer along Williston Road, where a new manhole will be installed to accept the connection. Seed Mix: All seed used in the restoration of this project shall be Conservation Mix. Existing Septic System: This hanger is presently in use and is served by a septic tank and leach field located north of the building. The system shall be maintained in use until such time as the pump station and force main are tested and approved. Then the septic tank shall be pumped out, and crushed or filled with compacted granular soil. Special Construction Note For Station 11+55 to 13+55: In this area, as shown on the Contract Drawings, the new pressure sewer shall be laid to the elevations shown to accommodate a potential future road cut. 3.17.89 T-1 01011 GENERAL PROJECT MANAGEMENT WORK INCLUDED: This section pertains to the general contract requirements which must be met by the Contractor and the project management and control standards which must be utilized by the Contractor. MANAGEMENT OF PROJECT SITE: The Contractor shall ensure that at the end of each working day, the job site shall be left in a condition satisfactory to the Engineer. All excess and unnecessary construction equipment and debris shall be removed from the job site as work progresses. The Contractor shall be responsible for protecting all existing structures and work completed under this Project at his own expense. The Contractor shall take all precautions and institute such procedures as are necessary to protect both life and property. All work, which, during its progress or before the final acceptance of the work as established by the Engineer's Certificate of Completion, may have become damaged from any cause, shall be removed and replaced at the Contractor's expense, for both labor and materials. Care shall be exercised on the part of the Contractor to ensure that property damage does not occur on private property and that as little damage as possible is done within construction easements. Protection will be afforded cultivated trees and shrubbery, fences and walls, and similar features where adjacent to the construction. The Contractor is responsible for ensuring that the condition of private property or easement lands is restored to the condition which existed prior to the construction. The Contractor shall be held responsible for all damages resulting from a failure to comply with the provisions of this section. SURVEY CONTROL PROVIDED: The Engineer shall provide the Contractor with locations of the pump station and bends on the pressure sewer. Such control shall be set one time only. Thereafter, the Contractor shall be responsible for protecting control points from damage and dislocation. -Should additional work be required by the Engineer to reestablish control points , he shall be reimbursed by the Contractor. All elevations shown on the Contract Drawings refer to a datum which is mean sea level as established by the USGS, unless otherwise noted on the Contract Drawings. Bench marks will be provided by the Engineer. MEASUREMENT OF QUANTITIES OF WORK: Unless otherwise provided for in the payment clauses of the Specifications, the method of measurement of the work shall be that determined by the Engineer. In the case of earth excavation and rock excavation, unless otherwise provided for, the method of measurement of quantities will consist of cross sections measured in the field at intervals determined by the Engineer and computations of volume by the method of average end areas. In the case of quantities paid for on an area basis, unless otherwise provided for, the area to be paid for shall be within established pay limits, calculated using field measurements along final grade line. 3.17.89 T -2 For the computation of areas the "Planimeter" shall be considered an acceptable instrument of precision. PROTECTION AND REPAIR OF EXISTING UTILITIES: Wherever culverts, sewers, drains, manholes, catch basin connections, water mains, valve chambers, electrical conduits, telephone conduits, utility poles, overhead lines or other facilities are encountered they shall be protected and supported by the Contractor at his own expense, by methods approved by the Engineer, until the excavation is backfilled and the existing facilities are made secure. Injury to any such facilities caused by or resulting from the Contractor's operations, shall be repaired at the Contractor's expense within a time period that will not place an unreasonable burden on the users. The Owner, Engineer and the Authority having charge shall be notified promptly of any damage to utilities. Whenever the Engineer may require, pipes or other underground structures encountered in excavating or trenching shall be permanently supported with wooden supports across excavation or trench, or by other methods acceptable to the Engineer. RECONSTRUCTION OF EXISTING UTILITIES: In case it shall become necessary, in the opinion of the Engineer, to move or reconstruct any water main, electrical conduit, telephone conduit, any connections thereto or any appurtenant structures, work will be done by the Contractor. The Contractor shall be responsible for providing notice to users before interrupting service. Unless specifically provided for in this contract, reconstruction of the utilities shall be at the Contractor's expense. In no case shall the Contractor alter any water main, electric conduit, telephone conduit or any underground cables, conduits or structures, without written permission of the Engineer or until the Engineer is satisfied that adequate warning to the users has been provided. PROTECTION OF WATER SUPPLIES: Wherever sewers and water mains cross, construction shall be done in accordance with the "Sewer -Water Separation Details for Crossings" shown in the Appendix or on the plans. Where sewers and water mains will be parallel to each other, there shall be a minimum separation distance of ten (10) feet, measured edge to edge of pipe or if such distance cannot be maintained, as determined by the Engineer, the distance can be reduced providing the water main is in a separate trench or on an undisturbed earth shelf located on one side of the sewer and at an elevation so the bottom of the water main is at least 18 inches above the top of the sewer. WORK OUTSIDE RIGHTS -OF -WAY AND EASEMENTS: The Contractor shall not, without written consent from the owner, enter or occupy with men, tools, materials or equipment, any land outside the rights -of -way or easement limits. A copy of the written consent shall be provided to the Engineer. PROJECT PROGRESS SCHEDULES: Before starting the work and from time to time during its progress, as the Engineer may request, the Contractor shall submit to the Engineer a written description of the methods he plans to use in doing the work and the various steps he intends to take. Within 15 days after the date of starting work, the Contractor shall prepare and submit 3.17.89 T -3 to the Engineer (a) a written schedule fixing the dates at which additional drawings, if any, will be required and (b) a written schedule fixing the respective dates for the start and completion of various parts of the work. Each such schedule shall be subject to review and change from time to time during this progress of the work. Included with this schedule shall be breakdown of monthly estimated construction costs and material on - site. WORK TO CONFORM: During its progress and on its completion, all work shall conform truly to the lines, levels and grades indicated on the drawings or given by the Engineer and shall be built in a thoroughly substantial and workmanlike manner, in accordance with the drawings and specifications and the directions, given from time to time by the Engineer. In no case shall any work in excess of the requirements of the drawings and specifications be paid for unless ordered in writing by the Engineer. PERMITS: It shall be the Contractor's responsibility to obtain all federal, state, regional or local permits necessary for the construction of the project. The Contractor is also responsible for maintaining these permits in force during the length of the contract and for taking all required actions to comply with the content of the permits. SUBSURFACE INFORMATION PROVIDED: Subsurface information provided is to assist the Contractor in making a bid. Subsurface information provided as part of the Contract Documents is not guaranteed to be representative and bidders are encouraged to take additional borings prior to bidding. COMPACTION: At the preconstruction conference, the Contractor shall be required to submit in writing to the Engineer, for approval, the method(s) to be utilized to meet the compaction requirements contained in these Specifications. The Contractor will be required to have specialized compaction equipment on the job site as may be needed to properly compact material specifically for this project. Pieces of equipment such as vibrating plate compactors, stampers, rammers, vibratory rollers, sheepsfoot rollers, wobbly wheeled rollers, rubber tired rollers, steel wheeled rollers and the like shall be considered suitable equipment for compaction. Such pieces of equipment as backhoe buckets, bulldozers and the like shall not be considered for use as compaction equipment unless specifically approved by the Engineer for special cases. SUPERVISORS ON THE JOB SITE: The Contractor shall be responsible for ensuring that there is a Supervisor under his direct employ on the job site at all times that construction is underway, whether or not the construction is being accomplished by the Prime Contractor or Subcontractors hired by the Prime Contractor. SITE RESTORATION: Preconstruction photographs shall be taken by the owner or his representative of all areas to be affected by this contract. These photographs will be utilized upon completion of construction to establish satisfactory compliance with restoration of site to preconstruction condition. All previously vegetated areas which have been disturbed as a result of this construction shall be graded, topsoiled, seeded and mulched as per section 02820 prior to October 1. 3.17.89 T -4 01030 UNDERGROUND UTILITY DAMAGE PREVENTION "DIGSAFE" Before the Contractor removes soil or rock to create an open space in the earth greater than one foot in depth by means of any powered or mechanized equipment within an underground utility easement or in the area of a public right-of-way in which an underground utility may be located, the Contractor shall notify "Digsafe" by calling their toll -free number 1-800-225-4977. Digsafe will then notify all utility companies having underground utilities in that area so that they can mark the location of these facilities. The utility companies should mark their lines within forty eight hours from the time Digsafe was notified (excluding Saturdays, Sundays, and legal holidays). Sewer and water facilities shall not be classified as a "utility" under this Specification. Emergency excavations are exempt from this requirement. Effective January 1, 1988, the mandatory notification of Digsafe in the above mentioned situations became Vermont State Law. A fine of $1,000 may be levied for failure to telephone Digsafe before an excavation is made. 6.11.91 T-5 01080 APPLICABLE CODES MATERIAL SPECIFICATIONS: All materials, unless specified otherwise, utilized on this contract shall be subject to the approval of the Engineer and shall meet the applicable requirements of the latest published specifications and standards of the following institutions, associations or departments. American Concrete Institute American Society of Testing and Materials American Institute of Steel Construction American Water Works Association Vermont Department of Highways - "Standard Specifications for Highway and Bridge Construction" American Welding Society National Electrical Code National Plumbing Code All Applicable State and Local Codes and Permits ABBREVIATIONS AND REFERENCES: Where reference is made to a specification of one of the below mentioned or other associations or societies, it is understood that the serial designation of specification in effect at the date of receipt of bids shall take precedence over those listed below. ASTM American Society for Testing and Materials ASA American Standards Association AWWA American Water Works Association AASHO American Association of State Highway Officials AASHTO American Association of State Highway and Transportation Officials ACI American Concrete Institute AGMA American Gear Manufacturers Association ANSI American National Standards Institute AISC American Institute of Steel Construction ASCE American Society of Civil Engineers ASME American Society of Mechanical Engineers ASHRAE American Society of Heating, Refrigerating and Air Conditioning Engineers AIA American Institute of Architects ASSE American Society of Sanitary Engineers AGC American General Contractors of America CEC Consulting Engineers Council EPA Environmental Protection Agency IEEE Institute of Electrical and Electronics Engineers NBFU National Board of Fire Underwriters NBS National Bureau of Standards NSPE National Society of Professional Engineers NEWWA New England Water Works Association NEC National Electric Code NEMA National Electrical Manufacturers Association PCA Portland Cement Association 6.7.91 T -6 SCPI Structural Clay Products Institute U L Underwriters' Laboratories WPCF Water Pollution Control Federation 6.7.91 T -7 01500 TEMPORARY FACILITIES WORK INCLUDED: Included in this section pertains to the Contractor's responsibility of providing temporary facilities The Contractor shall be responsible for and shall bear at his own expense all temporary facilities necessary for the proper fulfillment of the Contract, including but not limited to all temporary electricity, lighting, heating and ventilation, telephone service, water, sanitary facilities, safety and first aid facilities. The Contractor shall make all arrangements for temporary facilities well in advance of need so as to not delay construction. All temporary facilities shall be adequate to perform the function for which they are intended without risk of personal or property damage to any individual. 3.17.89 T-8 01560 SPECIAL CONTROLS WORK INCLUDED: Work included in this section pertains to the special controls which the Contractor must institute and maintain during the length of the Contract. DUST CONTROL: The Contractor shall be responsible at his own expense for ensuring that the dust created as a result of construction activities does not create a nuisance or a safety hazard. Where and when deemed necessary the Contractor will be required to wet sections of the construction area with water or apply calcium chloride or sweep the roadway with a power broom as dust control measures. Dust control measures shall be provided at all times, including evenings and weekends. WATER CONTROL: The Contractor shall take all necessary measures to handle all water in excavations, shall furnish all materials and equipment and shall do all incidental work to keep the excavation entirely clear of water while pipelines, structures and their foundations are being built. The Contractor shall be responsible for choosing the method for control of water and shall assume all responsibility for the adequacy of the methods chosen. No construction shall be undertaken if, in the opinion of the Engineer, adequate control of water is not assured. WATERTIGHTNESS: It is the responsibility of the Contractor to ensure that all new structures, pipes and equipment built under this contract for the purpose of containing water or other fluids or for conveying such liquids are watertight under all operating conditions for which they are intended. Any pipe or structures, where leakage is determined to be excessive by the Engineer, shall be subject to correction or replacement by the Contractor at his own expense. POLLUTION CONTROL: During the construction period, the Contractor shall exercise every reasonable precaution to prevent pollution of the waters of the State. Pollutants such as chemicals, paints, fuels, lubricants, bitumens, raw sewage and other harmful waste shall not be discharged into or alongside these waters or into natural or man- made channels leading thereto. Applicable statues and regulations of the Vermont State Agency of Environmental Engineering relating to the prevention and abatement of pollution shall be complied with. 3.17.89 T-9 01569 PROTECTION OF THE PUBLIC WORK INCLUDED: Work included in this section pertains to the Contractor's responsibility to protect the public and workmen. The public shall be protected by the Contractor from any and all hazards connected with the work. Open trenches, materials or other equipment within the working limits are to be guarded by the use of adequate barricades, snowfence or flagmen. All barricades left in position overnight are to be properly lighted. Kerosene pots are not acceptable. The Contractor shall be held responsible for the safety of all workmen and the general public and all damages to property occurring from or upon the work occasioned by negligence or otherwise, growing out of a failure on the part of the Contractor to protect persons or property from hazard of open trenches, materials or equipment at any time of the day or night within the working area. All work shall be in conformance with OSHA regulations, Title 19, Parts 1926.651 and applicable VOSHA regulations. 3.17.89 T-10 01570 MAINTENANCE AND PROTECTION OF TRAFFIC WORK INCLUDED: This section includes the methods the Contractor shall employ to maintain and protect traffic. The Contractor shall provide uniformed traffic police or flagmen as deemed necessary by the Engineer and/or governmental agencies. The Contractor shall, as conditions warrant, employ flagmen at any location on the project where his equipment or construction operations are such that they will in any manner interfere with the movement or safety of the traveling public. The Contractor shall erect warning signs in advance of any place on the project where operations may interfere with the use of the road by traffic and at all intermediate points where the project crosses or coincides with an existing road. The cost of traffic police services occasioned by the Contract shall be paid for by the Contractor. The cost of uniformed traffic police will not be paid separately but shall be included in the prices stated in the several items of work in the Schedule of Prices in the Proposal. One-way traffic shall be maintained unless otherwise authorized by the Engineer. The Contractor shall notify the Engineer, local police and fire departments as well as municipal officials at least 72 hours in advance of any intent to close streets. The Contractor shall work with the local government to establish a suitable alternate route, and shall at his own expense, provide and maintain suitably marked and well lighted detour signs. The employment or presence of traffic flagmen or uniformed police does not relieve the Contractor of any responsibility or liability under this contract. 3.17.89 T-1 1 01575 WORK WITHIN STATE HIGHWAY RIGHT-OF-WAY WORK INCLUDED: Included in this section are the requirements that the Contractor must meet while working within the State highway right-of-way. GENERAL: The Contractor shall apply for and obtain Highway Permits prior to the commencement of any construction within a public highway right-of-way. Permits for work within a State highway right-of-way shall be obtained from the Utilities Engineer, Vermont Agency of Transportation, Montpelier, Vermont. A preconstruction meeting will be held prior to the Contractor beginning work. The Agency of Transportation's District Transportation Administrator and/or Utilities Engineer, the Contractor's superintendent, and the Engineer assigned to the project will be present at this meeting. Upon completion of the work, a final inspection will be held, with the same parties present as at the preconstruction meeting. The Contractor will be required to restore the highway right-of-way to as good a condition as it was prior to doing the work, and to the satisfaction of the Agency of Transportation's District Transportation Administrator. Ten (10) days written notice shall be given to the District Transportation Administrator before any work is done within a State Highway right-of-way. A copy of such notice shall be furnished to the Engineer. Inspection by the Agency of Transportation shall be permitted as construction progresses. The Contractor's work shall be performed in such a manner that the roadway, appurtenances and highway traffic will be safeguarded. No blasting will be permitted under or adjacent to the highway unless special permission has been received from, and arrangements made, with the District Transportation Administrator. The Contractor shall suspend all work within the State Highway right-of-way during the period from November 15th to April 15th. Prior to suspension of work, the Contractor shall hold a conference with the Engineer, District Transportation Administrator and the Owner. Any work required as a result of this conference shall be accomplished prior to November 15th. All bituminous paved travel ways, shoulders and parking areas disturbed under this Contract shall be restored prior to suspension of work. Gravel surfaces in travel ways and parking areas shall be restored to a condition equal to that which existed prior to start of construction. All bituminous paved and gravel surfaced travel ways and parking areas shall be maintained by the Contractor throughout the suspension of work period. Traffic shall be protected at all times by suitable barricades, warning and advance warning signs, as required to protect the public during the construction period. All construction operations will be conducted so as to cause a minimum of interference with traffic. At least one-way traffic shall be maintained at all times. Two-way traffic shall be maintained at all times when construction operations are not in progress. Uniformed officers shall be provided for the control of traffic when two-way traffic cannot be 6.11.91 T -1 2 maintained and at such other times as may be required by the District Transportation Administrator for the protection of the public. APPROVAL: Before any construction operations are started, the Contractor shall submit to the Engineer in triplicate, a detailed written description of the equipment and methods he proposes to use and acceptable sketches showing details of the proposed operation. If a sub -contractor is to be used for the work, the name and address of the sub -contractor shall be indicated in the written description. No work shall proceed until the Contractor's plans and schedules have been approved in writing by the Owner, the Engineer and the District Transportation Administrator. In areas presently grass covered, turf shall be re-established in accordance with Section 651, Vermont Agency of Transportation Standard Specifications for Highway and Bridge Construction, to the satisfaction of the District Transportation Administrator. The Contractor shall be responsible for the turf and grade of the ground surface for one year following the completion of the work, or as specified by the District Transportation Administrator. 6.11.91 T-1 3 02100 CLEARING, GRUBBING AND STRIPPING OF TOPSOIL WORK INCLUDED: The Contractor shall do all clearing, grubbing and stripping necessary to permit construction of the work within the limits of the property or easements indicated in the drawings. CLEARING AND GRUBBING: The Contractor shall do all necessary work of clearing and shall dispose of all material, including trees and brush as may be approved by the Engineer. Disposal shall comply with local ordinances. All areas cleared shall be left clean and presentable. Except within actual lines of trenches, manholes, roadways or sidewalks to be built, where trees must be removed, no live trees with trunks over four (4) inches in diameter shall be removed unless otherwise required or approved by the Engineer. Clearing shall be done in such a manner that present growth will merge with the construction limits to give a natural appearance. The Contractor shall remove all stumps and roots within permanent rights -of -way. STRIPPING TOPSOIL: In general, where construction is not in roadways, it is carried across private and public rights -of -way, presently covered with topsoil. Before beginning construction, all topsoil within the work limits shall be stripped and stockpiled for reuse on the project. After trenching and pipe laying operation or construction of structures is completed, excess material shall be removed and area graded, provided with topsoil and seeded as specified in Section 02820. Ground surface shall be left in a condition equal to that which existed before construction. 3.17.89 T-14 02211 ROCK EXCAVATION WORK INCLUDED: The Contractor shall excavate rock, if encountered, to the lines and grades indicated on the plans or as directed by the Engineer, properly dispose of the rock, and backfill with acceptable material. Generally, rock in pipe trenches shall be excavated so as not to be less than 6" from the bottom of the pipe after it has been laid. Rock excavation shall mean boulders exceeding one cubic yard in volume or solid ledge rock, which, in the opinion of the Engineer, requires for its removal, drilling and blasting, wedging, sledging or barring. No hardpan, soft or disintegrated rock which can be removed with a pick; loose, shaken or previously blasted rock or broken stone, smaller than one cubic yard, in rockfilling or elsewhere; and no rocks exterior to the maximum limits of excavations approved by the Engineer, which may fall into the trench or other excavations, will be measured or allowed as rock excavation. BLASTING: In rock excavation, it is required that blasting shall be conducted with all possible care so as to avoid injury to persons and property; that rock shall be well covered with effective appliances; that sufficient warning shall be given to all persons in the vicinity of work before blasting; that care shall be taken to avoid damage to water pipes, gas pipes, sewers, drains or other structures; and that caps or other primers shall not be kept in the same place where dynamite or other explosives are stored. No blasting will be permitted under or adjacent to the State Highway unless special permission has been received from, and arrangements made with, the District Highway Engineer. The Contractor, in addition to observing all laws and ordinances relating to storage and handling of explosives, shall also conform to any further regulations which the Engineer may deem necessary in this respect. BLASTING RECORDS: The Contractor shall keep and submit to the Engineer an accurate record of each blast. The record shall show the general location of the blast, the depth and number of drill holes, the kind and quality of explosive used and other data required for a complete record. CLEARING OF BLASTED SURFACES: The Contractor will be responsible for clearing all blasted surfaces of loose rock as well as any objectionable foreign matter such as dirt, ice and scale prior to commencement of backfill or concrete or similar operations. DISPOSAL OF BLASTED ROCK: Blasted rock may be utilized as backfill material from an elevation two feet above the highest pipe to be installed in the excavation. Adequate amounts of finer material shall be included in the backfill to prevent the formation of voids. The Engineer reserves the right to limit the size and/or the amount of blasted rock used as backfill. Blasted rock not used as trench backfill shall be disposed of in a manner approved by the Engineer. NOTIFICATION OF HOME OWNERS: Any residence within 75 feet of a blasting area shall be given notice of the blasting 48 hours in advance. 3.20.89 T-1 5 02221 PIPELINE TRENCHES AND EXCAVATIONS FOR STRUCTURES WORK INCLUDED: The Contractor shall excavate to normal depth in earth for structures and trenches, backfill such excavations and grade and topsoil as necessary, as shown on the Contract Drawings or as directed by the Engineer. GENERAL: The trenches and other excavations shall be of sufficient width and depth at all points to allow all pipes to be laid, joints to be formed and structures and appurtenant construction to be built in the most thorough and workmanlike manner and to allow for sheeting and shoring, pumping and draining and for removing and replacing unsuitable material. Trenches and excavations shall be at least twelve inches wider than the outside dimensions of the structure they are to contain; trenches must not be unnecessarily wide so as to materially increase load on the pipe resulting from backfill. Bottoms of trenches and other excavations shall be carried to lines and shapes satisfactory to the Engineer. Bottoms of trenches for pipe shall be carried to a depth six inches greater than grade of pipeline, refilled to grade and bedded in the specified bedding method as detailed on the Contract Drawings. No tunneling will be permitted in place of open trench construction unless specifically authorized by the Engineer or required as specified under Section 01575, Work Within State Highway Rights -of -Way. Excavations adjacent to existing underground structures shall be done by hand so that foundations of structures shall not be disturbed. Wherever boulders or ledge rock are encountered in excavations for pipelines or structures, such boulders or ledge rock shall be removed to a depth of six inches below grade and space occupied by them shall be refilled to grade with the specified bedding material. Trenches shall be opened at such times and to such extent only as may be permitted by the Engineer. All driveways, crosswalks, sod, shrubs, trees and any other surface material affected by the work shall be carefully taken up and kept separate from the other excavated material. If suitable, excavated material shall be used for embankments, backfill and fill. Side slopes of excavations shall be less than the angle of repose of material excavated and shall be flat enough to prevent slides or cave-ins. Any excavation required as a result of slides or cave-ins shall be done by the Contractor at his own expense. Placement of bedding material shall not be done until the ground has been thoroughly dewatered and the Contractor is ready to install pipe or to construct foundations of various structures. LENGTH OF TRENCH ALLOWED TO BE OPEN: Length of trench allowed to be open shall be determined by the Engineer. The total running length of all work in each section shall be kept as short as is practical. Only that length of trench which can be protected by means of barricades, fences, and the like shall be allowed to remain open overnight. Unless specifically permitted by the Engineer, all trench excavations shall be backfilled prior to work shut -down for each weekend. MISCELLANEOUS EARTH EXCAVATION: Wherever required by the Engineer, the Contractor shall do earth excavation and backfilling in addition to the excavation and backfilling needed to construct the work required by the Contract Documents. Miscellaneous earth excavation and backfilling may be required by the Engineer for 3.28.89 T -1 6 test pits or for other unforeseen purposes. It may be necessary to do some of this work by hand. Excavation for deepening or widening of permanent drainage ditches shall be included in this item. Temporary or permanent relocation of streams shall not be considered under miscellaneous earth excavation. EARTH EXCAVATION BELOW GRADE: Wherever, in the opinion of the Engineer, material at or below grade line of pipe or structure plus depth of bedding material, is unsuitable for foundations, it shall either be excavated to such additional depths as directed by the Engineer and then refilled with crushed stone, well compacted or the Engineer may direct that a filter fabric as defined in section 02545 be utilized in lieu of deeper excavation. If filter fabric is utilized, it shall be installed and the excavation then brought to grade line for pipe trenches as shown on the Contract Drawings. UNAUTHORIZED EXCAVATION: If the bottom of any excavation has been removed below grade shown on the Contract Drawings, or that prescribed by the Engineer, it shall be brought to grade at the Contractor's expense by refilling with well compacted bedding material. EARTH EXCAVATION: Earth excavation includes all materials not classified as rock excavation and includes, but is not limited to curbs, sidewalks, pavement, peat, clay, silt, sand, muck, gravel, hardpan, loose shale, loose stone in masses, and boulders measuring less than one cubic yard in volume. 3.28.89 T -1 7 02265 BEDDING FOR PIPE AND BACKFILL WORK INCLUDED: Work of this section pertains to the backfill requirements and definitions of materials utilized in backfill operations which the Contractor must comply with. GENERAL: Each structure or portion of pipeline shall be inspected and approved for bedding and backfill before it is covered. Approval for bedding and backfill will not constitute final acceptance of the structure or pipeline. Any pipeline found to be out of line, deformed or damaged shall be re-laid or replaced without additional compensation. No backfilling will be allowed around manholes or other masonry structures until concrete or masonry has set sufficiently, as determined by the Engineer. All excess fill shall be removed from the construction site by the Contractor, unless directed otherwise by the Engineer, and disposed of in and acceptable manner. The Contractor is responsible for the location of a disposal site and obtaining any necessary permits associated with transportation to or disposal at the site. No excess fill may be stockpiled at the construction site. PIPE BEDDING: Pipe bedding shall be that material in the trench directly adjacent to the pipe. For all plastic piping used for gravity sewer, storm drain, water main or force main it shall extend from the bottom of the trench, 6" below the invert of the pipe, to a point 6" above the crown of the pipe and shall consist of crushed stone, sand or granular pipe bedding as detailed in the Contract Drawings. The pipe bedding shall be compacted to the minimum density specified on the plans in order to provide uniform support around the pipe. Specific information relative to the pipe bedding to be utilized on this project shall be found on the Contract Drawings and under the sections covering specific types of pipe materials, Sections 02520, 02555, 02556, and 02560 as appropriate. PIPE BACKFILL: Pipe backfill for this Project shall include all material placed above the pipe bedding to within 4" of finished grade or to road subgrade as shown on the Contract Drawings for pipes under roads and shall be selected compactable soil material from the excavation. Materials used for backfill shall be subject to the inspection and approval of the Engineer. If in the opinion of the Engineer the excavated material is unsuitable for backfill, the Contractor shall dispose of the material and substitute approved sand, gravel or other material in the amounts and proportions specified by the Engineer. Frozen material shall not be placed in backfills and backfills shall not be placed on frozen material. No stones in excess of 3" diameter shall be placed within 2 feet of the pipe. Larger stones may be used in the backfill provided care is taken that stones do not become nested and that all voids between stones are completely filled with fine materials. The size and quantities of stone used in backfill will be subject to approval by the Engineer. No backfill shall be dropped from a height of more than 3 feet from the top of the pipe. The backfill shall consist of two separate zones. The first zone shall extend from the top of the bedding material to a height of 24" above the crown of the pipe. Select excavated material with stones no larger than 3" diameter shall be placed in 6" lifts and compacted to a density of 95% of the maximum dry density using the Standard Proctor Test, according to ASTM D 698 or AASHTO T 99 (latest version). The materials shall be placed carefully so as not to disturb the pipe or cause it to break or misalign. 6.11.91 T -1 8 The second zone shall extend from the top of the first zone to within 4" of finished grade or to road subgrade. Material in this zone shall be select excavated material, placed in 6" lifts and compacted to a density of 95% of maximum dry density using the Standard Proctor Test, according to ASTM D 698 or AASHTO T 99 (latest version). Suitable cohesive soil can be backfilled in this zone and compacted using impact type equipment, pneumatic tampers, engine or self-propelled, sheepsfoot rollers on wide trenches or other suitable equipment, providing the 95% compaction requirement is met. In cohesionless soils, vibratory plates in confined areas and vibratory rollers in unconfined areas can be utilized, providing the specified degree of compaction is met. Granular cohesionless material may, in some cases and upon approval of the Engineer, be compacted using water jetting or immersion type vibrators with flooding and pooling. The entire trench width shall be uniformly compacted and brought to grade. The remaining 4" of trench between the top of the backfill and the final surface, on areas to be seeded or sodded, shall be backfilled with topsoil, compacted and finished in accordance with Section 02820, Final Grading, Topsoiling and Seeding of these Specifications. If the area is to be paved, the upper zone must be constructed in accordance with Sections 02649 and 02650 or 02651. FIELD DENSITY TESTING: Unless specified elsewhere, the Engineer shall conduct field density tests to verify that the compaction requirements of this section have been met. Material having a gradation with more than 30% retained on the 3/4" sieve will generally be considered too coarse for satisfactory density testing and therefore shall be replaced with finer material and recompacted before retesting. Additional field tests necessary, because of failure of the first test to comply with stated density requirements, shall be performed by the Engineer and charged against the Contractor at $75 per each additional test. The field density determination will be made by the Engineer in accordance with Standard Method of Testing for Density of Soil In -Place by the Sand Cone Method, ASTM D 1556 (AASHTO T 191) or using Nuclear Methods in accordance with ASTM D 2922 or AASHTO T 238. The Contractor shall notify the Engineer at least 24 hours in advance of need for compaction testing. BACKFILL FOR STRUCTURES: Backfill for structures shall meet the requirements for granular backfill, with all lifts being no more than 6" thick and each lift compacted to not less than 95% of the maximum dry density as per AASHTO T 99 (Standard Proctor ASTM D 698). The field density determination will be made by the Engineer in accordance with Standard Method of Test for Density of Soil In -Place by the Sand Cone Method, ASTM D 1556 (AASHTO T 191) or using Nuclear Methods in accordance with ASTM D 2922 or AASHTO T 238. All materials will be subject to the approval of the Engineer. If requested by the Engineer, the Contractor shall submit samples of the material for sieve analysis and density tests. The backfill shall be thoroughly compacted as required, using power rollers or other motorized vehicular equipment. In places close to walls, footings, utility lines, etc., where larger equipment cannot properly operate, hand tamping with pneumatic or mechanical vibrators or rammers equivalent to Barco Rammer and weighing not less than 150#, shall be used. The soil shall contain the proper moisture content to achieve the required 6.11.91 T -1 9 compaction but no standing water will be allowed during compaction. No backfilling will be permitted against foundation walls until floor slabs at both top and bottom of walls have been placed and cured, or until walls have been adequately braced. Where backfill occurs on both sides of a wall, levels of backfill on each side shall be kept approximately equal at all times. Where structures must be placed on fill, all areas within an exterior 5' perimeter of the building foundation shall be filled with suitable backfill material, such as granular backfill, to an elevation three feet above the elevation for the proposed footings and shall be compacted in 6 inch lifts as heretofore noted. The backfill material shall then be re - excavated to a depth of 12" below the proposed footing. Granular backfill shall then be placed in the excavation, compacted in two Six-inch lifts to 95% of Standard Proctor Density and the footings construction begun. If field density tests indicate compaction to less than 95% of optimum dry density, the Contractor shall improve compaction by applying more mechanical effort or adding water, or both, or, if moisture content of soil is too high, by allowing soil to dry to optimum moisture content before applying more mechanical effort, or if necessary, removing and recompacting until further tests indicate a dry density of 95% of laboratory test optimum. Additional field tests necessary, because of failure of the first tests to comply with 95% density requirement, shall be made by the Engineer and charged against the Contractor at $75 per each additional test. The Contractor shall notify the Engineer at least 24 hours in advance of need for compaction testing. MATERIAL SPECIFICATIONS: This section pertains to the specifications which the Contractor must comply with regarding the quality and type of material to be utilized for fill, backfill and embankment operations. GRANULAR PIPE BEDDING AND BACKFILL: Where reference is made to this material either on the plans or within these specifications, it shall mean a well graded material free from debris, stumps, branches, vegetation, pavement and similar objectionable material. It shall meet the gradation requirements for granular backfill defined as follows: Sieve Designation 3" 2 1 /2" No. 4 No. 100 No. 200 Percentage by Weight Passing Total Sample 100% 90% - 100% 50% - 100% Square Mesh Sieves Sand Portion 100% 0 - 18% 0 - 8% GRAVEL BORROW: Where reference is made to this material either on the plans or within the specifications, it shall mean a material reasonably free from silt, loam, clay or organic matter containing no more than 8% by weight passing the #200 sieve. It shall be uniformly graded and the largest stone shall not exceed 6" in any dimension. 6.11.91 T-20 SAND: Sand shall consist of clean, hard durable grains, uniformly graded from dense to fine and shall be free from injurious amounts of silt, loam, clay, organic matter or other harmful substances. It shall meet the gradation requirements for sand defined as follows: Sieve Designation 1/2" No. 4 No. 10 No. 40 No. 200 Percentage by Weight Passing Total Sample 100% 90 - 100% 60 - 90% 20 - 40% 0 - 12% CRUSHED STONE: Crushed stone or screened gravel, uniformly graded from 3/4" to 1/4" and of satisfactory quality shall be furnished to replace unsuitable material excavated below grade, to bed pipe, to replaced unauthorized excavation and to be used elsewhere as shown on the Contract Drawings or as required by the Engineer. It shall be clean, hard, durable and free from dust, loam, clay or organic matter and shall be well compacted in place. 6.11.91 T-21 02530 DEWATERING WORK INCLUDED: The work includes all work necessary to provide a stable work area for installation of piping and structures and protecting the work from damage caused by water. The Contractor shall at his expense remove by pumping, draining, bailing or otherwise, any water which may accumulate or be found in trenches and other excavations made under this contract, and shall form all pump wells, sumps, dams, flumes, or other works necessary to keep trenches and other excavations entirely clear of water while pipe lines and structures and their foundations are being built. Newly made masonry shall be protected from damage resulting from dewatering work, by use of canvas, tar paper, or by such other sufficient methods as may be approved by the Engineer. The Contractor shall at all times, have sufficient pumping machinery so that structures will be built in the dry. Excavation and trenches shall be dewatered where necessary by use of stone drains, pipe underdrains or by use of well points. Pipe used for underdrains shall be of ample size to dewater trench for proper drainage during construction work. Pipe shall be asbestos -cement pipe, corrugated metal or PVC, as hereinafter specified. Areas to be excavated and trenches shall be excavated to such additional depth as required to lay under drain in a bed of clean gravel or broken stone. If a well point system is used for dewatering excavation, well points shall be spaced and driven to a depth to thoroughly dewater the construction area. All dewatering, regardless of method, shall be accomplished so that adequate bearing capacity of the soil is reached to allow stable support of pipe lines, structures, and foundations. Removal of visual running water in the trench without provision of stable trench bottom support for piping or structures does not constitute adequate dewatering. The Contractor shall furnish, install and maintain, all drainage systems and pumping equipment necessary to keep ground water level at an elevation low enough so that no structures to be built under this Contract shall move. The Contractor shall construct noise abatement structures around all pumps or machinery that must run after working hours. These structures must provide adequate sound absorption to prevent disturbance of the public. Water from trenches and excavations shall be disposed of in such a manner as will not cause injury to public health nor to public or private property, nor to work completed or in progress, nor to surface of highways, nor cause any interference with use of same by the public. No silty, brackish or turbid water from trenches and excavations shall be allowed to discharge directly to a stream or natural drainage course leading to a stream. The turbid water can be discharged onto the ground providing the subsequent runoff does not create a turbid situation in the stream. Where ground application creates or is likely to create turbid stream conditions, the Contractor will be required to detain the trench excavation water in a temporary sedimentation pond or a similar method acceptable to the Engineer. Upon completion of construction, all temporary sedimentation ponds will be filled with native material and the site restored to its original condition. 5.10.89 T-22 02560 SEWER PIPE LINES AND RELATED CONSTRUCTION WORK INCLUDED: The Contractor shall furnish and install all pipes, fittings and other materials necessary for the installation of gravity sewers, force mains, and all appurtenant construction related thereto including chimneys, service connections, thrust blocks and other related items as indicated on the Contract Drawings and as specified herein. The work shall also include testing and placing the system into satisfactory operation. TYPES OF PIPE: Types of pipe which shall be used for the various parts of work are as follows: (a)PVC solid wall pipe meeting ASTM Specifications D 3034 or F 679 or cast iron pipe or an approved equal. (b) Force mains shall be SDR - 21 PVC. Unless the plans require a particular type of pipe material, the Contractor shall have the option of utilizing any one of the gravity sewer pipe materials listed in this section providing the pipe utilized meets or exceeds the strength and other class requirements shown on the Contract Drawings. When a pipe material is specifically noted on the Contract Drawings, such as 18 inch Ductile Iron Class 52, the Contractor shall not have the option of utilizing any other pipe material. Pipe items under this category shall be included in the Schedule of Prices as a separate item. PVC SEWER PIPE: PVC sewer pipe shall conform in all respects to the latest revision of ASTM Specification D 3034, or F 679, Type PSM Polyvinyl Chloride (PVC) Sewer Pipe and Fittings, SDR 35. Wall thickness of all PVC pipe shall meet ASTM Specifications for SDR 35 pipe. All pipe and fittings shall be clearly marked as follows: Manufacturer's Name and Trademark. Nominal Pipe Size Material Designation 12454C PVC Legend "Type PSM SDR 35 PVC Sewer Pipe" or "PS 41 PVC Sewer Pipe" Designation ASTM D 3034 or F 679 Joints shall be push -on type using elastomeric gaskets, and shall conform to ASTIVI D 3212. The gaskets shall be factory installed. PVC pressure sewer pipe shall conform in all respects to the latest revision of ASTM Specification D 2241 for Polyvinyl Chloride (PVC) Pressure Pipe and Fittings. All pipe and fittings shall be clearly marked as follows: Manufacturer's Name and Trademark. Nominal Pipe Size 6.11.91 T -2 3 Material Designation 12454A PVC or 12454B PVC Standard pipe dimension ratio - SDR 21 Designation ASTM D 2241 Joints shall be push -on type using elastomeric gaskets except for joints at fittings which may be solvent weld. The gaskets shall be factory installed. Gravity sewer pipe shall be furnished in nominal 20 foot lengths. Sufficient numbers of short lengths and fully machined fittings shall be provided for use at structures, chimneys, and connections. All connections will require the use of manufactured fittings, field fabricated, saddle type connections will not be considered acceptable. Pressure sewer pipe shall be supplied in nominal 20 foot lengths. Fittings for all connections shall be either Schedule 80 solvent weld or standard push -on fittings with elastomeric gaskets of the same manufacture and SDR as the pipe. Any pipe or fitting have a crack, or other defect, or which has received a severe blow shall be marked rejected and removed at once from the work site. All field cuts are to be made at 90 degrees to the pipe centerline. The contractor shall bevel the cut end to the same angle as the factory bevel, remove all interior burrs, measure and place a homing mark on the pipe before assembling. Prior to installation, the Contractor shall arrange for the services of a qualified factory representative to be on site in the presence of the Engineer to provide thorough instructions to the Contractor and installation crews on the proper installation techniques for PVC pipe. The factory representative shall be knowledgeable in the principles of flexible conduit design and installation of PVC pipe and, after proper instructions, shall review the installation technique of the Contractor and crews to ensure satisfactory installation and embedment procedures. Installation shall be in accordance with "Recommended Standards for Sewage Works," 1978 edition (Ten States Standards). Gravity sewer pipe installed under this specification shall be installed so that the initial deflection, measured as described below, shall be less than 5%. The manhole water stop gasket and stainless steel clamp assembly must be approved by the Engineer prior to the installation of any pipe. The Contractor will submit certification that the materials of construction have been sampled, tested, inspected and meet all the requirements including wall thickness in accordance with ASTM D 3034 or ASTM F 679 for all pipe and fittings to be included in the project work. PVC pipe shall not be installed when the temperature drops below 32 degF or goes above 100 degF. During cold weather, the flexibility and impact resistance of PVC pipe is reduced. Extra care is required when handling PVC pipe during cold weather. LAYING PIPE: Pipe shall be laid upon a trench bottom and bed prepared as indicated on the Contract Drawings as specified in this section. All pipe shall be carefully cleaned 6.11.91 T-24 just before laying. Each pipe shall be laid true to line and grade so laid as to form a tight joint with next adjoining pipe and to bring inverts continuous. Where the plans require service connections, Y branches with 6 inch spurs shall be installed in the sewer main. Flexible pipe gaskets are required as per this section. No walking on or working over pipes after they are laid except as may be necessary in making joints, in placing cradles and in tamping backfill material will be permitted until pipes are backfilled as specified to a depth of 12 inches. During construction all openings to pipe lines shall be protected from entrance of earth or other material. Open ends of branches and pipes when completed shall be sealed with stoppers or by equally effective methods. Where new pipes are to joint existing ones, the Contractor shall do such work as is necessary to make connections. PIPE BEDDING AND BACKFILL: Pipe bedding and backfill shall be as indicated in Section 02265, with the specific bedding material for various types of pipe outlined as follows: PIPE BEDDING FOR PVC GRAVITY SEWER: Bedding material shall consist of crushed stone from the trench bottom, six inches below the pipe invert, to 6 inches above the crown of the pipe. Backfill shall then be placed in accord with the Section 02265. BEDDING FOR PVC FORCE MAINS: Bedding material shall consist of sand or granular pipe bedding from the trench bottom, 6" below the invert of the pipe to 6" above the crown of the pipe. Backfill shall then be placed in accordance with Section 02265. For pipe materials different from those listed, the Engineer will make a determination as to the equivalent level of bedding construction. CONCRETE CRADLE AND ENCASEMENT FOR PIPE: Where required on the plans or as directed by the Engineer a concrete cradle shall be used to bolster and strengthen pipe. Where required on the plans or as directed by the Engineer, concrete encasement of sewer will be made to protect nearby wells or waterlines, for stream crossings or for similar purposes. All concrete will be Class B as defined in Section 03300 of these specifications and will meet the requirements of that section. FROST PROTECTION FOR SHALLOW SEWERS: Sewers with less than 5 1/2 feet of cover over the crown or where indicated on the plans shall be protected against freezing by installation of 2" thick Styrofoam SM insulating sheets with a width of 3 feet or twice the pipe diameter, which ever is greater. The sheets shall be placed 6" above the crown of the sewer after compaction of the 6" lift immediately above the crown has been made. Care shall be exercised by the Contractor during backfill and compaction over the styrofoam sheets to prevent damage to the sheets. Styrofoam SM sheets shall meet the compressive strength requirements of ASTM D 1621 and shall be as manufactured by Dow Chemical Company, Midland Michigan. TESTS FOR MANHOLES: The exfiltration leakage allowance out of manholes shall be no greater than 1 gallon per day per vertical foot to depth. The manhole shall be filled with water to a point 1 foot above the highest joint between manhole sections. In areas 6.11.91 T -2 5 of high ground water, there shall be no visible leakage due to infiltration. Vacuum testing of manholes shall also be considered acceptable using the following guidelines: The test shall be done after assembly of the manhole. The manhole to pipe connection shall be flexible. A 60 inch/lb. torque wrench shall be used to tighten the external clamps. All lift holes shall be plugged with a non shrink mortar, as approved by the engineer. The seal between manhole sections shall be approved, preformed flexible mastic per ASTM C 923. The completed manhole shall not be backfilled prior to testing. Manholes which have been backfilled shall be excavated to expose the entire exterior prior to vacuum testing or the manhole shall be tested for leakage by means of a hydrostatic test. Interior piping and plugs shall be adequately braced to prevent movement. A vacuum of 10" of Hg shall be drawn within the manhole. The manhole shall pass the test if the vacuum remains between 10" Hg and 9" Hg for at least two minutes. It is noted that all existing sanitary sewers shall be kept operational until new work has been tested and approved by this Engineer. At such time existing sewers and sewer services shall be connected to the new sewers. LEAKAGE TEST FOR FORCE MAIN: The pressure and leakage tests shall be performed as a combined test which shall be for a duration of two hours at 150% of normal operating pressure in the line at the lowest elevation. Leakage shall be defined as the quantity of water that must be supplied into the newly laid pipe to maintain the leakage test pressure after the pipe has been filled and the air has been expelled. No installation will be accepted if the leakage is greater than that determined by the formula: L = SD (P1.5 133,200 Where L is allowable leakage in gallons per hour,S is the length of pipe being tested, D is the nominal diameter of the pipe in inches, and P is the average test pressure in pounds per square inch gauge. Should any section of pipe fail the leakage test, the Contractor shall do everything necessary to locate and repair or replace the defective pipe, fittings or joints at no expense to the Owner. If for any reason, the Engineer should alter the foregoing procedures, the Contractor shall remain responsible for the tightness of the line within the above requirements. CLEANING OF PIPE LINES AND APPURTENANCES: Upon completion of construction, all dirt and other foreign material shall be removed from pipe lines and their appurtenant construction. No materials shall be left in the pipe lines to impede normal flow through them. 6.11.91 T-26 MANHOLES AND APPURTENANCES: Where indicated on the plans the Contractor shall furnish and install manholes and drop manholes which meet the requirements of Section 03401 of these specifications. All manhole frames and covers shall meet the requirements of Section 05550 of these Specifications. CLEANOUTS FOR SEWERS: Cleanouts for gravity sewers and force main shall be provided at locations indicated on the plans or as directed by the Engineer. Cleanouts shall be constructed of cast-iron pipe or as shown on the Contract Drawings. All cleanout frames and covers shall meet the requirements of Section 05550 of these Specifications. THRUST BLOCKS AND ANCHORS: Concrete thrust blocks or anchors shall be placed at bends, tees, fittings and other locations on the force main as shown on the Contract Drawings or as directed by the Engineer. Concrete for thrust blocks and anchors shall be Class B Concrete. Steel rods and clamps as required shall be galvanized, rust proof or painted. Thrust blocks and anchors shall be placed between the fitting and the trench wall with bearing area on undisturbed earth. Bearing area shall be as shown on the Contract Drawings or as required by the Engineer. 6.11.91 T-27 02650 BITUMINOUS CONCRETE PAVEMENT GENERAL: This work shall consist of one or more courses of bituminous mixture constructed on a prepared foundation in accordance with the Contract Drawings and Section 02265 or 02649 of these specifications. The pavement shall be placed in close conformity with the lines, grades, thicknesses and typical cross -sections shown on the plans or established by the Engineer. The bituminous concrete shall come from a recognized plant approved by the Engineer. If the paving is to be performed by a sub -contractor, the sub -contractor must be approved by the Engineer. One week prior to the placing of pavement the Contractor will contact and arrange to meet with the Engineer and paving sub -contractor to review the paving requirements prior to paving. The Contractor shall be responsible for construction of all temporary and permanent bituminous, concrete or gravel surfaces affected or damaged by the construction. All temporary surfaces shall be maintained until permanent surfaces are constructed and accepted by the Engineer upon contract completion and the attainment of any guarantee period herein stated. REPAIR OF BITUMINOUS CONCRETE: Where trench construction is in bituminous concrete pavement, and as scheduled in the general contract notes, there shall be placed over the trench, as directed by the Engineer, a permanent bituminous base course. This pavement shall be 1 1/2" bituminous binder course, meeting the requirements of this Section for Type II pavement and shall be placed over backfill prepared as required in Section 02265 of these specifications. The base course shall be placed within 7 days of completion of backfilling. The Contractor shall maintain trench areas until the bituminous wearing course is laid. At the discretion of the Engineer, a fillet of temporary cold patch may be required to fair the bump at edges of one or both sides the trench. Pavement shall extend at least 12" over onto undisturbed, existing subbase material on each side of trench for entire trench length. In replacing paving, all rough or ragged edges of old paving shall be cut away and smoothed up to give a firm, clean surface to bond to. The clean surface of old paving, to which new paving is to be bonded, shall be coated with Asphalt Emulsion RS-1 to improve bond. Where the outside edge of excavation comes within 3 feet of the outside roadway edge of existing pavement, the Contractor shall be required to remove all pavement from the edge of excavation to the outside roadway edge of existing pavement and replace the excavated pavement with new bituminous base course. No payment outside the payment limits shall be made for this work. Within 14 days of completion of base course, a bituminous wearing course shall be laid over the Bituminous base course to the limits of the bituminous base course, unless 6.11.91 T-28 directed otherwise by the Engineer. All irregularities or damaged areas of the base course shall be repaired to the satisfaction of the Engineer prior to application of the wearing course. All manhole frames, valve boxes, etc., shall be set to proper grade before placing the bituminous wearing course. This pavement shall be a 1" Type III or Type IV surface course as specified in this section and as designated on the Contract Drawings. The Contractor shall remove and reconstruct existing roadway and driveway pavements as shown on the Plans. New roadway and driveway pavements shall be constructed over excavations to match existing road and drive conditions and surfaces after the backfill has been thoroughly compacted. Bituminous roadways and drives shall be cut with an appropriate cutting tool so that the edges are vertical and straight. Where new curbs are installed adjacent to a paved roadway, a paved shoulder or in a gravel or dirt shoulder, bituminous concrete pavement and subbase shall be installed from the edge of the existing pavement to the face of the new curb as shown on the Plans. All work is to be done as directed by the Engineer. At the completion of paving, all paved areas shall be smooth and free of pockets with sufficient slope to ensure drainage. The required roadway and driveway improvements shall be completed promptly upon completion of the curb and sidewalk construction. Where bituminous concrete paving meets curbing or sidewalks they shall be coated with Asphalt Emulsion RS-1. Care shall be taken to keep asphalt materials off visible areas of newly constructed curbs and sidewalks. All asphalt stains shall be removed . by the Contractor at no additional cost to the Owner. In addition, the Contractor will be responsible for re-establishing all pavement markings as made necessary by the construction, at no additional cost to the contract. COMPOSITION OF MIXTURE: The materials shall be combined and graded to meet the following composition limits by weight: Sieve Size Tye Ty ell Type III Tyke IV Tyne V. 1 1 /2" 100 1" 95-100 100 3/4" 74-86 95-100 100 1/2" 60-80 76-88 95-100 100 3/8" -- 62-82 78-90 95-100 100 #4 35-60 44-62 54-75 62-80 85-100 #8 25-45 30-48 39-60 39-60 68-88 #16 -- 20-38 24-45 24-45 45-67 #30 10-25 13-30 14-35 14-35 27-53 #50 -- 6-22 6-24 6-24 13-40 #200 0-4 0-4 0-4 0-4 0-7 Total Agg. 94-96 93-95 92-94.5 92-94.5 91-93 6.11.91 T-29 Bitumen (% of Total Mix) 4-6 5-7 5.5-8 5.5-8 7-9 The grade of Asphalt Cement shall be AC 10 unless otherwise specified in the Contract or Contract Drawings. The grade of asphalt may be changed by the Engineer upon one week's prior notice to the Contractor. The Engineer may require a certification from the supplier of the mix being furnished. DESIGN CRITERIA: The materials shall be combined and graded to meet the following criteria based on the Marshall Test, 50 blows per side: Property Criteria Air Voids*, Types II, III, & IV 3.0%-5.0% Voids in Mineral Aggregate Type II 14% minimum Type III 15% minimum Type IV 16% minimum Stability 1,000 lbs. min. Flow .08"-.20" The percent of air voids of the mixture shall be calculated by the following formula: F=100 (R-Pl R where F = % air voids in the compacted mixture R = Maximum specific gravity of uncompacted mixture (AASHTO T 209 or ASTM D 2041) P = Bulk specific gravity of compacted mixture (AASHTO T 166 (B) ) WEATHER LIMITATIONS: Bituminous material shall not be applied between November 1, and May 1. The courses shall not be placed when the air temperature at the paving site in the shade and away from artificial heat is below 400 F for courses 1 1/4" or greater in compacted thickness or below 500 F for courses less than 1 1/4" in compacted thickness. When it is in the public interest for servicing traffic, the Engineer may adjust the air temperature requirements or extend the dates of the paving season. Hauling Equipment: Trucks used for hauling bituminous mixtures shall have tight, clean, smooth metal beds which have been thinly coated with an oil or soap solution to prevent the mixture from adhering to the beds. Each truck shall have a cover of canvas or other suitable material of such size sufficient to protect the mixture from the weather. When necessary to assure delivery of material on the road at the specified temperature, truck beds shall be insulated and covers shall 6.11.91 T-30 be securely fastened. PLACING EQUIPMENT: The bituminous concrete paver shall be a self-propelled unit with an activated screed or strike -off assembly, capable of being heated if necessary and will be capable of spreading the mixture without segregation for the widths and thicknesses required. The screed shall be adjustable to provide the desired cross - sectional shape. The finished surface shall be of uniform texture and evenness and shall not show tearing, shoving or pulling of the mixture. The machine shall at all times be in good mechanical condition and shall be operated by competent personnel. ROLLERS: Rollers shall be in good mechanical condition, operated by competent personnel capable of reversing without backlash, and operated at speeds slow enough to avoid displacement of the bituminous mixture. The weight of the rollers shall be sufficient to compact the mixture to the required density without excessive crushing of the aggregate. They shall be equipped with tanks and sprinkling bars for wetting the rolls or tires. Two axle tandem rollers shall have a gross weight of not less than 8 and not more than 12 tons and shall be capable of providing a minimum compactive effort of 250 pounds per inch of width of the drive roll. All rolls will be at least 42 inches in diameter. Three axle tandem rollers shall have a gross weight of not less than 8 and not more than 20 tons and shall be capable of providing a minimum compactive effort of 250 pounds per inch of width of the drive roll. The roller shall be equipped with a locking device to allow the center axle roll to move independently or be secured in a locked position. Pneumatic -tired rollers shall be self-propelled and equipped with a minimum of seven wheels situated on the axles in such a way that the rear group of tires will not follow in the tracks of the forward group, but shall be spaced so that a minimum tire path overlap of 1/2 " is obtained. The wheels on at least one of these axles will be capable of oscillating in a vertical direction, either individually or in pairs. The tires shall be of equal size with a minimum size of 9 x 20 - 12 ply. The compressor for inflation of tires shall be capable of inflating the tires so that the air pressure between tires does not vary more than five pounds per square inch per tire. The tires shall be smooth and capable of being inflated to a pressure necessary to provide ground contact pressure of at least 80 pounds per square inch per tire. The Contractor shall provide a gauge at all times to enable the Engineer to check tire pressures. Appropriate charts or tables shall be posted on each roller showing the contact areas and contact pressures for the full range of tire inflation pressures and wheel loadings for the type and size roller and tires involved. SURFACE TREATMENT PRIOR TO PAVING: When new bituminous concrete is to be placed over existing bituminous concrete or cement concrete surfaces, they shall be cleaned and sprayed with Emulsified Asphalt RS-1 before placing of the new bituminous concrete. The emulsified asphalt treatment will also be required when the bituminous concrete or cement concrete surface to be paved has been placed in the same construction season (May through November of the same year). The emulsion shall be applied under pressure at the rate of 0.01 to 0.03 gallons per square yard. The application shall be be made just prior to the placement of the bituminous concrete 6.11.91 T-31 mixture but shall progress sufficiently ahead of the paving so that the surface to be paved will be "tacky". The entire surface to be paved shall be covered with a uniform film thickness of emulsified asphalt at the application rate described above. All longitudinal and transverse joints and all cracks shall be sealed by the application of an approved joint sealing compound before spreading the mixture upon a portland cement concrete surface. All excess bituminous material shall be removed from joints and cracks prior to placing the bituminous concrete mixture. Any large cracks in a bituminous surface shall be thoroughly cleaned and filled with a bituminous material or mixture approved by the Engineer. Contact surfaces such as curbing, gutters and manholes shall be painted with a thin , uniform coat of Emulsified Asphalt, RS-1, immediately before the bituminous concrete mixture is placed against them. If there are deficiencies that require corrective action in the base course constructed as part of the Contract, a bituminous concrete mix which meets the approval of the Engineer shall be used to bring the base course to the designed grade and contour, at the expense of the Contractor. Where bituminous concrete is used to resurface existing pavements and the existing pavement contains irregularities, depressions or waves, such deficiencies shall be eliminated by the use of bituminous material for leveling to bring the existing base to uniform section and grade before placing of the required courses of bituminous concrete. PLACING AND FINISHING: The bituminous mixture, at the time of discharge from the haul vehicle, shall be within 100 F of the midpoint of the compaction temperature for the approved mix design. The Contractor shall protect all exposed surfaces, which are not to be treated, from damage during all phases of the paving operation. The bituminous mixture shall be placed and finished with the specified equipment and struck off in a uniform layer to the full width required and of such depth that each course, when compacted, shall have the required thickness and shall conform to the grade and elevation specified. Bituminous pavers shall be used to distribute the mixture over the entire width or over such partial width as may be practical. When operating in tandem on multi -lane paving, the pavers shall be of the same type and characteristics. The direction of paving of parking areas or other paved areas without a crown shall be parallel to the direction of drainage. On areas where irregularities or unavoidable obstacles make the use of mechanical spreading and finishing equipment impractical, the mixture shall be spread, raked and luted by hand. No material shall be produced so late in the day as to prohibit the completion of 6.11.91 T -3 2 spreading and compaction of the mixture during daylight hours. Trucking over material already placed will not be permitted until the material has been thoroughly compacted. The Engineer reserves the right to require that all work adjacent to the pavement, such as guardrail, clean-up and turf establishment, will be completed prior to placing the wearing course when such work could cause damage to the pavement. When bituminous concrete is to be placed on a bridge deck which has been waterproofed, a rubber -tired paver shall be used to place the bottom course of pavement. Suitable aprons to transition approaches where required shall be placed at side road intersections and driveways as directed by the Engineer. COMPACTION: Immediately after the bituminous mixture has been spread, struck off and surface irregularities adjusted, it shall be thoroughly and uniformly compacted by rolling. The surface shall be rolled when the mixture is in the proper condition and when the rolling does not cause undue displacement, cracking or shoving. The number, weight and type of rollers furnished shall be sufficient to obtain the required compaction while the mixture is in a workable condition. Generally, one breakdown roller will be needed for each paver used in the spreading operation. Leveling courses shall be compacted using a self-propelled pneumatic -tired roller unless otherwise directed by the Engineer. On binder or wearing course, the initial or breakdown rolling shall be done by using a two -axle tandem roller; intermediate rolling by using a two -axle tandem roller or self-propelled pneumatic -tired roller; and final rolling by using an additional two or three -axle tandem roller. To prevent adhesion of the mixture to the rolls, they shall be kept properly moistened with water or water mixed with very small quantities of detergent or other approved material. Excess liquid will not be permitted. Along forms, curbs, headers, walls and other places not accessible to the rollers. the mixture shall be thoroughly compacted with hot or lightly oiled hand tampers, smoothing irons or with mechanical tampers. On depressed areas, a trench roller may be used or cleated compression strips may be used under the roller to transmit compression to the depressed area. Other combinations of rollers and/or methods of compacting may be used if approved in writing by the Engineer, providing the density requirements are met. Unless otherwise directed, the longitudinal joint shall be rolled first and then rolling shall begin at the low side of the pavement and proceed towards the center or high side with lapped rollings parallel to the centerline. the speed of the roller shall be slow 6.11.91 T-33 and uniform to avoid displacement of the mixture and the roller should be kept in as continuous operation as practical. Rolling shall continue until all roller marks and ridges have been eliminated. The specific gravity of the compacted pavement shall be not less than 97 percent of the specific gravity of the corresponding daily job sample except as follows: Pavement placed directly on subbase - 95 percent Overlay paving less than 1 1/4" in compacted thickness - 95 percent Any mixture that becomes loose and broken, mixed with dirt, or is in any way defective shall be removed and replaced with fresh hot mixture, which shall be compacted to conform with the surrounding area. Any area showing an excess or deficiency of bitumen shall be removed and replaced. These replacements shall be at the Contractor's expense. The Contractor shall replace the pavement with like material where cores are removed during hot mix operations. These replacements shall be at the Contractor's expense. JOINTS: Joints between old and new pavements or between successive day's work shall be made so as to insure a thorough and continuous bond between the old and new mixtures. Whenever the spreading process is interrupted long enough for the mixture to attain its initial stability, the paver shall be removed from the mat and a joint constructed. Butt joints shall be formed by cutting the pavement in a vertical plane at right angles to the centerline, at a location approved by the Engineer, where the pavement has a true surface as determined by the use of a straightedge, The butt joint shall be thoroughly coated with Emulsified Asphalt, Type RS-1, just prior to depositing the paving mixture. Unless otherwise noted by the Engineer or on the plans, transverse paving joints in wearing courses shall be butt type. Where directed by the Engineer, tapered joints shall be formed by ramping down the last 18 to 24 inches of the course being laid to match the lower surface. Care shall be taken in raking out and discarding the coarser aggregate at the low end of the taper, and in rolling the taper. The taper shall be thoroughly coated with Emulsified Asphalt, Type RS-1, just prior to resuming paving. As the paver places new mixture on the taper, an evenly graduated deposit of mixture will compliment the previously made taper. Shovels may be used to add additional mixture if necessary. The joint shall be smoothed with a rake, coarse material discarded, and properly rolled. Longitudinal joints that have become cold shall be coated with Emulsified Asphalt, Type RS-1, before the adjacent mat is placed. If directed by the Engineer, they shall be cut back to a clean vertical edge prior to painting with the emulsion. 6.11.91 T-34 Unless otherwise directed by the Engineer, longitudinal joints shall be offset at least 6 inches from any joint in the lower courses of pavement. Transverse joints shall not be constructed nearer than 1 foot from the transverse joints constructed in lower courses. All joints, cracks, and seams shall be sealed with a hot poured bituminous sealant in accordance with Section 02654 of these Specifications. SURFACE TOLERANCES: The surface will be tested by the Engineer using a 16 foot straight -edge at selected locations parallel with the centerline. Any variations exceeding 3/16 of an inch between any two contacts shall be satisfactorily eliminated. A 10 foot straight -edge may be used on a vertical curve. The straight -edges will be provided by the contractor. On parking area surfaces or other paved areas that have no crown, the surface will be tested parallel to the drainage slope of the area. Traffic Control: Whenever traffic must be maintained during a paving operation, uniformed traffic officers or flagmen shall be stationed at each end of the section being paved and at such other locations as may be required by the Engineer. 6.11.91 T-35 02652 REPLACEMENT OF BITUMINOUS, CONCRETE OR GRAVEL SURFACES WORK INCLUDED: The Contractor shall be responsible for construction of all temporary and permanent bituminous, concrete or gravel surfaces affected or damaged by the construction. All temporary surfaces shall be maintained until permanent surfaces are constructed and accepted by the Engineer upon contract completion and the attainment of any guarantee period herein stated. BITUMINOUS CONCRETE SURFACES: Replacement of bituminous concrete surfaces necessitated by this construction shall be done according to section 02650 of these specifications. BITUMINOUS CONCRETE SIDEWALK: Existing bituminous concrete sidewalks, removed or damaged during construction, shall be replaced unless otherwise ordered by the Engineer. Depths of bituminous concrete and gravel shall be as shown on the Contract Drawings, and work shall conform to section 02630 of these specifications. ADDITIONAL INSTRUCTIONS: The Contractor shall remove and reconstruct existing roadway and driveway pavements as shown on the Plans. New roadway and driveway pavements shall be constructed over excavations to match existing road and drive conditions and surfaces after the backfill has been thoroughly compacted. Bituminous roadways and drives shall be scored with an appropriate cutting tool so that the edges are vertical and straight. At the completion of paving, all paved areas shall be smooth and free of pockets with sufficient slope to ensure drainage. The required roadway and driveway improvements shall be completed promptly upon completion of the curb and sidewalk construction. Prior to replacement of bituminous pavement in roadways and driveways, all edges of existing bituminous pavement and the concrete curbs, where applicable and sidewalks shall be painted with RC-1 Emulsified Asphalt as specified in section 02650 of these specifications. Asphalt concrete shall be placed in an approved manner and rolled. Care shall be taken to keep asphalt materials off newly constructed curbs and sidewalks. All asphalt stains shall be removed by the Contractor at no additional cost to the Owner. In addition, the Contractor will be responsible for re-establishing all pavement markings as made necessary by the construction, at no additional cost to the owner. 01.11.90 T-36 02820 FINAL GRADING, TOPSOILING AND SEEDING WORK INCLUDED: The Contractor shall be responsible for final grading, topsoiling, seeding, and establishing a healthy grass within the contract limits or as directed by the Engineer. Restoration shall occur within 7 days. GRADING AND TOPSOILING AND SURFACE PREPARATION: Where required, areas to be finished with topsoil shall be cleaned of all stones, debris and other kinds of rubbish. After areas have been brought to proper subgrade and approved by the Engineer, topsoil shall be spread to a depth of 3", due allowance being made for settlement. Topsoil shall not be hauled over, tramped over or packed in, in any way and shall be left in a loose and friable condition. All topsoil shall be free from subsoil, gravel, roots and stones. Topsoil shall receive a uniform application of fertilizer, lime, grass seed and mulch either by hydraulic or dry methods. Fertilizer and seed may be mixed with water and the mixture sprayed over the area to be seeded. Any mechanical operation may be used which will place the limestone, fertilizer, seed and mulch or any combination of these in direct contact with the soil and which meets the approval of the Engineer. FERTILIZATION: The fertilizer shall be a standard commercial grade fertilizer and shall conform to the requirements of the State Fertilizer Law and to the Standards of the Association of Official Agricultural Chemists. Dry fertilizer, if used, shall be furnished in new, clean, sealed and properly labeled bags not exceeding 100 pounds each. Caked or damaged fertilizer shall not be used. Dry fertilizer shall contain not less than 10 percent nitrogen, 20 percent phosphate and 10 percent potash and shall be applied at the rate of 850 pounds per acre. Liquid fertilizer if used in lieu of dry fertilizer, shall be applied in 1:2:1 ratio with the minimum rate to include 50 pounds of nitrogen, 100 pounds phosphate and 50 pounds of potash per acre. The limestone shall be a calcitic or dolomitic ground limestone containing not less than 85% of total (calcium or magnesium) carbonates. The limestone shall conform to the requirements of all state and federal regulations and to the Standards of the Association of Official Agricultural Chemists. The limestone shall be furnished in new, clean, sealed and properly labeled bags not exceeding 100 pounds each. Caked or damaged limestone shall not be acceptable. The limestone shall be applied at a rate of 1 ton per acre or as directed. SEED MIXTURES: The following grass seed mixture shall be utilized on this project - 01.11.90 T -3 7 CONSERVATION MIX Lbs. Live Seed Name % By Weight Per Acre 35 35 Creeping Red Fescue 23 23 Kentucky Bluegrass 15 15 Annual Rye 11 11 Winter Hardy Perennial Rye Grass (Variety Pennfine, Manhattan or similar varieties) 6 6 White Clover 10 10 Highland Bentgrass 100 100# live seed/acre No seed shall exceed 1 % in weed content. A guaranteed statement of composition from the dealer must be submitted to the Engineer for approval and be approved prior to commencing with seeding operations. After the seed has been applied, lawn areas shall be lightly raked to mix seed with the soil and rolled with a light -weight roller to the satisfaction of the Engineer. MULCHING: Within 24 hours of application of fertilizer, lime and seed, the surface shall be mulched with a hay mulch. Mulch shall consist of mowed hay properly free from swamp grass, weeds, twigs, debris or other deleterious material. It shall be free from rot or mold and shall be acceptable to the Engineer. Spreading by mechanical spreading devices may be used if approved by the Engineer. The application of mulch shall be made in such a manner that lumps and thick spots are avoided. When deemed necessary, mulch shall be anchored by a light coating of brush or tree branches, use of stakes, twine, netting or other methods approved by the Engineer. WATERING AND PRESERVATION OF GRASS COVER: All seeded areas shall be watered and maintained to the satisfaction of the Engineer. Within two weeks after the grass has come up, any areas where grass seed has not germinated properly or where the surface has been washed or damaged in any way, shall be reseeded as before. The grass cover shall be inspected again by the Engineer and Contractor during the month of May following completion of the work and any areas where grass seed has not germinated properly or where the surface has been washed or damaged in any way shall be topsoiled and reseeded as before. 01.11.90 T-38 03401 PRECAST CONCRETE MANHOLES The Contractor shall construct reinforced concrete manholes and drop manholes to the dimensions and at the locations shown on the Contract Drawings. All precast reinforced concrete manhole sections shall conform to the latest version of the ASTM Specifications C 478 or AASHTO M 199. The footings may be either with cast -in -place, with Class B concrete, or pre -cast and shall conform to the dimensions indicated on the plans. Shelves shall be constructed with Class B, 3000 p.s.i. concrete. Inverts for sewer manholes shall be as shown on the plans and details and shall be constructed of hard burned brick and mortar or, for straight runs, segments of pipe cut in half longitundinally. Inverts shall have the exact shape of the sewer to which they are connected and any change in size or direction shall be grandual and even. All construction of sewer manholes must be carried out to ensure watertight work. Any leaks in manholes shall be caulked and completely repaired to the satisfaction of the Engineer or the entire structure shall be removed and rebuilt. All manholes shall be provided with cast-iron manholes frames and covers as specified under section 05550. All manholes are to be provided with copolymer polypropylene steps with grade 60 steel reinforcement. These steps will have a minimum pull-out strength of 1,500 lbs. Precast risers and base for manholes shall conform to ASTM Specification C 478 or AASHTO M 199. The pipe opening in the precast manhole riser shall have a cast -in -place flexible gasket or an equivalent system for pipe installation, as approved by the Engineer. Joints between manhole risers shall be rubber "O" ring seals or soft Butyl joint sealer (rope form). The manhole cover frames shall be set to final grade only after the base course paving has been completed. Manholes shall be constructed to grade with at least two and not more than six courses of brick as specified in section 04211. With the exception of inverts, all surfaces of manhole brickwork shall be plastered with cement mortar, and plaster being carried up as the brickwork progresses, and all manhole lift holes shall be grouted inside and out with expandable grout. All brickwork for precast concrete manholes shall meet the requirements of section 04211. 6.11.91 T-39 04110 CEMENT AND LIME MORTAR WORK INCLUDED: This section pertains to the material and method requirements for use of mortar on block or brick masonry units under this contract. All masonry units shall be laid in mortar as described in this section, unless specified otherwise. MATERIALS: Mortar used in masonry construction shall be highly plastic with high water retentivity and shall consist of, by volume, 1 part Portland Cement, 1/2 part to 1/4 part hydrated lime putty and 2 1/4 to 3 times the sum of the volumes of cement and lime putty for sand. Mixture may be adjusted slightly for workability. Cement: Shall be a Portland Cement of American manufacturer, conforming to the latest revision of the ASTM Specification C 150 or AASHTO M 85, Type II, and to be of a color approved by the Engineer. Lime: Shall be a double hydrated, high calcium lime, conforming to the latest revision of the ASTM Specification C 207-SS, Type S. Lime putty shall be a stiff mixture of lime and water. Sand: Shall conform to the ASTM Specification C 144 or AASHTO M 45, 100% to pass #8 sieve, not over 25% to pass #100 sieve. Water: Used in mixing mortars shall be potable water. Use of prepared mortar mixes may be permitted, on request of the Contractor. Such work shall not proceed until permission is granted to use a prepared mix and the specific product to be used has been approved by the Engineer. MEASUREMENTS AND MIXING: Measurement and mixing shall conform to ASTM Specification C 270 or C 476 (latest version) and all mortar shall be mixed in a machine type mixer for a least 5 minutes. Retempering shall be kept to a minimum and mortar mix more than two hours old shall be discarded. All mortar shall be ASTM C 270, Type S. Mortar and grout for reinforced masonry shall conform to ASTM C 476. 6.11.91 T-40 04211 BRICK MASONRY FOR MANHOLES, CATCH -BASINS AND SIMILAR UNDERGROUND STRUCTURES WORK INCLUDED: The Contractor shall provide and install brick masonry where indicated on the plans or directed by the Engineer for construction to grade of manholes, for filling of manhole inverts and for similar uses. Each brick shall be wetted and completely bedded in mortar at its bottom, sides and ends in one operation, care being taken to fill every joint. Brickwork shall be well bonded and joints shall be as close as practicable. No brick masonry shall be laid in water nor shall any water be allowed to rise on or around any brick masonry until it has set at least 24 hours. No masonry shall be laid in freezing weather. The brick for ordinary brick work shall be common hard burned clay brick. All brick shall be regular and uniform in shape and size, with plane, parallel beds and faces. Ordinary brick shall conform to ASTM Specification C 32 or AASHTO M 191 latest version and shall be Grade MS. The brick used to construct manhole inverts shall be good, sound, hard and uniformly burned, regular and uniform in shape and size. Brick used for this purpose shall conform to ASTM Specification C 32 or AASHTO M 191 latest version and shall be Grade SS. Brick masonry shall be laid in Portland cement mortar composed of one part Portland cement and two parts of sand, measured by volume, to which not more than 10 pounds of lime shall be added for each bag of cement. The cement shall be as specified in section 03300. Water for mortar shall be clean and only an amount sufficient to produce a workable mortar shall be used. Mortar shall be used within one hour from the time the cement was added to the mix. The sand for mortar for brick masonry shall be uniformly graded, clean, sharp and contain no grains larger than will pass a 1/8 inch mesh screen. 6.11.91 T-41 05550 MISCELLANEOUS METALS FOR MANHOLES AND CATCH BASINS WORK INCLUDED: The Contractor shall install manhole frames and covers as outlined and at locations indicated on the plans or as directed by the Engineer. MANHOLE FRAMES AND COVERS: Manhole frames and covers shall conform to standards as designated on the Contract Drawings. Frames and covers shall be of tough, gray, cast iron. Casting shall be true pattern and free from flaws. Bearing surfaces of manhole frames and covers against each other shall be machined to give continuous contact throughout their entire circumference. All iron castings shall be thoroughly cleaned and then coated with hot tar before being delivered. Frames and covers shall be Neenah, LeBaron or an approved equal with model numbers as designated on the Contract Drawings. Manhole cover shall be marked "Sewer" or "Storm -Sewer" or "Water" as required. The Contractor shall provide water -proof type manhole covers as noted on the plans or as required by the Engineer. CLEANOUT FRAMES AND COVERS: Cleanout frames and covers shall be of tough, gray cast-iron. Casting shall be true to pattern and free from flaws. The bearing surface of cleanout frames and covers against each other shall be machined to give continuous contact throughout their circumference. All iron castings shall be thoroughly cleaned and then coated with hot coal tar before being delivered. 01.12.90 T-42 15355 GRINDER PUMP SYSTEM WORK INCLUDED: Work of this section pertains to the installation of the sewage grinder pump station, associated wiring, and pressure sewer main as shown on the Contract Drawings and as specified herein. This work shall include pumping out the existing septic tank and either removing it or filling it with suitable backfill material. Connection of the building to the grinder station shall be coordinated with the Airport and the Engineer and shall be done in such a way that the interruption in sewer service will be kept to an absolute minimum. Test pits may be required to locate existing septic tank and service line. The Contractor is encouraged to visit the grinder pump site and perform an on -site inspection to determine what obstacles will have to be removed and/or replaced during construction. No additional payment will be made for any interference or delays to the construction caused by these obstacles. Any visible features will not be considered unknown conditions. GRINDER PUMP STATION: Grinder pump station shall consist of two submersible pumps mounted within a prefabricated fiberglass enclosure. The pumps are mounted inside the enclosure on stainless steel guide rails which facilitate installation and removal. The grinder pump station package shall include two submersible grinder pumps, a fiberglass basin, guide rails, check valves, gate valves, float switches, basin cover, control panel, junction box, and all other piping and accessories as shown on the Contract Drawings. The station shall be completely factory assembled ready for installation. GRINDER PUMPS: Grinder pumps shall be equal to the Model SGV2022L pump manufactured by Barnes Pumps, Inc. or a similar model manufactured by Hydromatic, ABS Pumps, Inc. or other reputable manufacturer. Pump rate and head shall be equal to that produced by the Barnes with 4.5 inch impeller. Typical operating points for this unit are 12 gpm @ 60' TDH: 26 gpm @ 50' TDH; and 37 gmp @ 40' TDH. Pump motors shall be 2 h.p., 3450 rpm, 230 volt, 60 cycle, single phase intended for submersible operation and shall be the capacitor start, capacitor run type. The motor portion of the pump shall be oil -filled and shall include thermal overload which will shut down the motor operation upon a high temperature condition. The power cord shall enter the motor through a water proof grommet and shall include some means of strain relief. The pumps shall be the centrifugal type with a rotating cutter mounted on the pump shaft directly beneath the impeller. The stationary cutter which encircles the rotating 12.5.94 T 43 element shall be adjustable. Both cutting elements shall be hardened stainless steel for long life. Pump shafts shall be stainless steel and shall be supported by three sets of heavy duty bearings. Pumps shall include two mechanical shaft seals separated by an oil chamber. An electronic probe shall be provided in the oil chamber to detect any leakage of water through the lower seal. The sensor shall activate an alarm light mounted on the control panel if any leakage occurs. CONTROL PANEL: The pump and alarm controls shall be housed in a fully gasketed NEMA 313 door -in -door enclosure which shall be mounted on the exterior of the building as directed by the Engineer. A combination manual motor starter and disconnect switch shall be provided for each pump. The unit shall have instantaneous trip magnetic overcurrent protection and adjustable thermal trips. The control circuit shall be 115 volts and shall be connected through the heat sensing switches in the motors. Duplex control panel shall include an alternator relay to switch pump operation automatically. An override relay shall operate both pumps if inflow exceeds single pump capacity and shall start the second pump in case the operating pump fails. The override relay shall actuate the alarm in the second case. A high level alarm horn and red light(s) shall be included. The horn shall be mounted inside the control panel and the light shall be mounted on the bottom exterior of the panel. The light(s) shall be enclosed in a red polycarbonate housing and shall be activated by a high water condition or the seal sensor in the pumps. The panel shall also include elapsed time meters for each pump. JUNCTION BOX: The station shall include a water proof junction box mounted as shown on the inside of the basin. The box shall contain a waterproof gland for each float switch and shall contain a waterproof quick disconnect for each power cord. FLOAT SWITCHES: Pump operation and high level alarm shall be controlled by an appropriate number of mercury float switches. Each switch shall be fully enclosed in a solid urethane foam ball and shall include a counter weight and 30' of cable. PACKAGE DESIGN: The basin diameter shall be 48 inches with a depth of 111 inches. Construction shall be custom molded fiberglass reinforced polyester resin with interior surface to be gel -coated from 10 to 20 mil thick to provide a smooth sealed surface. The wall thickness shall be sufficient to withstand a water -saturated sand load of 120 Ibs per cubic foot with a safety factor of two at all depths. Two 4 inch plastic 12.5.94 T 44 pipe adapters or Adapt -A -Flex fittings and gasket material shall be shipped loose for field installation. An anti -flotation collar shall be provided as an integral part of the basin assembly. The collar shall extend a minimum of three inches (Y) beyond the radius of the basin. The basin cover shall be of steel construction with a thickness of three -eights (3/8"), and shall have a minimum diameter four inches (4") greater than the basin. Both inside and outside surfaces of the cover shall be sandblasted to remove rust and scale and shall be completely coated with air dry asphalt bituminous coating for corrosion resistance. A hinged door shall be an integral part of the cover, and shall have locking provisions. The cover shall be securely mounted to the basin with a minimum of six (6) stainless steel bolts threaded into stainless steel inserts in the top collar of the basin. All hardware shall be stainless steel. The slide rail assemblies shall consist of 304 stainless steel upper guide rail brackets and pump guide brackets with the slide rail assemblies of 14 gauge 304 stainless steel. The stationary and movable portions of the hydraulically sealed discharge coupling assemblies shall be machined cast iron. The upper guide rail brackets shall mount to the basin cover and position the upper end of the stainless steel guide rails while the discharge pipe positions the lower end of the guide rail. The stainless steel rail shall support the pump at a distance of four (4) inches from the basin floor to provide unrestricted flow of material into the pump. Stainless steel guide brackets shall be attached to the pump for positioning of the unit on the guide rail during installation or removal of the unit within the basin. The stationary fitting shall have a Neoprene diaphragm clamped between the stainless steel rail and the'stationary cast iron discharge. The cast iron movable fitting, when in position shall be held against the stationary fitting by the construction of the stainless steel rail, aligning the movable fitting to the flexible diaphragm for proper sealing of the two surfaces under pressure. The flexible diaphragm shall also serve as anti -siphon device. A stainless steel lifting cable with a minimum breaking strength of 2100 pounds shall be provided for pump installation and removal. The discharge piping shall consist of 1 1/4 inch schedule 40 stainless steel pipe. A ball check valve shall be installed in the vertical position between the pump discharge and the movable fitting . Each valve shall be 1 1/4 inches in size and shall consist of three major components; body, access plug, and ball. The design of the valve shall be such that it keeps solids, stringy material, grit, rags, etc., moving without the need of back flushing. In the operation mode, the ball shall not impede flow through the valve. The operating flow area shall be equal to the nominal size of the valve. The ball shall clear the waterway providing "full flow" equal to the nominal size. It shall be non -clog in design. There shall not be outside levers, weights, springs, dash pots or other accessories required for a swing (clapper) type check valve. The ball shall be natural rubber and be resistant to material normally found in sewage. The body and access plug shall be 12.5.94 T-45 grey cast iron, ASTM Class 30,. All fasteners shall be stainless steel. Inlet and outlet ports shall be 1 1/4 inch NPT threaded. A 1 1/4 inch 85-5-5-5 bronze gate valve shall be installed in the discharge piping of each pump to provide shut-off capabilities during pump removal. Each gate valve shall be fitted with an integral stainless steel extension handle. The extension handle shall extend up to within six (6) inches of the top of the basin for ease of access and operation. A NEMA 4X water- tight junction box shall be installed in the basin for connection of the pump and control wiring. The box shall be constructed of self -extinguishing fiberglass with minimum wall thickness of 3/16 inch. The box cover shall be bolted on with stainless steel fasteners and sealed with a neoprene gasket. Individual corrosion -resistant and liquid tight cable connectors constructed of thermoplastic with neoprene bushing and sealing ring shall be provided. The box and all connections shall be completely watertight and shall be capable of withstanding an external liquid pressure of 10 PSI. A 1-1/2 inch electrical conduit hub shall be provided on the back of the box. BASIN INSULATION: The basin shall be insulated as shown on the Contract Drawings. The insulation shall be 2" Styrofoam SM by Dow Chemical or an approved equal. The insulation shall be applied under the cover and down the inside of the basin walls 12 inches. The insulation shall be placed so as not to interfere with the openings and closing of the cover or the slide rail operation. Insulation shall be placed 12" below grade surrounding the basin as shown on the Contract Drawings. INSTALLATION OF PUMP STATION: The station shall be installed where shown on the Contract Drawings or as directed by the Engineer. The fiberglass basin shall be set in concrete as shown on the grinder pump station typical details to prevent flotation. Backfill around the fiberglass basin shall be a granular material free from large stones. At the discretion of the Engineer, excavated material may be substituted. Piping from the building sewer to the station shall be hubless cast iron within one pipe length of the basin. Existing septic tank shall be abandoned by either removal or filling with an appropriate backfill material. All septage shall be pumped out and properly disposed of. All electrical work required to connect the station to the electrical room within the building shall be done according to the National Electrical Code. 12.5.94 T 46 DONALD L. HAMLIN CONSULTING ENGINEERS, INC. Please Reply to: ENGINEERS AND LAND SURVEYORS ❑ P.O. Box 9 136 Pearl Street Essex Junction Essex Junction, Vermont Vermont 05453 and ❑ Veterans Drive Station #40 SubBase P.O. Box 5202 Charlotte Amalie —St. Thomas St. Thomas, VI 00803 U.S. Virgin Islands December 28, 1994 Mr. Ernest Christianson, Regional Engineer Vermont Division of Protection 111 West St. Essex Junction, Vermont 05452 Re: Metro Hanger Pressure Sewer Burlington International Airport Dear Ernie, Tel. (802) 878-3956 (802) 878-5123 Tel (809) 776-3388 Enclosed are an application, plan sheets and specifications for a proposed new grinder pump and pressure sewer to serve the existing Metro Hanger (formerly Air North hanger) at the airport. In addition to the information shown on the drawings, I felt the following additional data would be helpful in your review: Average daily flow = 600 gpd Peak flow = 12 gpm based on 14 fixture units Use a Barnes SGV, 2 hp grinder pump with 4.50" impeller: 30.5 gpm @ 46' Emergency storage required is 4 hrs. based on a 16 hr. day = 150 gal. Storage provided = 188 gal. (Elev. 312.0 to 314.0) Regarding the first condition in Bill Szymanski's letter of 12/27/94, I have already explained to him that I am unwilling to add the auxiliary pump connection for fear that raw, unground sewage could inadvertently be pumped into the 2" pressure sewer, causing a blockage. If any questions arise, please do not hesitate to call. Sincerely, L Michael C. Weisel, P. E. cc: Robert McEwing, William Szymanski WATER SUPPLY AND DISTRIBUTION SUBDIVISIONS LABORATORY ANALYSIS WASTE WATER COLLECTION AND TREATMENT SKI LIFTS (WATER AND WASTE WATER) STREETS AND HIGHWAYS RECREATION AND INDUSTRIAL PLANNING LAND SURVEYING AIRPORTS SOIL BORINGS SOLID WASTE MANAGEMENT Engineering —'7he link between what we have and what we need"