Loading...
HomeMy WebLinkAboutSP-85-0000 - Supplemental - 1432 Shelburne RoadDate: 5/17/89 To: City of South Burlington / Richard Ward From: C & C Enterprises Inc. Subject: 1801 / 1805 Shelburne Road Dear Dick: Attached please find: 1. stipulations of site plan approval(5/27/86) 2. irrevocable Letter of Credit 3. fire hydrant installation authorization Referencing your memo dated 4/19/89,the fire hydrant was installed prior to issuance of the building permit on or about 4/28/87 in compliance with the stipulations of site plan approval. The $ 7425 Letter of Credit expired in October 1988;per the stipulations of site plan approval $ 4500 was to cover landscaping with the remainder $ 2925 to cover the sidewalk as determined by the city engineer( $ 15 per foot x 195 feet I contacted Willis Construction Co. and was told they were not taking any new work at this time. To satisfy your 30 day requirement enclosed is a check for $ 2925. ;acceptance to be considered in compliance. Sincerely, Harry Curth, President cc: Rocky Cleborne City of South Burlington 575 DORSET STREET SOUTH BURLINGToN, VERM0NT 05403 PLANNER 658-7955 April 19, 1989 Rocky's Car Wash 124 Pearl Street Essex Junction, Vermont 05453 Re: 1805 Shelburne Road Dear Rocky: ZONING ADMINISTRATOR 658-7958 On Monday you requested and were granted a certificate of occu- pancy for your Shelburne Road location Upon review of your site plan I found that certain improvements were not completed. Your site plan included the installation of a fire hydrant and the construction of a sidewalk along the frontage of your lot. You will be required to complete these improvements within the next 30 days. My records indicate that we still have your performance bond which includes landscaping, sidewalk and hydrant. Should you fail to comply we will be forced to call in the bond. If you have any questions please don't hesitate to call me. Very truly, Richard Ward, Zoning Administrative Officer RW/mcp PLANNING COMMISSION 27 MAY 1986 PAGE 3 matter here because you can only get so many cars into the carwash. Mrs. Hurd said she is bothered by how they increased the lot size, but she acknowledged it was legal. Mr. Dooley moved that the S. Burlington Planning Commission approve the site plan application of Harry F. Curth for con- struction of a 2, 220 sq. ft. building at 1805 Shelburne Rd (Lot #1 of the Fassetts 3-lot subdivision and an annexed portion of the Fassetts Baker lot) as shown on a set of plans entitled "Proper y of Fassetts Bakery, Inc., Revised Site Plan" and "Shelburne Road Car Wash -Site Plan" prepared by FitzPatrick-Llewellyn, Inc, dated February, 1984, last revised 5/86 and March, 1986, stamp dated May 15, 1986 respectively, with the following stipulations: vl. A( 4500 landscaping bond shall be posted prior to permit. 2. A 16,000 gallon per day sewer allocation is allotted to this use. This includes 500 gpd of the 1500 gpd allotted to the 3-lot subdivision. The applicant shall pay the $2.50 per gallon fee prior to permit. 3. The applicant shall implement the recommendation of Wagner Heindel & Noyes for storm water detention, after review and approval by the City Engineer. A bond for the sidewalk along the frontage shall be posted prior to permit. The bond amount shall he determined �2y the City Engineer. 5. The applicant shall contribute tcward the Shelburne Rd. intersection improvement fund in an amount not to exceed 2% of the total amount based on 62 trip ends created by this facility. 6. The operator of the carwash shall be responsible for an deicing required on the private drive as a result of the car wash operation. 7. A fire hydrant shall be installed prior to permit in a Ication specified by the fire chief for these 3 lots 8. The building permit shall be obtained within 6 months or this approval shall be null and void. ✓9. It is the applicant's responsibility to record the revised subdivision plat with the City Clerk within 90 days or this approval shall be null and void. The. 1p anssmust be approved bythe'Planner and signed j?y the Chairman -or Clerk of the `Planning Commission prior to.recording.:: April 17, 1987 Irrevocable Letter of Credit #87-1401 City of S. Burlington Attn: Richard Ward, Zoning Adm. S. Burlington, VT 05403 Re: Car Wash at 1805 Shelburne Road, South Burlington, Vermont Gentlemen: We hereby authorize you to draw on the Vermont. National Bank, for the account of Rockwell Cleborne and Harry Curth of South Burlington, VT 05403, up to the aggregate amount of seventy-four hundred twenty-five dollars ($7,425.00) U.S. Currency, available by your drafts at sight. The drafts drawn under this credit are to be endorsed thereon and shall state on their face that they are drawn un-- de.r the Vermont National Bank, Burlington, Vermont, Letter of Credit #87-1401 dated April 17, 1987. The drafts presented for payment under this Letter of Credit must be accompanied by a letter from an authorized agent of the City of South Burlington (Municipality) stated that the Municipality has given Rockwell Cleborne and Harry Curth (Corporation) written notice of default of its performance requirements under an agreement dated March 1987 between the Municipality and the Corporation, and that said notice was delivered to the Corpo- ration at least 60 days in advance of the draft(s). Documents must be delivered to the Vermont National Bank, P.O. Box 1308, Burlington, VT 05402 and drafts must be drawn and negotiated not later than October 20th, 1988. Except so far as otherwise expressly stated, this credit is subject to the Uniform Customs and Practice for Documen- tary Credits, 1983 Revision, International Chamber of Com- merce Publication Number 400. 150 BANK STREET, BURLINGTON. VERMONT 05401 • TELEPHONE 802-863.8900 - 2 - City of South Burlington Richard Ward, 'boning Adm. April 17, 1987 We hereby agree with the drawers, endorsers and bona fide holders of the bills drawn in compliance with the terms of this credit that the bills shall be duly honored upon pre- sentation at Vermont National Bank. Very truly yours, VERMONT NATIONAL BANK By Michael A. Gingras Vice President. By: WFP/dmj Walter F. Poczobut Assistant Vice President MARCH 31, 1987 We the undersigned hereby authorize Bread Loaf Construction Company, Inc. to install the fire hydrant required by the State of Vermont. We understand that the cost of this work is included in your proposal amount ($ 295,000.00) indicated in our letter of intent dated March 11, 1987. W,e, 6Lp -tq'c'� w� � 1�"� -:t / ► 3 / �1 c � Zt / soo C & C p ises CITY OF SOUTH BURLINGTON SITE PLAN APPLICATION 1) NAME, ADDRESS, AND PHONE NUMBER OF: a) Owner of Record The Estate of Dorothy t11elendy Hazelton b) Applicant Rockwell Clayborne c) Contact Person Dennis Vebster - Wiemann-Lamphere Architects, Inc. 289 College Street, Burlington, Vermont 05401 2) PROJECT STREET ADDRESS: 1432 Shelburne Road 3) PROPOSED USE (s) Car Wash 4) SIZE OF PROJECT: (i.e. Building Square Footage, #units, maximum height and #floors 13,000 s.f. one story car wash T 5) NUMBER OF EMPLOYEES (full and part time) : 15 full - 30 Dart 6) LOT COVERAGE: Building See Drawing %; Building, Parking, Outside Storage: % (Note existing trees) 8) COST ESTIMATES: Buildings: $ 400,000. Landscaping $ 6,000. Other Site Improvements: (Please list with cost) $ Site Development_ �)40,000 9) ESTIMATED PROJECT COMPLETION DATE: Winter 1986 10) ESTIMATED AVERAGE DAILY TRAFFIC (in and out) 140 •cars in per day 11) PEAK HOUR(s) OF OPERATION: 12:00 - 2:00 n.m. go 12) PEAK DAY (s) OF OPERATION: Saturday F; Sunday 7/23/85 JSB MOTION OF APPROVAL That the South Burlington Planning Commission approve the Site Plan application of Rockwell Clayborne for the construction of a 13,000 square foot car wash facility at 1432 Shelburne Road as depicted on a plan entitled "Site Plan, Rocky's Car Wash, Shelburne Road, South Burlington, Vermont" prepared by Wiemann- Lamphere Architects, dated 7/5/85 with the following stipulations: 1. The access on to Route 7 shall be closed when the Holmes Road extension is built. Access shall be solely from Holmes Road at that time. 2. The applicant shall implement the recommendations of Wagner, Heindel and Noyse for a storm water detention pond. 3. The storm drainage pipe shall be plastic or concrete. 4. A $7000 land caping bond shall be posted prior to permit. 5. A sewer allocation of 4200 gpd is granted in Accordance with the South Burlington Sewer Policy; the applicant shall pay the $2,50 per gallon fee prior to permit. 6. The building permit shall be obtained within 6 months. PLANNING COMMISSION The South Burlington Planning Cc Meeting on Tuesday, 11 February Conference Room, City Hall, 575 Members Present Mary -Barbara Maher, Chairman; Ju John Dooley, William Burgess, Ca Others Present Jane Bechtel Lafleur, City Planner; Sid Poger, The Other Paper; Charles Brush, Brad Allen, Charles Deslauriers, Carl Lisman, Phyllis Atherton, Ross Bell, Joyce Bell, Kathy RAcine, M. Hunel, Barbara Hamel, J. Jaquiet, George Drabble, Fred Taylor, Doris Dunkley, James Sector, Sandra Dooley, Thomas Adler, Craig Leiner t. Minutes of 28 January 1986 Mr. Burgess moved that the Minutes of 28 January 1986 be approved as written. Mr. Belter seconded, and the motion passed unanimously. Consider request by Nordic Ford/Toyota for a 6-month extension of the site plan approval granted on 9/24/85, for construction of a 14,000 sq. ft. building at 1620 Shelburne Rd. Mrs. Lafleur advised that the applicant has been working to meet Wagner, Heindel & Noyes requirements which are very strict. The parking lot configuration has been changed with some spaces in back removed. Mrs. Hurd moved that Nordic Ford/Toyota be granted a 6-month extension to their site plan. Mr. Burgess seconded, and the motion passed unanimously. I „ Consider request of Rocky Clayborne for 6-month extension to site plan approval granted August 6, 1985 for construction of a car wash at 1432 Shelburne Rd. When Holmes Rd. is extended to the east, access will be changed to Holmes Rd. 'There has been some discussion on developing land to the east of this parcel; 2-4 acres, which is zoned residential and commercial, and there is talk of the 2 lots joining up. If Rocky doesn't do the carwash, he will have to put the sewer allocation back into the pool. The concensus of the members was that they wanted Mr. Clayborne to come back for further discussion with the Commission. M E M O R A N D U M To: South Burlington Planning Commission From: Jane B. Lafleur, City Planner Re: February 25, 1986 agenda items Date: 2/21/86 • 1) ELECTION: Mary -Barbara Maher is resigning from the Chair position. Please be prepared to elect a new Chairperson. 3) ROCKY CLEBORNE, 1432 SHELBURNE ROAD Rocky Cleborne requests an extension to the site plan that was approved by the Commission on August 6, 1985. This approval expired on February 6, 1986. Since this extension request was received on February 4, 1986 I suggest we consider it a request for an extension rather than starting over. ,�- There is some discussion about combining this property to DOD with the 4 + acre parcel to the south and east that is owned by Thomas Farrell. That parcel is zoned Commercial-1 and Residential-4 and will require a Planned Commercial Development approval as well as a full traffic study. I am enclosing the minutes of August 6, 1985 to answer your questions regarding the traffic figures. Cleborne should be present to answer any questions. �M 4) G.S. BLODGETT, 75 FARRELL STREET The applicant requests an extension to the site plan approval granted on September 17, 1985. It expires on March 17, 1985. The conditions of the property are essentially unchanged and the 6 month extension should be granted with the stipulation that all stipulations of September 17, 1985 shall remain in effect. The building permit will have to be obtained within 6 months of March 17, 1986. 5) CHINA LITE, CORPORATE WAY The applicant proposes to construct a 60' x 12' greenhouse addition to the northern end of the restaurant for additional seating. Other sections of the restaurant will be reorganized with a resulting capacity of 371 seats. The live entertainment will be eliminated. February 20, 1986 Rockwell Cleborne 124 Pearl Street Essex Junction, Vermont 05452 Re: Rocky;s Car Wash, 1432 Shelburne Road Dear Mr. Cleborne: Enclosed are the agenda and a copy of my memo to the Commission regarding your application. Please be prepared to discuss your request on Tuesday, February 25, 1986 at 7:30 P.M. Sincerely, Jane B. ' Lafleur, City Planner JBL/mcp Encls EIJCTR Ledstq4,u6 hon 9bb J'7-c4 4: TOu BTG'32G pG I-,rs*bcjx6q T-,c r EUCTOaGg qtG f:PG va�oqq guq g ccbA Ot M� wsavrj -o ;Tjo r _OUITITe.2 TOU HG: 90CKNtP C7L tAgRP" T133 ?PSTPaLuk; E8R6x InucPT011' AGKWOvJP 0 21 T5q BS9LY ��xesg YOCKWJ] CTGPCsLuf LGPLngO� 30' TM M E M O R A N D U M To: South Burlington Planning Commission From: Jane B. Lafleur, City Planner Jam' Re: February 11, 1986 agenda items Date: February 7, 1986 2) NORDIC FORD, 1620 SHELBURNE ROAD The site plan approval granted on September 24, 1985 expires in a month. The applicant requests a 6 month extension to the approval. Over the past 5 months the applicant has been working with Wagner, Heindel and Noyes and the City to meet our erosion control policy for this development. After numerous reconfig- urations of green space, retention ponds and drainage areas, the plans meet our requirement for the runoff. to not exceed pre -development conditions for the entire site. (See attached letter from Alexander/Truex/de Groot, Inc.) I see no reason why this can not be- extended for 6 months. 3) ROCKY'S CAR WASH, SHELBURNE ROAD The applicant requests an extension to the site plan approval granted on August 6, 1985. I received this request prior to February 6, 1986, the date of expiration. (See enclosed letter) 4) DESLAURIER, EAST TERRACE The applicant requests a clarification of the Planning Commission's intent for the 50 foot right-of-way to this 1.29 acre parcel. It is his contention that the land was rezoned to R4 from C-1 so that this property and the Quarry Hill Club property could "use this r.o.w. . to East Terrace. If the Commission intends to not allow any other access through this r.o.w., Mr. Deslauriers requests that the 4 acres of the golf course that are presently R4 be rezoned to C-1. (See enclosed map) 5) CHINA LITE, CORPORATE WAY The applicant proposes to construct a 60' x 11' greenhouse add- ition to the northern end of the restaurant for additional seat- ing. Other sections of the restaurant will be reorganized with a resulting capacity of 371 seats. The live entertainment will be eliminated. February 6, 1986 Rockwell J. Cleyborne 124 Pearl Street Essex Junction, Vermont 05452 Re: Site Plan Extension, Shelburne Road Car Wash Dear Mr. Cleyborne: Enclosed are the agenda and a copy of my memo to the Commission regarding your request for an extension. You may want to attend this meeting since your letter does not meet the require- ments for a request for an extension. You must provide a reason- able amount of evidence of intent to pursue the project and ~rAT conditions are unchanged since the time of the original approval (section 20.302). Sincerely, Jane B. Lafleur, City Planner JBL/mcp Encls !?,UCTZ:: qBr\wcb CUN bTgUUGX .Lgue B. ry:Terul P,Tucc-T.GTX' (SE,CCTOLi 50 - 305) 9PT6 9WOrlj4� OL 6ATqGijcG Ok TurG;;C 4:0 brLens pvc U16VCe i0l 9 L6dn62� IOE SFIJ 6x4:6iJ2-TOIJ- A011 W172f IDZOATqG 9 LG�48-.7U- 394:6lJG i:PTL- w96,pTua ;,"MCC, X(WIL q0ca UO�: W66'r rjjc, kGdjlrxr.- t6d9LqTu& ;"-Onr LGdlGeC tOL UL CXPGLjaTOLJ- A01-1 Ui%7tAgu; 4.0 Euclousq 9L6 ;jJG cidGuqs guq 9 r;obX oW, wrswo ro ppr. cowwreaTou Degr. JIL- -T6ApoLQG: bT9U BX:tiU2TOU" RPGTpnLUG yoaq (-,,:L �; 2 EaSGX aTlucPTOU" A6ZWOUP 021211 i5i B(-.19LT erLOG; JOCKMGTTJ 'I- CTG-4OXUC, LGPLngo, e,- jase Jane Bechtel City Planner City of S. Burlington Dear Jane: C"co QLILI IT�' Jan. 29, 1986 This letter is a formal request for a 6 month extension on my Site Plan Approval dated August 6, 1985. 1 would like additional time to obtain my building permit, while keeping my sewer allocation of 4200 gpd. Would you please send a letter of confirmation. Thank you for your time and consideration. Sin ,p,Rrely, Rockwell J. Cleborne / (802) 878-8681 124 Pearl St,, Essex Jet,, Vt, 05452 Automatic, Self Service, Fleet Rates PLANNING COMMISSION ` t`?5 peA ?<AXL y "k 6 August 1985 page 2 - Continue Discussion on Site Plana lication of Rocky Cla bourne, or construction oa drive-throu Acarwashat 1452 Shelburne Rd. The architect explained that all washing & drying of cars will take place inside the building. There will be gas pumps in front, but only for the convenience of people who also want to pick up gas at the same time. They will be planting some additional trees. When the street comes in across from Holmes Road, the access will be changed to come off that road. Roger Dickinson presented his firm's traffic study figures. They put an automatic traffic counter at Rocky's Essex Junction location beginning on a Friday, through the weekend, until the following Thursday. Counts were taken hourly. They found that the peak traffic was Saturday and Sunday mornings, averaging 15 vehicles per hour, the equivalent of 30 trip ends. During the weekdays, the noon hour and the pm peak hour experienced 10 cars per hour, or 20 trip ends. He noted that winter months see higher use than summer months. In estimating traffic at the Shelburne Road location, Dickinson felt that there would be 41 trip ends per hour on weekdays and 61 trip ends per hour on weekend mornings. He added that on Shelburne Rd. traffic is higher in summer than in winter months. Ms. Bechtel asked if it was possible to compare traffic levels on Pearl St., Essex Junction and this location on Shelburne Rd. Mr. Dickinson replied that both locations are major arterial highways, 4 lanes or greater in width. Shelburne Rd. in this area has about 24,000 vehicles per day, and Pearl Street in Essex Junction has about 20,000. Me felt this was not a significant difference and the 2 locations could be compared for this purpose. Mr. Dooley noted that on July 28, 1984, based on Rocky's figures, the peak was 67 cars while on March 24, 1984, the peak was 569 cars. He said this was not an ignorable difference. He stressed that based on one weekend in July, they were calculating 61 trip ends per weekend morning. Mrs. Hurd noted that even this was exceeding the traffic overlay. Lengthy discussion rose about the interpretation of the traffic overlay zone. Mr. Dooley said it was his understanding that either criteria applied, either 80% of the highest hourly volume for the adjacent street or 7 AM - 6 AM, Monday -Saturday. As long as the peak hour occurs in that time period, it is a peak hour. In this instance the peak occurs on Saturday morning, so it is a peak hour. Mr. Jacob asked what they estimated traffic would be from 4-5 pm. Mr. Claybourne said very few because people don't want to get out of the line of traffic on their way home from work. PLANNING COMMISSION 6 AUGUST 1985 page 3 It was noted that in the latter part of April, 1984, just north of McIntosh, the highest hour was Friday, 4-5 pm, with 2,264 vehicles per hour. 80% of that is 1800 vehicles per hour. The Saturday volume of 1840 is just about that 80% figure. Mrs. Maher explained that they are thus talking about waiving or not waiving the traffic overlay zone requirement. Mr. Krassner asked how many cars can be stacked up on the pro- perty. Mr. Claybourne said over 50, which is as many cars as they can wash in an hour. Mrs. Maher polled the members about waiving of the traffic re- quirement. Mrs. Burgess, Belter, McClary and Jacob and Mrs. Maher felt it could be waived. Mr. Dooley and Mrs. ?curt were opposed. Mr. Doolev then moved that the South Burlington Planning Commissia approve the Site Plan application of Rockwell Cla borne for the construction oa 13,000 sq. ft. car wash facilityat 1432 Shelbur as depicted on a plan entitled e Plan, oc s ar Wash, Shelburne Road Southur in on Vermont" 2repared by Wiemann- Lamphere Architects. dated 7/5/8t with the fol ]owing s pu a ions: 1. The access on to Route 7 shall be closed when the Nolmes Road extension is built. Access shall a solely fr3m Holmes Road a tnat time. 2. The a licant shall have plans approved by the City Engineer to im ement the fecommendations of Waer,e n e o es for a storm water detention pond prior to perms . 3. The storm drainage pipe shall be plastic or concrete. T+. A $7 000 landscapin& bond shall be osted prior to permit, with credit granted or existing Tan scaping. 5. A sewer allocation -of 4200 gpd is granted in accordance with the South ur n on Sewer Polieli the applicant shall a e per gallon fee prior to permit. 6. The building permit shall be obtained within 6 months. Rr. Burgess seconded the motion which passed 5-2, Mr. Dooley and Mrs. -Hurd voting against. Continue discussion of Site Plan application of Robert & Lynn ar ier or Par F y Business on lots 2 & 3 ait Gregory n us real Ms. Bechtel noted that the City has a $30,000 letter of credit from Mr. Gregory for completion of the street and utilities. To date, the base has been laid down. Members felt they were now ready to act on the motion. e M E M O R A N D U M TO: South Burlington Planning Commission FROM: Jane S. Bechtel, City Planner RE: August 6th Agenda Items DATE: August 2, 1935 2) EAST TERRACE, MULTI -FAMILY CONVERSION The City Attorney has verified that this project qualifies as a subdivision. According to our regulations multi -family projects qualify as major subdivisions. Multi -family is defined as three or more families (units). Although the ordinance calls for this to be treated as a major subdivision, (2 Public Hearings), the City Attorney has agreed that the Commission could rule it a minor subdivision since it is a conversion of an existing structure, it requires no new streets or public facilities, and it will have no increase in the building foot print. This qualification will allow the application to proceed with only one public hearing. The Commission should clearly state the reasons that this will be considered a minor subdivision in order to distinguish it from future multi -family developments that truly should be considered major subdivisions. There is no prior application for this lot in either the files or individual recollections. There was a proposed 4-unit DesLaurier Subdivision across the street that was denied by the Zoning Board in 1980. It was zoned C-1 at the time and a variance was needed for residential use. A sewer allocation will be needed for this 4-unit dwelling and will be charged the sewer fee. Nine parking spaces are required. Lanscaping should be shown for Final Plat. 3) PARK AND FLY The City has a $30,000 letter of credit from Mr. Gregory for the completion of the street and utlities. To date, the base is down. The letter of credit stated the street is to be completed by Augusrttl5 '1985. If it is not, we will act on the letter of credit. The stipulation of the Reprographics building on lot #1 required the street to be completed prior to occupancy. There is no reason not to act upon this site plan application as well in a similar fashion. 4) ROCKY'S CAR WASH Mr. Clayborne will be providing -traffic information prepared by Roger Dickinson of Fitzpartick-Llewellyn. (Enclosed) It was taken at the Essex Car Wash this past week. Erosion Control information is also expected. 5) NATIONAL CAR RENTAL, 344 DORSET STREET The applicant proposes to change the use of an existing building (formerly Climate Control) to a printing business and the National Car Rental business. The property is zoned C-2. The Zoning Board approved this for multiple uses. M E M O R A N D U M To: South Burlington Planning Commission From: William J. Szymanski, City Manager Re: July 23, 1985 agenda items Date: 7/19/85 6) LYNN & CHARLIER, PARK AND FLY BUSINESS, GREGORY INDUSTRIAL PARK 1. Gravel parking area will have a slope in excess of 8%.(8..feet.. in 100 feet) this will subject the area to washouts. I would recommend the material be the so called plant mix type which is subject to washouts. 2. Parking rows should be deliniated with concrete pumpers. 3. Site should include drainage inlets with traps, to intercept the runoff, and piped to the street system. 6) ROCKY'S CAR WASH, SHELBURNE ROAD 1. This site shall include a storm water retention area designed by a professional engineer to control runoff. This shall be in- cluded in a site drainage plan. 2. Storm drainage pipe shall be plastic or concrete pipe. 7) AUTOMATED FLIGHT SERVICE STATION, AIRPORT DRIVE 1. The entire site drainage plan must be submitted for review. The existing drainage swale discharging northerly from this site has been a problem. This must be studied, including the closed system it discharges into, to see if it can handle this extra flow. An alternate may be to drain the site into the Airport Drive storm sewer system. 8) BROCKWAY AIR, CALKINS COURT 1. A site drainage plan shall be submitted. 2. The purpose of the connecting drive to the 50' easement is not clear,also access to the northerly parking area. Memorandum July 23, 1985 Agenda items July 19, 1985 Page 2 Circulation and Access: recess is from the west side of Gregory Drive. There will be a separate entrance and exit. Circulation is provided around the proposed building and throughout the parking lot. Parking: The plan shows 227 parking spaces. Ninteen are for public use; 208 are vehicle storage for Park and Fly patrons. According to the traffic study of David Spitz, most vehicles will be parked 1.6 to 3.5 days on the average. Most of the lot is unpaved. Landscaping and Screening: The plan meets the landscaping requirement. The landscaping consists of cedar hedge, lilac bushes, linden, crab- apple, euonymous spindle tree, and norway maple. A $7600 landscaping bond must be posted. Other: See Szymanski's comments. The traffic data of Mr. Spitz indicates that 4 vans will shuttle users at 15 minute intervals, unless there are no airplane arrivals. The traffic peak is estimated to occur at 10-11 A.M. and 6-7 P.M. rather than peak Williston Road hours. The entire subdivision was allowed 125 trips per peak hour. This use projects 40, bringing the total to date to 60. Before the fifth lot is to be developed the entire development is to be reevaluated. The State required a flashing yellow light at the top of the hill, a sign at the bottom warning of trucks entering and a decelleration lane into the development. 6) ROCKY's CAR WASH, 1432 SHELBURNE ROAD The applicant proposes to construct a drive -through car wash at the site of the former Melandy's Chain Saw repair on Shelburne Road. The property is zoned C-2 and car washes are a permitted use. The existing building will be removed. 1' Traffic: The property is in overlay zone 2; 48 trips per'hour are allowed on this 2.2 acre lot. The ITE data sows an average of �10 trips during the peak hour on the adjacent street and:l32 trips per peak hour during the weekday peak hour of the use. The applicant estimates a maximum of 80 trips would occur on sunny Saturdays betv,-een the hours of 12 and 2 P.M. Saturdays are known to be the peak day of a car wash. Access & Circulation: A 36 foot driveway is shown from the lot onto Shelburne Road. A two lane exit is shown for separate right and left turn lanes. The two existing curb cuts will be closed. The new Memorandum July 23, 1985 agenda items July 19,1985 Page 3 one is on the southern property line. The property abuts land where the planned extension of Holmes Avenue is (owned by Farrell). As was stipulated with the Burger King on Shelburne Road, access to this lot should be moved to this proposed road when the road is built. The access to Shelburne Road should be closed at that time. Parking: Thirteen parking spaces are shown. Landscaping & Screening: There is an existing cedar hedge on the northern property line along Handy's property. The ordinance re- quires $10,500 in landscaping and a bond must be posted. Approximately $7000 worth of new plantings is shown. Credit is requested foi the existing plantings valued at $3,500. Other: A sewer allocation will be needed. The applicant projects 4200 gpd. This will be charged the $2.50 per gallon set by the Council. The applicant is expected to produce the report from Wagner, Heindel & Noyse for the erosion effects of this development and their re- commendation to not increase the erosion. This is located on the rth brook. 7) CYNOSURE, BURLINGTON INTERNATIONAL AIRPORT The applicant proposes to construct an 8,000 square foot building for an Automatic Flight Service Station. It is located at the end of the former Dawn Court. Circulation and Access: Access is at the northern end of driveway that circulates in front of the terminal and out to Airport Drive. Parking: Parking is provided for 71 vehicles. Landscaping: The landscaping plan shows approximately $4500 towards the $10,500 require by the ordinance. The applicant claim_ height restrictions prohibits additional plantings. The front of this build- ing is landscaped as is part of the parking lot. Other: A sewer allocation of 375 gpd is needed at the fee of $2.50 per gallon. There is capacity to handle this amount. PLANNING COMMISSION 23 July 1985 page 4 The question of the road was raised, and Ms. Bechtel noted Mr. Gregory had not yet completed work on it. The City has a bond, and the time period for the work has not yet expired. Mrs. ?curd felt that no building permit should be issued until road work was completed. Ms. Bechtel will check the wording of the original subdivision motion. Regarding traffic, Mr. Spitz reported that 125 trip ends are allowable for this 6-lot development, roughly 20 per lot. The first two lots cone in under that figure, and the proposed project is right at that figure. In the same period during which there were 110 accidents reported in the McDonalds location, only 7 were reported at this location. Mr. Spitz said that the peak hours for this location do not coincide with these for other establishments. The applicant stressed that the car servicing was only for "park and fly" customers. It was agreed to continue the request until the question of the road work can be discussed further. .onsider site plan applicatian of Rockwell Clayborne for con- struction of a car wash _facility a Mr. Lamphere explained that the site is across from Volkswagen. It will have stacking capacity for 60-64 cars with strictly an inside operation. Some new willows will be added to the land- scaping. A storm drainage study is being done by Wagner, Neindel & Noyes, and the applicant will provide a retention basin ox the site. It is estimated that 4200 gpd will be required based on Mr. Clayborne's Essex operation. The applicant stressed that this is predominantly a carwash, not a gas station. Ms. Bechtel noted that the area falls in overlay zone 2 and is ct land where Molmes Road would be extended. (.trips per peak hour are allowed. ITE informatian shows this facility would produce 110 trips per peak hour Which exceeds the zone allowance by more than two times. Mr. Clayborne said the ITE data comes from only 1 source, Paul Box Associates who studied only 2 carwashes in the Chicago area, which is 70 times the size of Chittenden County. Mr. Box himself felt this was a limited sampling and added that the stack -up area was a key factor with 25-30 cars being the best recommendation. Mr. Clayberne noted they have capacity for 60. The building will also be set back 170 feet, 100 feet more than the requirement. Me added that his peak day is Saturday which would not interfere with regular weekday peak traffic. Mr. Dooley raised the question of water run-off. Mr. Clayborne said they recycle more than 75% of their water and that by law run-off must be taken care of by interior drains. PLANNING COMMISSION 23 July 1985 page 5 Mr. Dooley noted that he has consistently voted against Shelburne and Williston Rd. projects which exceed allowable traffic figures and that he would continue to do so. Mrs. Maher said they night request data as to what traffic they would produce at peak hours: 7-9 AM and 4-6 PM; Mrs. Hurd added that peak hours on Saturday should also be considered: 6-8 AM, 11-1 PM, and 4-6 PM. The concenses of the Commission was that they wished to wait for this information before proceeding. Consider Site Plan Application of C nosure Inc. for construction of an 8,000 sq. ft. buildingor Automated Flig#t Service Station-, Airport Drive, Burlington International Airport Ms. Bechtel reported that Mr. Goddette is now satisfied with fire control measures. Mr. Lamphere advised that in May, 1982, the federal government sent out proposals in New York, Vermont, and New Mampshire for an automated flight service station. There are now 360 in the country, and all but 61 of these will be eliminated. In our area, stations are currently located in Lebanon, N.M., Berlin, Vermont, and Glens Falls, N.Y. The proposed facility will consolidate those 3. Cynosure, which is a sister corporation of GBIC, was awarded the facility, which will be leased to the federal government for one year, renewable for 3-25 years, for $1.00 per year. To make this work, the state legislature appropriated $748,000; all costs beyond this will be borne by Cynosure. The facility will employ 50-60 people in 3 shifts with $2,000,000 in salaries. This will preserve jobs now held by people in Berlin and some of those in Lebanon and Glens Falls. The facility will be tax-exempt; however, if it is ever leased to a private concern in the future, it would then be taxable. Entrance to the facility will be from the main drive in front of the terminal. At some future date, there will. be another access. Dawn Court would not be used. The FAA will provide a tower facility. Landscaping around the building will be kept low because of the safety factor around the airport. All draina a will go to a retention area and will not add to the airport problem. Water will tie into existing mains and will give the continuing loop Chief Goddette has been looking for. They will tie into the sewer on Airport Drive and will have an allotment of 350 gpd. Mr. Dooley questioned additional traffic in front of the terminal building. Mr. Lamphere said it is possible to keep Dawn Court as an access but that may cause more problems than they have now. Mrs. Maher asked why there was no landscaping in the parking lot area. Mr. Lamphere said this will eventually be done by the airport. Me said they have no problem with continuing landscaping around the parking lot. Miss Bechtel noted that $6,000 could be reserved for future landscaping. - Fu -t7 L4 3:33 ---------- 00- 14 7L-- City of South Burlington 575 DORSET STREET SOUTH BURLINGTON, VERMONT 05401 PLANNER 658-7955 August 2, 1985 James Lamphere Wiemann-Lamphere Architects 289 College St. Burlington, Vermont 05401 RE: Rocky's Car Wash Dear Jim: ZONING ADMINISTRATOR 658-7958 Enclosed are the agenda and a copy of my memo to the Planning Commission. Please be sure someone is present on Tuesday, August 6th. Sincerely, Ja e echtel City Planner cc: Roger Dickinson City of South Burlington 575 DORSET STREET SOUTH BURLINGTON, VERMONT 05401 PLANNER 658-7955 August 2, 1985 James Lamphere Wiemann-Lamphere Architects 289 College St. Burlington, Vermont 05401 RE: Rocky's Car Wash Dear Jim: ZONING ADMINISTRATOR 658-7958 Enclosed are the agenda and a copy of my memo to the Planning Commission. Please be sure someone is present on Tuesday, August 6th. Sincerely, Ja e echtel City Planner cc: Roger Dickinson July 29, 1985 games Lamphere Wiemann-Lamphere Architects 289 College Street Burlington, Vermont 05401 Dear Jim: Enclosed are the minutes of the July 23 Planning Commission meeting. The Commission will continue discussion of Spour request on Tuesday, August 6 at 7:30 P.M. Please be sure to have traffic data prior to that meeting. Sincerely, Jane S. Bechtel, City Planner JSB/mcq 1 Encl q!� FITZPATRICK-LLEWELLYN INCORPORATED Engineering and Planning Services The Kiln • 15 Brickyard Road • Essex Junction • Vermont • 05452 • (802) 878-3000 2 August 1985 Mr. Rockwell Cleborne Larabee Bryce, Inc. P.O. Box 44 Hestford, Vermont 05494 RE: Traffic Generation Rates Rocky' s Car Hash, Essex Junction FILE: 85079 Dear Mr. Cleborne: At your request, He have evaluated trip generation rates at your existing car wash at 124 Pearl Street in Essex Junction. This existing facility consists of two bays, one containing a semi -automated mechanical wash system and the other, two hand wash stations. Gasoline is not sold at this facility. Four vacuuming stations are also available for use by customers. He understand that you have applied to construct a similar facility on Shelburne Road in South Burlington, north of Holmes Road, on a 2.2 acre parcel. The requirements of the South Burlington Zoning regulations limit the maximum trip generation rate from this proposed car wash to 48 trip ends per hour during periods of peak traffic volumes on Shelburne Road. Because of the physical similarity between the existing (Essex Junction) and the proposed (South Burlington) car Hashes, the trip generation rates at each location should not differ significantly. Both are located on major arterial streets Kith traffic volumes in excess of 20,000 vehicles per day, further reducing potential differences in trip generation rates between the two locations. t.� Traffic volumes at the existing car wash Here obtained by placing an automatic traffic counter at this location from Friday, July 26th to(,? Thursday, August 1, 1985. Peak traffic volumes Here observed to occur on Saturday and Sunday mornings, with an average of15 vehicles per hour 30 trip ends) using the facility betwe6-K—"1t`Y0'-h. m. -1: 00 p. m. on Saturday. Traffic volumes on Keekdays were observed o peak at a maximum of 10 vehicles per hour ( 20 trip ends) between 12: 00-1: Od p.'m. "amd 4:00-5: 00 p. M. Design 0 Inspection 0 Studies 0 Permitting Mr. Rocky Cleborne FILE: 85079 August 2, 1985 Page Tao It is widely recognized that car Hashes, particuarly those in northern climates, experience seasonal variations in their customer volume. The magnitude of these seasonal variations have been documented by yourself by maintaining daily customer volume records at the Essex Junction facility --� during 1984. From these records and our recent traffic count, Re have �(p calculated the annual average, peak vehicle generation rates to be 41 rip �---- ends per hour on Heekdays and 61 trip ends per hour on weekend morn gs.-�� Seasonal variations also occur in traffic volumes on highways. Appendix A illustrates monthly variations in traffic volumes at your Essex Junction facility and the same for volumes on urban highways. The urban highway trarfic volume information Has obtained from automatic traffic recorder grouping studies prepared by the Vermont Agency of Transportation. Rhen compared, it becomes evident that car -Rash generated volume patterns differ significantly from adjacent street traffic volume patterns. Your peak months are December through February, Rhen adjacent street traffic volumes are at their lowest. Summer months, when adjacent street traffic volumes are at their highest, are your slow periods. This comparison Hill hopefully alleviate any concern which may exist about potential impacts of seasonal variations in car wash traffic volumes on adjacent street traffic flow. He Rish to thank you for this opportunity to be of service. As requested, Re are planning to attend the August 6th meeting of the South Burlington Planning Commission to answer any questions concerning the potential traffic impacts of your proposed car wash. Should you have any questions concerning the above conclusions before this meeting, please feel free to contact us. Sincerely, FITZPATRICR-LLERELLYN INCORPORATED f I R Tgrj Dickinson P. E. , RJD: amo FITZPATRICK-LLEWELLYN INCORPORATED Engineering and Planning Services 1.00 SEASONAL VARIATIONS IN TRAFFIC VOLUME 2.0 1.9 1.8 1.7 1.6 1.5 1.4 / 1.3 1.2 ��� ���14 looloso 0.8 0.7 0.6 0.5 0.4 CAR WASH TRAFFIC o o ADJACENT STREET TRAFFIC o..—mm—e FITZPATRICK-LLEWELLYN INCORPORATED [ngineering and Planning Services d ROCKY'S CAR WASH 124 PEARL ST. ESSEX JCT. VT DATE SAT SUN NON TUES WED THURS FRI 1/1/84 243 78 237 242 313 119 1/7 136 240 258 0 70 120 237 1/14 97 124 140 204 245 117 342 1/21 300 310 416 152 323 449 316 1/28 <::743 517 99 33 248 226 454 2/4 307 157 0 24 98 60 257 2/11 149 146 208 165 0 302 275 2/18 330 159 85 95 232 339 277 2/25 287 207 182 0 0 60 75 3/3 100 139 32 94 156 100 165 3/10 387 117 134 7 0 168 275 3/17 183 110 17 49 153 90 116 3/24 569 381 243 235 222 24 0 3/31 449 402 257 237 115 91 51 4/7 0 0 0 160 103 152 182 4/14 112 8 0 92 34 80 90 4/21 120 102 87 10 14 126 166 4/18 188 134 27 44 43 97 0 5/5 35 112 81 0 21 76 77 5/12 24 96 24 34 15 104 173 5/19 47 57 60 48 27 72 115 5/26 73 71 4 0 0 33 117 6/2 156 72 93 90 37 51 141 6/9 144 92 100 110 108 35 103 6/16 130 73 27 57 68 59 122 6/23 125 10 19 40 30 60 95 6/30 104 63 91 67 75 0 88 7/7 19 49 44 46 0 44 84 7/14 71 43 35 44 0 66 88 7/21 84 53 52 87 102 91 126 7/28 67 0 55 56 14 61 127 8/4 123 53 69 33 81 56 80 8/11 0 115 43 53 44 53 102 8/18 120 350 63 52 56 18 55 8/25 107 86 63 50 61 62 61 9/1 105 55 19 18 71 77 120 9/8 141 113 45 0 38 27 48 9/15 0 60 81 51 58 31 25 9/22 161 73 92 67 41 48 75 9/29 102 92 0 0 0 88 101 10/6 143 104 38 24 60 138 152 10/13 214 174 75 103 95 92 185 10/20 214 35 0 45 77 84 218 10/27 75 123 89 93 61 65 100 11/3 220 110 0 44 55 84 73 11/10 20 94 7 61 0 143 218 11/17 402 58 102 170 466 218 283 11/24 324 445 457 351 267 50 102 12/1 0 198 16 18 77 0 53 12/8 44 210 110 165 215 246 357 12/15 212 285 412 256 254 268 413 12/22 65 366 321 0 102 105 10 12/29 36 189 317 8364 7675 5367 4171 4974 5619 7684� �a(7 19% 17.5% 12.2% 9.5% 11.3% 12.8% 17.5% Q Average cars per hour during weekdays = 9.8 cars per hour 1.y� Average cars per hour during weekends = 13.5 cars per hour Peak cars per hour during week = 38.5 cars per hour yio b� Peak cars per hour during weekend = 62 cars per hour �Pam- 236 days open during week 12 hours open each day 99 days open during weekend 12 hours open each day q- to ern — w�4,►. tare. 6" dv UNw imfO&cf re . $C,o �d1��DUGU" � CL&L=t eX- 6 I DATE 1/1/84 1/7 1/14 1/21 1/28 2/4 2/11 2/18 2/25 3/3 3/10 3/17 3/24 3/31 4/7 4/14 4/21 4/18 5/5 5/12 5/19 5/26 6/2 6/9 6/16 6/23 6/30 7/7 7/14 7/21 7/28 8/4 1 8/11 8/18 1 125 104 ROCKY' S CAR WASH SAT SUN MON 243 78 136 240 258 97 124 140 300 310 416 743 517 99 307 157 0 149 146 208 330 159 85 287 207 182 100 139 32 387 117 134 183 110 17 569 381 243 449 402 257 0 0 0 112 8 0 120 102 87 188 134 27 35 112 81 24 96 24 47 57 60 73 71 4 156 72 93 144 92 100 130 73 27 10 19 63 91 19 49 44 71 43 35 84 53 52 67 0 55 23 53 69 0 115 43 20 350 63 124 PEARL ST. TUES WED 237 242 0 70 204 245 152 323 33 248 24 98 165 0 95 232 0 0 94 156 7 0 49 153 235 222 237 115 160 103 92 34 10 14 44 43 0 21 34 15 48 27 0 0 90 37 110 108 57 68 40 30 67 75 46 0 44 0 87 102 56 14 33 81 53 44 52 56 ESSEX JCT. VT THURS FRI 313 119 120 237 117 342 449 316 226 454 60 257 302 275 339 277 60 75 100 165 168 275 90 116 24 0 91 51 152 182 80 90 126 166 97 0 76 77 104 173 72 115 33 117 51 141 35 103 59 122 60 95 0 88 44 84 66 88 91 126 61 127 56 80 53 102 18 55 8/25 107 86 63 50 61 62 61 9/1 105 55 19 18 71 77 120 9/8 141 113 45 0 38 27 48 9/15 0 60 81 51 58 31 25 9/22 161 73 92 67 41 48 75 9/29 102 92 0 0 0 88 101 10/6 143 104 38 24 60 138 152 10/13 214 174 75 103 95 92 185 10/20 214 35 0 45 77 84 218 10/27 75 123 89 93 61 65 100 11/3 220 110 0 44 55 84 73 11/10 20 94 7 61 0 143 218 11/17 402 58 102 170 466 218 283 11/24 324 445 457 351 267 50 102 12/1 0 198 16 18 77 0 53 12/8 44 210 110 165 215 246 357 12/15 212 285 412 256 254 268 413 12/22 65 366 321 0 102 105 10 12/29 36 189 317 8364 7675 5367 4171 4974 5619 7684 190 17.5% 12.2% 9.5% 11.3% 12.8% 17.50 Average cars per hour during weekdays = 9.8 cars per hour Average cars per hour during weekends = 13.5 cars per hour Peak cars per hour during week = 38.5 cars per hour Peak cars per hour during weekend = 62 cars per hour 236 days open during week 12 hours open each day 99 days open during weekend 12 hours open each day -� . -11 � L.� c�l H 1\1N Wagner, Helndel, and Noyes, Inc. consulting geologists 285 North Street, Burlington, Vermont 05401 802-658-0820 July 22, 1985 Ms. Jane Bechtel City Planner South Burlington, VT 05401 Dear Jane: This is to inform you that we have met with Mr. Dwight Baker of Wiemann-Lamphere Architects to discuss plans for Rocky's Car Wash located at the site of the Mollendi's Chain Saw repair shop. We will be reviewing the hydrologic calculations which have been performed and using the TR-20 computer model to assess the impact of this development on peak streamflows and runoff volumes in the North Brook watershed. Our final analysis will be completed pending the receipt of a final site plan from Wiemann-Lamphere. Please contact me if you have any questions. Sincerely, effreV A. Nelson Wagner, Heindel, and Noyes, Inc. cc: James Lamphere JAN:smm G s � � l�7/1t S • ij. —V-o-Yoq, S'6' `1 Cn a v) p' b• AnS� " o�, ��oo'SL �, SL S'L;K Q �i1 .� �amacJ City of South Burlington `* out4 Nurtington NICE Department 575 Uaraet street ur616 i�aut4 Nurliugtau, Vermont 05401 o -so OFFICE OF JAMES W. GODDETTE, SR. CHIEF 863-6455 July 17,1985 MEMORANDUM -------------- TO: SO. BURLINGTON PLANNING COMMISSION FROM: CHIEF JAMES W. GODDETTE S RE: JULY 24,1985 AGENDA ITEMS 1. ROCKYS CARWASH SHELBURNE ROAD PLANS HAVE BEEN REVIEWED BY THIS DEPARTMENT AND AT THIS TIME I DO NOT SEE A PROBLEM WITH GIVING PROPER FIRE PROTECTION. 2. CALKINS LOT#1 BROCKWAY AIR OFFICE PLANS HAVE BEEN REVIEWED BY THIS DEPARTMENT A NUMBER OF TIMES WITH NO CHANGES WHICH WOULD EFFECT US FROM GIVING PROPER FIRE PROTECTION. 3. AIRPORT AUTOMATED FLIGHT SERVICE NEED MORE INFORMATION. HAVE TALKED TO MR. MARK LANDON WHO WILL GET ME WHAT IS NEED TO DO A PROPER REVIEW SO I WILL BEABLE TO DO IT WITH THE CHIEF AT THE AIR BASE. IF YOU HAVE ANY QUESTIONS PLEASE FEEL FREE TO CALL ME. City of South Burlington 575 DORSET STREET SOUTH BURLINGTON, VERMONT 05401 PLANNER 658-7955 July 19, 1985 Dennis Webster Wiemann-Lamphere Architects 289 College Street Burlington, Vermont 05401 Re: Rocky's Car Wash, Shelburne Road Dear Dennis: ZONING ADMINISTRATOR 658-7958 Enclosed are the agenda and a copy of my memo to the Planning Commission. You must have the assessment of hydrological im- pact completed by Wagenr, Heindel & Noyse prior to the meeting. Sincerely, Jane S. Bechtel, City Planner JSB/mcg Encls r ITLl L CiT ILIO 0 X) ,,�,� C3 `OA L A c)-Vk ri I "I � L( 0 o/ OD 3 &) ;Es o FED, AI May 10, 1985 Ms. Jane Bechtel City Planner City of South Burlington 575 Dorset St. So. Burlington, Vermont 05401 Re: Car Wash - Shelburne Road Dear Jane: I have a client, Rocky Clayburn, who is interested in the Brothers Two Site on Shelburne Road just south of the site that was developed by the Crane Family a few years ago. The intent is to provide a car wash on the site and obviously with this kind of use, the available sanitary sewer capacity is of great concern to us and I think an issue which we need a reaction on before we develop a great deal of plans for Site Plan Approval. What I am requesting is that you research this and give us some idea of our availability of approximate) 42'60 gallons per day or use such as this. The system that we intend o ins a wit1Tr1i the building is called International Autowash Systems and they use, in the neighborhood of 50 gallons of fresh water per car and have a reclaiming system which would reduce the waste water per car to 25 gallons per car, per wash. We would appreciate it if you could review the above comments and let us know if the capacity is available for this kind of use. We look forward to hearing from you. Very my yours, Wft N-LAMPHE E A ECTS, INC. ames A. La ere CWIEMANN-LAMPHERE, ARCHITECTS • 289 COLLEGE ST. • BURLINGTON, VERMONT 05401 • 802-864-0950 846—Car Wash Description: The car wash facilities cited are semiautomated facilities in which the auto- matic washing operation is preceded by inte- rior cleaning and vacuuming by car wash per- sonnel and followed by damp toweling to re- move water and catch dirty spots which were missed by the automatic washing. Most facilities also have a car waxing capability in which the wax is applied automatically in liquid spray form at the end of the automatic wash cycle. Gasoline is usually available for purchase a is Me amount of purchase qualifies the customer for a discount on the car wash. SUMMARY OF TRIP GENERATION RATES Land Use/Building Type Car Wash _ ITE Land Use Code _-B Independent Variable —Trips per Site - Average Trip Rate Maximum Rate Minimum Rate Correlation Coefficient Number of Studies Average Size of Independent Varleble/Study Average Weekday Vehicle Trip Ends Peak Hour of A.M. Between 7 and 9 Enter Exit Total Adjacent Street Traffic P.M. Between 4 and 6 Enter Exit Total 110 1158 86 Peak Hour of A.M. Enter Exit Total Generator P.M. Enter 66 Exit 66 Total " "1 Saturday j/ehicle Trip Ends (5eak Hour of Generator Enter Exit Il Total Sunday Vehicle Trip Ends Peak Hour of Generator Enter Exit Total Source Numbers ITE Technical Committee 6A-6—Trip Generation Rates Date: hey, 1982 ---- H 1\1NWagner, Herndel, and Noyes, Inc, consulting geologists 285 North Street, Burlington, Vermont 05401 802-658-0820 i September 24, 1985 Ms. Jane Bechtel Lafleur City Planner So. Burlington, VT 05401 Dear Jane: Enclosed please find two copies of our report on impacts of the proposed Rocky's Car Wash development at 1342 Shelburne Road on the hydrology of North Brook. Please contact me if you have any questions. Sincerely, effre� A. Nelson Wagner, Heindel, and Noyes, Inc. cc: Dwight Baker, Weimann-Lamphere Architects H VN J J Wagner, Heindel, and Noyes, InC. consulting geologists 285 North Street, Burlington, Vermont 05401 802-658-0820 REPORT/ANALYSIS OF HYDROLOGIC IMPACT OF ROCKY'S CAR WASH DEVELOPMENT ON NORTH BROOK Prepared by: 4ef y A. Nelson Project Geologist Reviewed by: r � 1 1�s Jeffrey E. Noyes Principal Date: September 24, 1985 REPORT/ANALYSIS OF HYDROLOGIC IMPACT OF ROCKY'S CAR WASH DEVELOPMENT ON NORTH BROOK This report presents the results of our analysis of the hydrologic impact by the proposed Rocky's Car Wash development on North Brook. The location of the proposed Rocky's Car Wash development is at 1342 Shelburne Road, in subwatershed 3 of the North Brook watershed. The site is presently occupied by Melendy's Chain Saw Shop and a private residence. The hydrologic model for North Brook has recently been revised to r more closely reflect the current drainage patterns within this J area. A portion of the watershed surrounding the Rocky's Car Wash site is shown on the schematic on page 1 of the Attachment. Hvdroloaic Analvsis To evaluate the impact of the proposed Rocky's Car Wash development, we have examined the runoff response at section 3, which is located just to the south of the site, on the small tributary from the site which feeds into North Brook. The design storm for this analysis was 25 year, 24 hour rainfall of 4.0 inches. In its existing condition, the site is not heavily developed, and does not appear to be contributing to the erosion problem in 2 North Brook. Although the curve number is relatively high (CN=81), this is due to the fact that the underlying soils in the area are predominately clay, and do not have the ability to absorb large amounts of water. However at this time, two small ponded areas exist on the site as shown on the site sketch (Attachment, page 2). These ponds serve to provide some buffering to peak stream flows during large storm events. The filling of these ponds as a result of the development will eliminate this existing buffering capacity. However, it does not appear that any flow enters the site from upslope areas. Although a 12 inch corrugated metal pipe was found at the northern end of the northerly pond, field examination, as well as interviews with local residents, revealed that this pipe is no longer functional. Therefore the ponds serve to buffer only runoff from the site itself. We have used the TR-20 hydrologic model, and modified the North Brook data file for subwatershed 3 to reflect the changes in hydrologic response resulting from the proposed development. The modifications which were made to the data file are shown on page 3 of the Attachment. Computer runs were then made for both the pre -development (existing) as well as the post -development conditions. These runs reveal that the projected peak discharge during the 25 year, 24 hour storm event is 6.00 cfs in the existing condition and would be 8.92 cfs following the W development of the site, with no detention provided. The output generated from the computer runs is included on pages 6-15 of the Attachment. The expected runoff hydrograph during thedesign storm is shown on page 4 of the Attachment. An expanded plot of the portion of the runoff hydrograph which exceeds the pre -development peak of 6 cfs is provided on page 5 of the Attachment. From this information, we have computed that a minimum storage volume of 1460 cubic feet would be required on the site to prevent any increase in the peak discharge or velocity from the site. The maximum volume required would be ` 5213 cubic feet, which equals the total volume of increased J runoff from the site. The final design volume will likely be between these two extremes, with a maximum discharge rate of 6.00 cfs for the expected maximum water surface during the 25 year, 24 hour storm. A spillway should be provided to allow passage of larger storms without damage to the structure. It should be noted that this analysis assumes that the runoff from all modified portions of the site are routed through a stormwater detention structure. However, the proposed detention Nona areas shown on the site plan developed by Weimann-Lamphere Architects (dated July 5, 1985) would in fact service only a portion of the impervious area on the site. In this case, it may be necessary to overdesign the detention capacity for certain portions of the site, so that runoff from other portions 4 of the site can be released without detention. Therefore it will be important for us to review the final design of the basins to include the proposed outlet structures. This concludes our report on the proposed Rocky's Car Wash development. 1 ATTACHMENT ." awls& ...... 1 tI W-.009/0'a e �2 Ji, Yf i� I, (ZaLhV�S c2 w Ioc�na�l MPE l Ott-• SITE l,o c--'a"T lanJ Cl 07 �It z �� YN 8 10 x CI09 y f I —I V c20 lY C23 24x 40' • C25 16�� r IN C25 i 16" x 85' i T— N M N �r / — N / g A R T L E TT BROOK C10 65" x 515 H 1 WN Wagner, Heindel, and Noyes, Inc. Consulting Geologists Burlington, Vermont ,. 11.liV`�-L IZ..A,-,T . , ,.^./ Y 0 P PAGE OF age No. PROJECT: ''r LA,,2 W*-Sti DATE �C A,-i i , - 1 U A �-'% H i W N Wagner, Heindel, and Noyes, Inc. Consulting Geologists Burlington, Vermont i ` k,Sl(lNw w�C. LVLPr�2At JL�6TIC�S v c S k TIF, QO�L'S"►pN OF Sv6WArT�-t'Z..`�r��p `j�i`.� � t�,:.�t, Ti1 ��.;... wAA "-N'� = e.xLkjk Cv N DIT►Q r-a T\A&F- QF D' IS A( �urZ SugwA'sF.�t.SNEO y M Page No. PAGE OF PROJECT (ZoU,t�`5 CR'n-I,JR'S1� DATE �' �16-:ice i V .T L — t't IAtl.�w►lft�• P��n,. 7�sGwt^2.,c F2UM 5 ti. z L,00 cam. 2E�, (LC.D Sr43 CL4-G VoLU M Iy tod k zpessA vN In ��nna�,JJ�I.w ntiC�ktErz Coe, ?Vr-TtdNS; C-vuir titZM t3 N �1 ICrJ No Text No Text � � ROCK"t''S CAR WASH // NORTH BROOK // PREDEUELOPMENT � � �~ 6 RUNOFF l 001 6 0.0390 79, 0,42 1 ) 6 REACH 3 005 6 5 1100. 1 6 RUNOFF 1 002 7 0,0183 89. 0,19 1 & ^ 6 ADDHYD 4 005 5 7 6 1 � 6 P,UNOFF 1 003 5 0'O033 81. 0.15 1 1 1 6 REACH 3 004 5 4 400. 1 1 � 6 RUNOFF 1 004 5 0.0051 83. 0.32 1 l � 6 ADOHYD 4 004 5 4 7 1 1 6 REACH 3 005 7 4 350, 1 � 6 ADDHYO 4 005 6 4 7 1 � 6 RUNOFF 1 005 5 0.0430 64- 0.59 2 6 ADDHYD 4 005 5 7 6 1 � 6 RESVOR 2 01 6 7 145.0 1 � 6 REACH 3 008 7 5 1300. l 6 RUNOFF 1 008 7 0'0407 88, 0'56 1 � ' 6 AQOHYD 4 008 7 6 1 � 6 RUNOFF 1 006 2 0.0456 72, 0'43 1 6 RUNOFF 1 007 3 0'0282 92' 0'22 1 � 6 ADDHYD 4 007 2 3 4 1 � 6 RUNOFF 1 007 2 0,0161 69. 0'56 1 6 ADDHYD 4 007 2 4 3 1 � 6 REACH 3 008 3 4 700, l � 6 ADUHYD 4 008 4 6 7 1 6 RESUOR 2 02 7 6 120'0 1 � 6 REACH 3 009 6 5 400,0 1 � 6 RESVOR 2 03 5 4 113. 0 1 ^� 6 REACH 3 010 4 6 600'0 1 1 1 u ~ 6 RUNOFF 1 010 2 0,0593 77. 0.30 1 � 6 ADDHYO 4 010 2 6 li 1 ENDATA � 7 BASFLO 5 0-01 ) 7 lNCREM 6 0.10 7 COMPUT 7 001 010 4'0 1.0 2 2 01 01 | k , ENDCMP 1 � ENDJOB 2 OF 80-80 � � > � � � � � ' > � , � � ^ 1 & TR20 XEO 9-17-85 REV 05/02/83 NORTH BROOK REVISED 9-1;7-85 8 ° EXECUTIVE CONTROL OPERATION BASFLO + NEW BqSEFLOW = 'Ol CFS h EXECUTIUE CONTROL OPERATION lNCREM ^ X ^ + MAIN TIME INCREMENT = .10 HOURS � ~ EXECUTIVE CONTROL OPERATION COMPUT 'JOB 1 PASS l PA LGE 13 RECORD {D RECORD ID RECORD lO i + FROM XSECTlON 1 � + TO XSECTlON 1, 1) ~ START lNG TlME = '0U RAIN DEPTH = 4.00 RAIN DURATION= 1.00 RAIN TABLE NO'= 2 ANT' MOIST. COND= 2 ALTERNATE NO,= 1 STORM NO.= 1 MAIN TIME INCREMENT = .10 HOURS OPERATION RUNOFF CROSS SECTION 3 ^ � PEAK TTME(HRS) PEAK DlSCHARGE(CFS) PEAK EL.EU ION(FEET) 11'99 6.00 (RUN F) � TIME(HRS) FIRST HYOROGRAPH POINT = '00 HOURS TIME INCREMENT = .1O HOURS DRAINAGE AREA = '0U SU.Ml' ^� 8.00 DlSCHG .00 ,00 .OU ,00 .01 -Ul .01 '01 .02 '02 & 9'011 D[SCHG 0� ' 02 ' 0� ' 03 ' 83 ' 0 ' ^ U4 U4 ' 05 ' 05 ' ~ 10'00 DlSCHF, '05 .06 .07 ,07 .88 ,04 '11 .12 '14 .16 11.00 DISCHG .18 .20 .23 '25 .30 ,3' ,84 1.46 2,10 4.63 � 12,00 D)SCHG 5.99 4.05 ' 1 7U ' 1 18 ' . 84 74] ' . 67 61 ' 59 ' 5l ' ^ 13.00 O[SCHG .48 .44 ,41 .40 .36 ,35 .32 .30 .29 .28 14.00 DISCHG .27 .26 ,25 '24 .22 .22i '21 .19 '19 .19 � 1l;.00 DTSCHG .19 .19 .19 .19 .17 .17 '17 .17 .17 .17 16.UU OISCH� '17 .17 .27 17 17 .171, 15 14 14 14 17,00 DlSCHG .14 ,14 .14 .14 .14 'l .14 .14 .14 .12 � 18'00 D)SCH� '11 , 11 , 11 11 ' , 11 , 11i . 11 , 11 . 1l . 1l " 19. no D{SCHG '11 .11 '11 .11 .11 .11� .11 .11 .11 ,09 20.00 DlSCHG .09 '09 .08 .08 .08 .08) .U8 .08 '08 '08 � 21.00 DlSCHG .09 , 09 09 ' , 09 . 09 09 . � . O9 , U9 , O9 09 ' ~ 22.00 D[SCHG .09 .09 .09 ,09 ,09 .O9� ,09 .09 '09 '09 23,00 D[SCHG .09 -09 ,09 ,09 '09 ,89) 'U9 .09 .08 .06 24-00 OlSCHG .86 .03 0l U0 y � , ' � ' OPERATION REACH CROSS SECTION 4 � PEAK TIME(HRS) PEAK Dl SCHARGE(CFS ) PEAK ELEVATION(FEET) 12.09 6.00 � � OPERATION RUNOFF CROSS SECTION 4 � PEAK T(ME(HRS) PEAK DlSCHARGE(CFS) PEAK ON(FEET) 12'09 7'81 (RUN14F) � , � ^ 1 TR20 XEO 9-17-85 NORTH BROOK REWlSED 9-17-85 REu 05/02/83 JOB l PASS 1 PAGE 12 � � ~ OPERATION ADOHYD CROSS SECTION 4 PEAK TlME(HRS) PEAK DlSCHARGE(CFS) PEAK ION(FEET) 12'09 13'81 OPERATION REACH CROSS SECTION 10 � PEAK TlME(HRS) PEAK DlSCHARGE(CFS) PEAK ELEUAT{ON(FEFT) 12.96 100'98 102,32 18.18 9'29 100-55 20,00 2'72 100'49 23.99 5'95 100.38 � TIME(HRS) FIRST HYDROGRAPH POINT = 'OO HOURS TIME INCREMENT .10 HOURS 'OD DISCHG ,01 .01 .02 .O1 '02 '01 '02 1-00 DlSCHG '02 '01 ,02 .02 '01 .02 � 2'00 DlSCHG '02 .01 .82 '01 '02 . ,02 3'00 DlSCHG ,02 .Ol .02 .Ol '02 .D '02 4'00 DlSCHG .02 .01 ,02 .03 .05 , .08 � 5'00 D[SCHG ,14 .15 '17 -18 '20 .211 '24 6'00 DISCHG '34 .37 '41 '43 ,49 ,613 7,00 DlBCHG '85 '89 '94 '98 1.03 1'O6 1'11 � 8.00 D{SCHG 1'36 1.30 1.39 1,38 1.48 1' 1'75 � 9'DO DISCHG 2'30 2'39 2.47 2,56 2.71 2.93.1 3'11 ~, 10'00 DISCHG 3,82 4.03 4.20 4-36 4'136 4.86j, 5'15 ' M 11.00 DISCHG 7'67 8'46 9.52 10'59 11.68 13. 14'30 12.00 D[SCHG 38'14 61.92 93.43 100.80 100.82 100. 15 100'89 13'00 DlSCHG 1OO.g8 100,98 100.94 100,92 100-89 100,8 1UO'84 � 14.00 DlSCHG 27'21 23.50 21.98 30'88 19.74 18.84 18'07 15'00 OlSCHG 14,98 13'75 13.89 13.00 13.40 12'73 13'17 16'00 DlSCHC 11'78 11.12 11'49 10.97 11.40 10.9 11'38 � 17.00 DlSCHG 10'83 10.04 10'13 9'50 9'76 9.30 9'63 18.00 OISCHG 9'57 9.17 9,22 8.49 8'46 7'81� 7.98 19.00 DISCHG 7.74 7.45 7.72 7.45 7.71 7'46 7'72 20.00 DlSCHG 7'72 7'44 7'37 6'75 6.60 6'09 6,12 21'00 DlSCHG 5'87 5.68 5.84 5'66 5'84 5.66 5'83 22.08 DlSCHG 5'83 5'68 5.83 5.69 5.84 5.70 5,84 23'00 DISCHG 5.84 5'72 5.84 5.72 5'81.5 5'73 5'85 24'00 DISCHG 5'815 5.69 5'50 4'96 4.36 3.17 2'29 25'00 DlSCHG ,38 .13 .36 .01 ,36 .01 ,35 ' 8 26'00 DISCHG .35 .01 .34 .01 '34 .01 .34 27-00 DISCHG '33 ,01 '33 '01 .33 .01 '32 28'00 OlSCHG ,32 .01 .31 .01 .31 .01 .31. � 29,00 DlSCHG .30 '01 .30 .Ol .30 ,01. '29 � EXECUT[UE CONTROL OPERATION ENOCMP + COMPUTATIONS COMPLETED FOR PASS 1 DRAINAGE AREA = .81 .O2 .O1 .O2 .O1 '02 .01 .U2 .O9 .11 ,25 ,29 '7O '76 1.14 1'19 1.93 2'O9 3.215 3.38 5.64 6.l5 18.16 18'33 100,92 100'95 100'81 93'30 18'48 16'45 12.32 12.43 18.94 11.36 9'24 9'59 7.57 7.81 7.47 7'72 5.80 5.94 5.67 5'83 5'7U 5'84 5.74 5-85 1.35 -92 'U1 .31.5 .O1 '33 .01 '32 'U1 '30 .O1 '29 RECORD lO � � r � ^ EXECUTIVE CONTROL OPERATION END -JOB l TR20 XEQ 9-17-85 NORTH BROOK REVISED 9-17-85 � ~ REV 05/02/83 ~_ SUMMARY TABLE l - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS IN THE ORDER PERFORMED ( A STAR(*) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TOP HYDROGRAPH & � A QUESTION MARK(?) INDICATES A HYDROGRAPH WITH PEAK AS LAST POINT.) RECORD ID JOB 1 SUMMARY PAGE 14 SECTION/ STANDARD RAIN ANTEC MAIN PRECIPITATION PEAK DISCHARGE V ~ STRUCTURE CONTROL DRAINAGE TABLE MOIST TIME ------------------------- RUNOFF -------------------------------------- [D OPERATION AREA CONO }NCREM BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE RATE _ (SO MI) (HR) (HR) (IN) (HR) ([N) (FT) (HR) (CFS) (CSM) � ALTERNATE 1 STORM 1 X ~ + XSECTION 1 '039 2 2 '10 .0 4.00 24'00 1.96 .00 12.15 & + RUNOFF ___ � XSECT[ON 5 .039 2 2 '10 .0 4,00 24,00 1-96 148.20 12'25 + REACH � XSECTION 2 ' U18 2 2 . 10 U ' 4.00 24.00 ' 2.83 . 00 12.81 ^" + RUNOFF --- XSECTIOW 5 '0157 2 2 .10 .0 4.00 24'00 2.24 146'40 12.10 � + ADDHYD � X SECTION 3 .003 2 2 '10 '0 4'08 24'00 2'12 .00 11'99 + RUNOFF ___ � XSECT[ON 4 ,003 2 2 ,10 'O 4'00 24.00 2'11 155'135 12.09 .� + REACH XSECT[ON 4 .005 2 2 '10 .O 4'00 24'00 2'28 '00 12'09 � � + RUNOFF ___ KSECTlON 4 .008 2 3 .10 .0 4.00 24-00 2'21 195.73 12'09 + ADDHYD � � XSECTION 5 '008 2 2 '10 .O 4'00 24'00 2'22 145.73 12'19 + REACH X5ECTlON 9 '066 2 2 '10 'O 4'00 24'00 2'24 146.51 12.13 � + ADDHYD XSECT[ON � .U4� � 2 .1U '0 4'O0 �4.U0 '97 'OO 12.30 � ~ . + RUNOFF - --- NSECTION 15 .109 2 2 .18 .0 4'00 24-00 1'74 146.59 12'16 + ADDHYD � - STRUCTURE 1 ,109 2 2 '10 .O 4'00 24.00 1,74 147.67 1.2'20 + RESUUR XSECTlON 8 '109 2 2 .10 .O 4'00 24.00 1'73 120.84 12'30 � ~ + REACH XBECT[ON 8 '041 2 2 .10 .O 4'00 24'00 2'73 ,UU 12.22 + RUNOFF _-- XSECTlON 8 '149 2 2 ,10 'U 4'00 24.00 2'00 121.65 12'26 + ADDHYD � ' XSECT{ON 6 .046 2 3 .10 .O 4.00 24.00 1,46 .UO 12'17 + RUNOFF ___ � XSECT[ON 7 '028 2 2 '10 'O 4.00 24'00 3,12 .00 12,02 + RUNOFF ___ XSECTION 7 .074 2 2 .10 .0 4'00 24'00 2'10 1546'64 12,07 + ADDHYD � � 44.53 1141'9 44.54 1142,1 40'05 2188'3 64.48 1125'3 6'00 1818,8 6.00 1.818.7 7'81 1530.8 13,81 1643-9 13'81 1643'9 76.23 1160.3 17.08 397'2 89,16 820'2 88'15 811'0 88.15 811-0 54,18 13�1.3 140.64 941'3 36.88 808'8 63'94 2267.3 93.5;7 1267'9 � v %SECTlON 7 + RUNOFF ~ XSECTlON 7 + ADDHYD �XSECT[ON 8 REACH XSECTlON 8 + ADDHYD � `~ STRUCTURE 2 + RESN]R XSECT[ON 9 v + REACH STRUCTURE 3 0 ^ + RESVOR XSECTION 10 + REACH & ~ �SECTION 1O + RUNOFF XSECT{ON 10 � ^ + ADDHYD l � � � � ° � . � ~ & � ~~ � k & � ~ ' � � .016 2 2 .10 .O 4,00 24,00 1.27 .00 12.26 9.29 576.8 .090 2 2 .lU .0 4'00 24.00 1.95 1744.30 12,07 100.16 1114.1 '090 2 2 .10 .0 4,00 24.00 1,94 121.02 12.17 180.16 1114.1 .239 2 2 .10 .0 4.00 24.00 1.98 123.13 12.21 237'25 991,4 .239 2 2 .lU .O 4,00 24'00 2,02 664,40 12.40 184.03 769.0 .239 2 2 .10 .0 4.00 24'00 1.95 117.53 12.51) 184,03 769,0 .239 2 2 .10 .0 4'00 24.00 1,99 122.85 12.86 100.98 422.0 .239 2 2 .10 .0 4.00 24'00 1-98 102.37 12.96 100.98 422,0 .059 2 2 .10 .0 4,00 24.00 1.81 .OU 12.09 74.35 1253,8 ,299 2 2 .10 '0 4.00 24'00 1'94 102.98 12.20 148.93 498'8 � , ROCKY'S CAR WASH // NORTH BROOK POSTDEUELOPMENT // NO DETENTION � 6 RUNOFF 1 001 6 0'0390 79' 0.42 1 6 REACH 3 005 6 5 1100. 1 � 6 RUNOFF 1 002 7 0'0183 89' 0'19 1 � ' 6 ADDHYD 4 005 5 7 6 1 6 RUNOFF 1 UO3 5 0.0033 89, 0.044 l 1 1 6 REACH 3 004 5 4 400. 1 1 � 6 RUNOFF 1 004 5 0.0051 83. 0.32 1 1 6 ADDHYD 4 004 5 4 7 1 1 6 REACH 3 005 7 4 258. l � 6 ADDHYD 4 005 6 4 7 1 6 RUNOFF 1 005 5 0.0430 64, 0.59 1 6 ADDHYD 4 005 5 7 6 1 � 6 RESUOR 2 01 6 7 145'0 1 6 REACH 3 008 7 5 1300' 1 6 RUNOFF 1 008 7 0.0407 88, 0.56 l � , 6 ADDHYD 4 008 5 7 6 1 6 RUNOFF 1 006 2 0.0456 72. 0.43 l 6 RUNOFF 1 007 3 0'0282 92' 0'22 1 � , 6 ADDHYD 4 007 2 3 4 1 6 RUNOFF 1 007 2 0.0161 69. 0.56 1 6 ADDHYD 4 007 2 4 3 1 � 6 REACH 3 008 3 4 700. 1 6 ADDHYD 4 008 4 6 7 1 6 RESVOR 2 02 7 6 120.0 1 � 6 REACH 3 009 6 5 400.0 1 6 RESUOR 2 03 5 4 113'0 1 6 REACH 3 010 4 6 610.0 1 1 l 6 RUNOFF 1 010 2 0'0593 77. 0'30 1 � 6 ADDHYD 4 010 2 8 5 1 ENDATA � 7 BASFLO 5 0.01 7 lNCREM 6 0'10 7 COMPUT 7 001 010 4.0 1,0 2 2 01 Ol ! � ~ ENDCMP 1 ENDJOB 2 8 OF 80-80 LlST******************************** 1 � ^ EXECUTIVE CONTROL OPERATION BASFLO + NEW BASEFLOW '01 CFS � EXECUTIVE CONTROL OPERATION lNCREM + � , EXECUT[UE CONTROL OPERATION COMPUT ^ � + FROM XSECTION 1 + TO �9FrT�Om 1O �� �������� �� RAIN DEPTH = 4'00 RAIN DURATION= 1'00 RAIN TABLE NO'= 2 STORM NO'= 1 MAIN TIME INCREMENT '10 HOURS STARTING TIME ~ '00 ALTERNATE NU'= 1 OPERATION RUNOFF CROSS SECTION 3 MAIN TIME INCREMENT = .10 HOURS RECORD (D RECORD {D RECORD ID | ANT' MOIST, CONO= 2 � PEAK TlME(HRS) PEAK DISCHARCE(CFS) PEAK ELEVATION(FEET) 11.95 8.92 (RUNOFF) � T[ME(HRS) FIRST HYDROGRAPH POINT = .00 HOURS TIME INCREMENT = .18 HOURS DRAINAGE AREA = ,U0 SO. Ml. � 5,00 DISCHG ,OO .00 .00 .01 .02 .01 .01 .01 ,01 '01 � 6.00 DlSCHG .01 .02 .02 .02 .02 .05 ,03 .03 ,03 .03 � 700 DISCHG .O3 .04 ,04 .04 .04 .04 .04 .1.15 .05 .015 � 8'0U D[SCHG ,05 .06 ,06 .07 .08 .0@ .08 .08 .09 .09 9 U0 DlSCH� .O9 ,11 .1l .1l '11 .12 .1� .14 .14 ,l4 � ' ' 10'00 DlSCHG '115 '17 '17 '20 .21 '21 .27 '28 '33 .35 � 11.00 DlSCHG, '36 .43 '44 '54 '57 '59 2'43 2'60 6'49 7'84 12.00 DISCHG 8'19 1.40 1.34 .94 .86 ,86 .71 .71 .1.58 .56 � 1300 OISCHG, .56 .47 .46 ,41 .40 .40 .34 ,34 .32 ,31 � 14.00 DlSCHG .31 '28 ,28 .26 .213 .25, .22 .22 ,22 .22 15.00 D\SCHG .22 .22 .22 .19 .19 ,19 .19 .19 ,19 .19 � 16'UO DlSCHG '19 '19 '19 '19 '19 '19 .16 '16 '16 '16 � 17.00 DISCHF-4 ,16 .16 .16 .16 ,16 '16 .16 .16 .13 .13 18.00 D[SCH� .l� ,1� ,1� .1� .1� .�� .l� ,1� .1� .1� � ~ . 19'00 DlSCHG ,13 .13 ,13 .13 -13 .13 .13 .13 .10 .10 � 20,00 D{SCHG .10 .10 ,10 .10 .10 .10 '10 .10 'lO .10 21, 00 D}SCHG .10 .10 ,10 .10 .10 ,1U ,lO .10 .10 .10 � ~ 22.00 D<SCHG .10 .10 ,lO .10 .10 .10 .10 .10 .lO .l0 � , 23'00 DISCHG ,10 .10 ,10 .10 .10 ,10 .10 ,10 .07 ,06 24 0O D{SCH� ,86 .OU � . � OPERATION REACH CROSS SECTION 4 PEAK T[ME(HRS) PEAK DlSCHARGE(CFS) PEAK ELEVqTlON(FEET) 12'05 8'92 155'62 � TIME(HRS) FIRST HYDROGRAPH POINT = '80 HOURS TIME INCREMENT = .1O HOURS DRAINAGE AREA = ,O0 SQ. M{. ~ ;OU DISCH� .OU ,00 .0O .O0 'O1 .01 .01 .01 .U1 .O1 8 ^ ' 6'00 D[SCHG .01 .01 .02 .02 .02 .02 '03 ,03 '03 ,133 � 7,00 OlSCHG '03 '03 -04 ,04 '04 ,04 ,04 .04 .05 ,05 8.00 D{SCHG .013 '05 ,06 .06 08 ,08 .08 '88 .09 � 9.00 DlSCHG .09 .09 .11 .11 .11 '11 .12 .13 .14 '14 � 10.00 DlSCHG .14 .15 .17 .17 .20 ,21 .21 .27 .28 .33 11.00 D7SCHG .35 .36 ,43 .44 .54 ';7 .58 2.43 2'60 6'49 � 12'00 DlSCHG 7'84 8'19 1'40 1'33 '94 '86. '86 '71 '71 '58 � 13.00 DlSCHG .56 .56 .47 ,47 ,41 '40 ,40 .34 .34 .32 14.013 D[SCH� ,�1 .�l .28 ,28 .2� .2� .2� .2� .22 .22 � ' . 15.00 DlSCHG .22 .22 .22 .22 .19 .19 .19 .19 .19 .19 � 1h'UU DISCHG ,19 .19 .19 '19 .19 .19 ,19 ,16 .16 .16 17'00 O]SCHF-4 .16 '16 .16 .16 .lb ,16 .16 .16 .16 .13 � 18'00 OlSCHG .13 .13 .13 .13 '13 '13 .13 .13 .13 .13 � 19.00 DISCHG .13 ,13 .13 .13 '13 .13 ,13 .13 .13 '18 20.00 DISCHG .10 .10 .10 .10 .10 .10 .10 .10 ,10 .10 � 21'00 DlSCHG ,10 '10 .10 .lU .10 .10 .10 .10 ,10 '18 � 22,00 DlSCHG .10 .10 .10 .10 .10 .10 .lO ,10 .10 ,10 23'00 DlSCHG .111 .10 '10 .lU ,10 .10 .10 .10 '10 .07 � 24.00 D[SCHG .06 .06 .OU � � OPERATION RUNOFF CROSS SECTION 4 � � PEAK TIME(HRS) PEAK D[SCHARGE(CFS) PEAK ELEU�TIOn(FEET) � 12'09 7.81 (RUNOFF) � ^ � OPERATION AUDHYD CROSS SECTION 4 ' PEAK TIME(HRS) PEAK DlSCHARGE(CFS) PEAK ELEQATlON(FEET) � 12,U7 16.58 1r5 5'80 � OPERATION REACH CROSS SECTION 10 � TR20 XEQ 9-18-85 NORTH BROOK REVISED 9-17-85 JOB l REV 05/02/83 � � PEAK TIME(HRS) PEAK DlSCHARGE(CFS) PEAK ELEVATION(FEET) 12.96 100.98 102'37 15'58 13.13 � lU0 66 ' � ^ 18.79 11.31 100.61 17.99 9'52 100'95 � I9.99 7.69 ' 10U 49 ' ^ 23'98 5.84 100'37 T[ME(HRS) FIRST HYDROGRApH POINT = .00 HOURS TIME INCREMENT = 1O ' HOURS D��[NA�E AREA = 24 SQ Ml � ' ,00 DlSCHG ,01 .01 ,U2 ,01 .02 .01 .02 .01 ,02 . . , '01 1.00 DlSCHG .02 '01 .02 .01 ,02 ,01 .02 ,01 .02 ,01 2.00 D(SCHG ,02 '01 02 ' , 01 O2 ' U1 U� U1 O2 01 � ' 3.00 D[SCHC .02 .01 .02 .01 .02 . .01 . .02 . .01 ' .02 , .01 4,00 DlSCHG .02 .01 .02 .O3 .05 .U6 .08 .09 '11 '12 5'00 D[SCHG '14 '15 1� ' 18 ' 20 ' 21 ' 24 25 29 31 0 �'0U DlSCH� '35 .38 .41 ,44 '51 '59 ' '67 ' ,72 ' '78 ' '82 7.00 DISCHG .88 .92 .97 1'01. 1.06 1,1O 1.14 1,18 1.23 1.26 � 8'OU DISCHG 1.31 1'34 1.39 ' 1 4� ' 1 �� ' 1. 67 ^ 1 81 1 99 ' 2 1� ' � 28 ' 9'00 D7SCHG 2.38 46 2.' 2�4 2 6� ' � 78 ' � 0O � 19 � �� � 46 � 64 � Jy 10.00 D[SCHG 3'90 4'12 4'29 4,45 4'66 ' 4'9�, ' 5'25 ' 5'74 ' 6'27 ' 6'90 ~ & 11.00 DlSCHG 7.79 8.62 ' 9 68 ^ 18 �8 ` 11 87 ` 1� 22 ^ 1� �� ' 16 J� ~ 18 46 - ^ 2� 62 ' 1�.O0 DISCHG 38.40 62,69 93.22 100.80 100.82 108.86 100.89 100.92 100.96 100,98 13,00 O}SCHG 100.98 100'97 100'95 100.92 100.90 100,87 100.84 100.81 95.56 49.98 14.00 D[SCHG 27'86 23'63 21.94 20'72 19.76 18'8H 18.10 ' 16 �� 1� 41 1� 18 � ' 15.00 DlSCHG 14.94 13.85 13.83 13.1.2 13'33 12,86 13.11 . 12.44 ' 12,35 ' 11,67 16,00 DISCHG 11,71 11.23 11.43 11.08 11.34 11,05 11.3l 11.05 11'30 10.89 17'00 D[SCHG 10'78 10.13 10.06 9.60 9.70 9.39 9.57 9.33 9.54 9.31 � 18'00 D{SCHG 9'52 9'26 9'17 8'55 8'40 7'93 794 764 776 7.54 19'00 DlSCHG 7'70 7'52 7'69 7'51 7'68 7.52 7'68 7'53 7'69 7'54 20.00 DISCHG 7.69 7.49 7,34 , 6.78 , 6 �� . 6 14 6 O9 13.85 5 91 � 75 � ~ 21.00 DISCHG 13,84 5.71 5.82 5,70 5.81 5.70 ,. 5.81 5.71 5.81 , 5.71 22'00 DlSCHG 5'82 5'72 5'82 13'73 9'82 5'7.3 5.82 5'74 5.83 5'75 23.00 DlSCHC 5.83 5'75 5'83 5.76 ' � B� . � �b ' � 84 5 77 � 84 � 78 � ^ 24.00 O{SCHG 5-84 5,72 5'49 4,97 4.33 3,19 ' 2,24 ' 1.36 ' .90 ' .47 25.00 D7SCHG .36 .15 .24 -03 ,23 .01 .23 .01 .23 'Ul 26.08 D[SCHG .23 .01 .23 .01 .22 .0l . 01 ' 22 01 � ' 27.00 DlSCHG .22 .01 ,22 ,01 ,21 ,01 .21 .01 ' '21 .2� ,01 28,00 D[SCHG ,21 .01 .21 .01 ,20 .O1 .20 .81 -20 .01 29.00 D[5CHG .20 .01 .20 .01 .19 .O1 .19 O1 ' 19 01 � ' ' EXECUTIVE CONTROL OPERATION ENDCMP � + � EXECUTIVE CONTROL OPERATION ENDJOB � COMPUTATIONS COMPLETED FOR PASS 1 RECORD {D RECORD lO PASS 1 PAGE 4 - ^ � v l TR20 XEQ 9-18-85 NORTH BROO� REUlSED 9-17-85 JOB 1 SUMMARY REV 05/02/83 PAGE 5 � & SUMMARY TABLE 1 - SELECTED RESULTS OF STANDARD AND EXECUTIVE CONTROL INSTRUCTIONS IN THE ORDER PERFORMED (A STAR(*) AFTER THE PEAK DISCHARGE TIME AND RATE (CFS) VALUES INDICATES A FLAT TOP HYDROGRAPH A QUESTION MARK(?) INDICATES A HYOROGRAPH WITH PEAK AS LAST POINT.) � ~ SECTION/ STANDARD RAIN ANTEC MAIN PRECIPITATION PEAK DISCHARGE STRUCTURE CONTROL DRAINAGE TABLE MOIST TIME ------------------------- RUNOFF -------------------------------------- � ID OPERATION AREA COND lNCREM BEGIN AMOUNT DURATION AMOUNT ELEVATION TIME RATE RATE (g� M7) (HR) (HR) ([N) (HR) (IN) (FT) (HR) (CFS) (CSM) � ~ '-- � - ' ALTERNATE 1 STORM 1 � + XSECT{ON ,039 2 2 .lO .O 4,00 24.00 1'96 - .00 12.15 1 + RUNOFF ___ XSECT{ON 5 '039 2 �2 .10 .0 4'00 24'O0 1,96 146.20 13'25 � ^ + REACH XSECTlON 2 .018 2 2 .10 .O 4'00 24'00 2'83 .UU 12.01 + RUNOFF --- / XSECTlON 13 .0137 2 2 .10 .O 4.00 24.00 2'24 146.40 12.10 + ADDHYD XSECT{ON 3 .003 3 2 .10 .0 4.00 24.013 2'80 .00 11.95 ) + RUNOFF --- XSECTlON 4 ,003 2 2 '10 '0 4'00 24'00 2'97 155'62 12'05 � + REACH � XSECTlON 4 . DU� � 2 10 ' 0 ' 4 O0 ' 24 00 ' . 2 �8 0U ' 12 09 ' + RUNOFF ___ � XSECTlON 4 .OUB 2 2 ,10 .O 4.00 34'00 2'56 155'80 12.07 + ADDHYD XSECTTON 5 '008 2 2 '10 .0 4'00 24.00 2'48 145,80 12'17 � ~ + REACH XSECTION 5 '066 2 2 '10 -U 4'00 24'00 2'27 146'53 12.12 + ADDHYD XSECTlON 5 .043 2 2 ,10 .O 4'01) 24.00 .97 .80 12.30 + RUNOFF ___ � XSECT{ON 5 '109 2 2 .10 'O 4.00 24'00 1.76 146.61 12'11.5 + ADDHYD STRUCTURE 1 '109 2 2 '10 '0 4.00 24'00 f,78 147.7�� 12'19 � ~ + RES�O� XSECTlON 8 ,109 2 2 '10 .0 4.00 24.00 1.75 120.88 12'29 + REACH � � XSECTlON 8 .841 2 2 '10 .0 4'00 24'00 3'73 .00 12.22 + RUNOFF --- � uSECTlON 8 .149 D 2 .10 .0 4.08 24.00 2'02 121.69 12.26 + ADDHYD XSECTlON 6 '046 3 2 .lU .0 4'00 24'00 1'46 .00 12,17 � - + RUNOFF ___ XSECTlON 7 .028 2 2 .10 .O 4'00 24'00. 3'12 '00 12.02 + RUNOFF �p ^~ XSECTION 7 .074 2 2 .lU .D 4'00 24.00 2'10 1546.64 12'07 + ADDHYD XSECTION 7 .018 2 2 .10 .0 4'00 24'00 1,27 .00 12'26 � 44.59 1141'9 44.54 1142'1 40.05 2188,3 64'48 11213.3 8.92 2701.8 8'92 2701.5 7'81 1530.8 16'58 1973.7 16.58 1973.7 79.20 12U5.5 17.08 397'2 92.51 8151'1 90.97 836.9 90.97 836'9 54'18 1331.2 143'78 962'4 36.88 808.8 63.94 2267.3 93'57 1267'9 9,29 576'8 - � � I RUNOFF XSECTlON 7 " + ADDHYD KSECT[ON 8 + REACH ~~ XSECTlON 8 + ADDHYD STRUCTURE 2 � ~ + RESVOR XSECT{ON 9 + REACH � ~ STRUCTURE 3 + �ESUOR � � XSECTlON 10 + REACH XSECT[ON 10 � ^ + RUNOFF XSECT{ON lO + ADDHYD � ~ 1 � � ~ � \ 0 ` ^�~ � ° .090 2 2 '10 .0 4'00 24.00 .090 2 2 .10 .0 4'00 24.00 .239 2 2 ,10 .0 4.00 24'08 ,239 2 2 .10 .O 4,00 24'00 .239 2 2 .1U ,O 4'00 24,00 .239 2 2 '10 .O 4'00 24.00 '239 2 2 '10 .O 4'00 24'00 '059 2 2 '10 ,0 4'00 24'00 '299 2 2 'lU '0 4'00 24'00 l'95 --- 1744.30 12'07 100.16 1114'1 1'94 121.02 12.17 100.16 1114'1 1'99 123.18 12.21 240'19 1003,7 2'02 682.03 12.40 185.35 774.6 1.97 117'54 12.50 185'313 774'6 2.00 122'96 12.87 100.98 422.0 1'99 102.37 12.96 100'98 422.0 1.81 .00 12.09 74'39 1253.8 1.913 102'99 12.20 149.72 501.4