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HomeMy WebLinkAboutMS-18-07 - Supplemental - 0000 Kennedy Drive (7)CITY OF SOUTH BURLINGTON, VERMONT KENNEDY DRIVE STORMWATER PONDS IMPROVEMENT PROJECT CITY OF SOUTH BURLINGTON 575 DORSET STREET. SOUTH BURLINGTON. VERMONT 05403 HOYLE, TANNER & ASSOCIATES, INC 125 COLLEGE STREET, BURLINGTON, VERMONT 05401 WATERSHED CONSULTING ASSOCIATES, LLC 430 SHELBURNE ROAD, BURLINGTON, VERMONT 05406 VERMONT SURVEY AND ENGINEERING, INC. 79 RIVER STREET, SUITE 201, MONTPELIER, VERMONT 05602 South Burlington Starmwater Services 0-4pi-r9r, southburlingtvn VERMONT APRIL 6,2018 PREPARED BY: oyle,Tanner Associates, Inc. 125 COLLEGE STREET _ 4TH FLOOR BURLINGTON, VERMONT 05401 PROLIYY PKWY r POND 5 • w POND a 6 O a ,P aqa POND 3 • �iEfaY DR1V� KEN. ■ POND 2 % GRANOViEW 4R1VE IN OAKS -�ERRAOE. LOCUS PLAN NOT TO SCALE DRAFT- 100% SUBMITTAL REVIEW NOTES: ENGINEER 1, EXISTING SURFACE FEATURES AND INFORMATION SHOWN ON THESE 3. THE LOCATION OF ALL UNDERGROUND EXISTING UTIUTIES, BURIED 4, CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO & CONTRACTOR SHALL RE RESPONSIBLE FOR THE MAINTENANCE OF 11. ALL SLOPES 1.1 OR GREATER SHALL BE ARMORED WITH Ir OF PLANS WERE OBTAINED FROM FIELD SURVEY. REFER TO DRAWING STRUCTURES, PIPING, AND OTHER UNDERGROUND ITEMS SHOWN ON PROVIDE EROSION PREVENTIONS AND SEDIMENT CONTROL WITH TRAFFIC AND TRAFFIC CONTROL ON KENNEDY DRIVE. TYPE II STONE FILL OVER GEOTEXTILE (ITEM 649.31). DRAFTG-0.1 FOR SURVEY DATA REFERENCE.IT IS THE CONTRACTOR'S THESE PLANS HAVE BEEN TAKEN 'FROM EXISTING DRAWINGS CONSTRUCTION ACTIVITIES WITHIN THE WETLAND AND WETLAND RESPONSIBILITY TO FIELD VERIFY ALL EXISTING CONDITIONS. OBTAINED FROM THE CITY OF SOUTH BURLINGTON. LOCATION OF BUFFER. 9. CONTRACTOR SHALL BE RESPONSIBLE FOR THE DIVERSION OF 12. GRAVEL ACCESS DRIVE SHALL BF 12' MW1MUM DEPTH OF SUBBASE THESE ITEMS SHALL BE CONSIDERED APPROXIMATE AND THE STORMWATER FLOWS AND BYPA551NG THE EXISTING POND 3 DURING DF CRUSHED GRAVELCOARSE GRADED {ITEM NO. 301.25] OVER 2. CONTRACTOR SHAD_ BE RESPONSIBLE FOR PROTECTION OF EXISTING CONTRACTOR SHALL DIG EXPLORATORY TEST PITS AS REQUIRED TO 5. CONTRACTOR SHALL REMOVE ALL TREES, BRUSH, AND STUMPS CONSTRUCTION UNTIL NEW GRAVEL WETLAND IS COMPLETE AND OEOTE%TILE FABRIC (ITEM 64A. R DRIVE SHALL HAVE A CAMBER UTIU71ES LOCATED WITHIN THE LIMITS OF WORK VERIFY LOCATIONS OF UTILITIES. PAYMENT FOR TRENCH EXCAVATION WITHIN THE LIMITS OF CLEARING, PAYMENT FOR CLEARING AND READY TO ACCEPT FLOW. GE LIMITED TO 1:50 FROM CENTER DRIVE SHALL LL EDGES. OF EARTH, EXPLORATORY FOR LOCATING UNDERGROUND UTILITIES GRUBBING SHALL BE UNDER PAY ITEM 201.11 (2X) SHALL BE PAID FOR UNDER PAY ITEM 204.22. THERE MAY BE 10. WHERE ADJACENT GROUND OUTSIDE OF THE LIMITS OF WORK IS i3. SEE SPECIAL PROVISION SPECIFICATION 900.620-02920 [GRAVEL � OTHER BELOW GRADE STRUCTURES NOT SHOWN WHICH WILL REQUIRE 6. CONTRACTOR SHALL CONFINE CONSTRUCTION ACTIVITIES TO AREAS DISTURRED OR DAMAGED DUE TO CONSTRUCTION ACTIVITIES, DEMOU71ON AND/OR RELOCATION IN ORDER TO COMPLETE THE OWNED BY THE CITY OF SOUTH BURLINGTON. CONTRACTOR SHALL RESTORE TO ORIGINAL STATE INCLUDING, BUT WETLAND FACILITY) FOR GRAVEL WETLAND PLANTS, SOIL AND o WORK OF THIS CONTRACT. THE CONTRACTOR SHALL THEREFORE NOT LIMITED TO SIDEWALKS, PAVEMENT, GRASS ON GREENBELT AND MATERIAL REQUIREMENTS VERIFY THE LOCATIONS, ELEVATIONS OF ALL EXISTING STRUCTURES, 7. CONTRACTOR SHALL SECURE WORK AREA WITH FENCING. LANDSCAPING, AT NO ADDITIONAL COST TO OWNER. AND OTHER FEATURES AFFECTING THE WORK PRIOR TO 14. SEE DRAWING NO. C-2.3 FOR POND 3 GRAVEL WETLAND DETAILS. CONSTRUCTION. ` _ j I I I 15. SEE DRAWING N0, C-2.4 FOR LANDSCAPING PLAN. �l ram, { •y l II II -h - ` WETLAND DELINEATION FLAG [TYP.] FEMA OFIRM POLYGON FLOODPLAIN BOUNDARY W I I I I GRAVEL ACCESS DRIVE _ STONE PROTECTION PAD { I y I W i2 SEE NOTE 12 INV 268.E g' SEE DETAIL, DWG. NO- C-32 NEW 4'0 DRAINAGE STRUCTURE WITH NEENAH BEEHIVE CST° 1 NEW 24'0 kDPE OUTFACE -GRATE &FRAME, R-i353 INV, EL = 270.13 TOP OF STRUCTURE - 279.00 --- ' ' PROVIDE FLARED END SECTION EXIST. 18'o HOPE INV. IN - 272.985 [CONFIRM IN FIELD] Ir p + 4111 ~ NEW 24'HOPE INV. OUT - 272.90 ffv 12 POa� _ 0 60 LF OF 24'0 HOPE f-T--_-_ 1 I SI1MP - 270.90 ABANDON EXISTING DRAIN J n S 0.0020 --1--- - 1 I 1 ° VALVE do 8' HDPE DRAIN :• o ' 25 i36 62 LF OF 8'0 HOPE �bfLLBOx l - .� I I y, a f SILT FENCE IN PLACE I, p VO OUTLET STRUCTURE WITH 3'0 REMOVABLE S - 0.0024 1 ii f I ITEM NO. 649.515 a ; TRASH RACK (SEE DETAIL, DWG. NO. C-3.1) � WETLAND- ER EXIST. Yf CB I ,F F _ ._ DEMOLISH EXISTING OU11�T 4'' � ! � v TOP OF STRUCTURE - 275.60 RIM - 282.87 1^I ;� J STRUCTURE k 15` HOPE AS o f .' NEW 8"0 HDPE INV. IN - 270.35 BUS - SILT FENCE w v h 1 7 x i o ITEM NO. 649,515 x o W 1 . NEEDED FOR CONSTRUCTION f !� ❑ NEW 24'0 HOPE INV, OUT - 270.25 EXIST. 15"0 HOPE INV. IN -277.9 �] EMERGENCY SPILLWAY rpm t` I �-t-- J / � - EXIST. 15'0 HOPE INV. IN -277.0 �5� �� \ -• � � . � - �vk-- -_ EXOST. 18'0 HOPE INV. DUT -273.0 .5.-� y r I I . • vet ! n SEE DETAIL. DAG. NO. C-2.3 DO T. SUM 271.1 1 : •�S-L � � - - _ � � ya � \ !I t4 , -' _ � - � �_ � , � � � c o pip � oa �AJ.vi [Q rP =tk 0 3' WIDE , o�PF.lj<< qy -____- OF BERM � � ; �s�M- cY, EN1 712980.0 2980 15"HOPE ' I, f � �.\ __ __ �d7=,_x' - 23' `% '1 ?�� Woil Aso \ 1',� y f ' E m LF OF 24"0 HDPE � 1 •HS�� � �-. __ - -.r �- -- _ .. _a��� �gourn o �� 15 LF OF 6'0 PE RF. m g ��� -. N \I •, ASLOPE- � �_ _ - 2- SLOPE H PE �1'IV. EL 269.08 F, E �+ Y LF OF B'0 11 O INV P 289 18' Z_ T TYPE II STONE 1 l` _-- g FILL OVER GEGTEXTLE INV 27_:; (ITEM 649.31) NEW 24`0 INLET INV. IN. - 272.80 I FOREBAY I I I N - 1 1 \ E 1:1 SCOPe + I I 10 LF OF 6'0 PERF. HDPE - B LF OF 6'0 PELF. HOPE GRAVEL WETLAND--- �. 4 V YHTH FLARED END SEC -DON _ - \ \ ! I Y. EL 289. `~ INV. EL 2®P.OB CELL j2 STONE PROTECTION PAD 18' TYPE I \ 1 �� t -1 SLOPE I If l , ��� - BOTTOM EL. 271.50_. Z f STONE OVER GEDTEXTLE (ITEM 649.31). w �--� r �c ^ `- G �, ,�, ... r lrr .� b g ', SEE DWG N0. C-3.2 - ?2 x 1� -ll I SLOPE '' �• _ Z� ISETi !n _ 1� GRAVEL WETLAND In RISER t13 - -- - --- - , (U a e�,� CELL (1 275.5 11 LF OF 6'0 PERF. HOPE _ - O� o a ii h 1 1; IIDP J 4•.B�RL 'E _BOTTOM EL 271.50 RISER #1 INV. EL 269.08 � ��C \ 8 LF OF 6"0 PERE HOPE INV. EL 269,08 SLOPE A ` W _yyz-__ A it 15 LF OF 6'F PETITE. FgPE` - O - Noss. �I ,Ii J DEMi1J EXISTING DRAIN -- -- - _ SLOPE �- Q ^ a VALVES h UNDERDRAINS yy INV. EL 2B9.O&- _ - X ,-� �rr�� •�' I�SPILLWAY SEE DETAIL, DWG. N0. C-2.3• HYDRAULIC INLET S WIDE X 10' LONG _ ` - _SLOPE _ _ - { \ } STONE TRENCH TO SURFACE. SEE ��. tl p �I RISER 1 DETAIL ON DWG. NO. `fr 3 �'_____-___ TBM 1 - VSE 33 MAGHVB I�� �W� WLj� I I_' - ` 4"SPRCI,SF -_- ` ��'� - - - - _ . - • gD ,�ti O z ❑ Z 71863�.657� I I e�\� 1 - �'-~��-� 277.pD i _ __ Z Q 14 41 .41 �+ ♦ \ w EL 285,743 I I �i l i I I 1 ', ` ` �� - - �_ 25D'ti _ - - _ - - L� 0L _J�'f C� \� \y\ `~ L -�_~ _~ ,`� a W -F4& I \11 ��_� - __�_�__t, N �ti LLJ f- � �y I I 4'SPR�� �\\'1 '_ , -�------- � �- ��'-�___.-- - SLOPE_. - -- %�. �\ ,\ ~� z � > [/J DREG S�_�� �-- -_- --- 2�5' - - - - �\ �• ,� m a ❑ W II /►� - ----_ ------------- - - - - - - - - 1 Ir �11 1 � [ I I 'SPRUCE �r' - - - - u - - -__ - _ \� ,� � ❑ 0 I. I r - -�� z90 -------- �`\ \\ �`\ ti`\ ti \t \I\ 6 Z 0 sl v o r i INTERNAL BERMS TO BE ARMORED - - - UI�TS OFEARErG u } I 1111''t 1 r �� r -: WITH 18' DEPTH OF TYPE II STONE 18 LF OF 24' HOP _` Wl l,� j r r OVER GEOTEXTI E (ITEM 649.31). - _ t-- --_ - 1 i 1 1•� r INTERNAL BERMS Td BE AIWORED EMERGENCY SPILLWAY. \ \\ •' WITH 1LE 8 DEPTH OF TYPE II STONE DRAWING NO. k�! I { I I r •-� r : �.• SEE DETAIL. DWG ND 0-2.3 OVER GEOTXILE ((TEAT SNJt) ,- \ F souTri IeVR�INGTON �� \ scASCALE.,r - 10• C- 1 .4 SITEP"AA '�--------- -----_ '� `. I l - ll I .� I I ._ • 0 5 16 20 SHEET SCALE• 1_ 10' OF NOTES: 1. EXISTING SURFACE FEATURES AND INFORMATION SHOWN ON THESE PLANS WERE OBTAINED FROM FIELD SURVEY. REFER TO DRAWING Cr0.1 FOR SURVEY DATA REFERENCE IT 1S THE CONTRACTOR'S RE5PCNSIBlUTY TO FIELD VITRIFY ALL EXISTING CONDITIONS 2 CCNTRAC70R SHALL BE RESPONSIBLE FOR PROTECTION AND SUPPORT OF ALL EXISTING UTILITIES LOCATED WITHIN THE LIMITS OF WORK DURING CONSTRUCTION. 3. THE LOCATION OF ALL UNDERGROUND EXISTING UTILITIES, BURIED STRUCTURES, PIPING, AND OTHER UNDERGROUND ITEMS SHOWN ON THESE PLANS HAVE BEEN TAKEN FROM EXISTING DRAWINGS OBTAINED FROM THE CITY OF SOUTH BURUNGION. LOCATION OF THESE ITEMS SHALL BE CONSIDERED APPROXIMATE AND THE OONTRACTOR SHALL DIG EXPLORATORY TEST PITS AS REQUIRED TO VERIFY LOCATIONS OF UTILITIES. PAYMENT FOR TRENCH EXCAVATION OF EARTH, EXPLORATORY FOR LOCATING UNDERGROUND UTILITIES SHALL BE PAYED FOR UNDER PAY ITEM 2(KZ2. THERE MAY BE OILER BELOW GRADE STRUCTURES NOT SHOWN WHICH WILL REWIRE DEMOLITION AND/OR RELOCATION IN ORDER TO COMPLETE THE WORK OF THIS OONTRACM THE CONTRACTOR SHALL THEREFORE VERIFY THE LOCATIONS, ELEVATIONS OF ALL EXISTING STRUCTURES, AND OTHER FEATURES AFFECTING THE WORK PRIOR TO CONSTRUCTION. 4- CONTRACTOR SHALL RELOCATE ALL UTILITIES THAT CONFLICT NTH THE NEW STORM DRAIN AND STRUCTURES, INCLUDING SEVIER, WATER, GAS, ELECTRIC, AND TELE/CABLE CONTRACTOR SHALL COORDINATE WORK WITH UTILITY AND CITY. AND PROVIDE ADVANCE NOTIFICATIONS PRIOR TO PERFORMING WORK. 5, CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO PROVIDE EROSION PREVENTION$ AND SEDIMENT CONTROL WTI CONSTRUCTION ACTIVITIES. 6. CONTRACTOR SHALL REMOVE ALL TREES, BRUSH, AND STUMPS WITHIN THE LIMITS OF CLEARING. PAYMENT FOR CLEARING AND GRUBBING SHALL BE UNDER PAY ITEM 201.11, Ds Aw EXIST. 6'4 CB RIM - 325.45 NEW 15'0 HDPE INV. IN - 320.30 EXIST, 15"e HOPE INV. OUT -320-2 EXIST. SUMP - 318.2 LIMITS OF CONCRETE SIDEWALK RESTORATION. SEE NOTE 15. 7. CONTRACTOR SHALL CONFINE CONSTRUCTION ACTIVITIES TO AREAS SHOWN ON ORAWNG AND OWNED BY THE CITY OF SOUTH BURLINGTON. 6. CONTRACTOR SHALL SECURE WORK AREA MOTH FENDING 9. CONTRACTOR SHALL BE RESPONSIBLE FOR THE MAINTENANCE OF TRAFFIC AND TRAFFIC CONTROL ON KENNEDY DRIVE, AS WELL AS PROVIDING SONAG£ FOR NOTIFYING PEDESTRIANS OF SIDEWALK CLOSURES 10. PROVIDE STUB SECTION OF 15" DIAMETER HOPE PIPE INSIDE DRAINAGE STRUCTURE WTH 15' DIAMETER REMOVABLE CAP. PROVIDE 8' ORIFICE IN CAP AT INVERT ELEVATION 320.85, 71. PROVIDE 2' X 24' RIGID INSULATION OVER NEW STORM DRAIN PIPE WHERE LESS THAN 4'-1Y CF COVER. 12 WHERE ADJACENT GROUND OUTSIDE THE LIMITS OF WORK IS DISTURBED OR DAMAGED DUE TO CONSTRUCTION ACTIVITIES, CONTRACTOR SHALL RESTORE TO ORIGINAL STATE, INCLUDING, BUT NOT LIMITED TO WNDRIDGE PARKING LOT, SIDEWALKS, PAVEMENT, GRASS ON GREENBELT AND LANDSCAPING AT NO ADDITIONAL COST TO OWNER. I9W. �ra TpT.5}9,9 13 CONTRACTOR SHALL RESTORE PAVEMENT WHERE IMPACTED BY CONSTRUCTION. SEE TRENCH PAVEMENT RESTORATION SECTION AND PAY LIMITS DETAIL 14, EXISTING GRANITE CURB TO REMAN. CONTRACTOR SHALL REMOVE AND RESET EXISTING GRANITE CURB WHERE IMPACTED BY CONSTRUCTION. ITEM NO. 61&40 1& CONTRACTOR SHALL RESTORE SIDEWALK TO ORIGINAL CONDITION. SEE CONCRETE SIDEWALK DETAL ON DRAWNG C-3,2, 16, CONTRACTOR SHALL RESTORE PAVE] ENT MARKINGS ON KENNEDY DRIVE WHERE IMPACTM BY CONSTRUCTION. RETROREFLECTIVE PAVEMENT MARKINGS SHALL CONFORM TO SECTION 646. 17. CLEARED AREAS, SWALE, AND GREENBELT SHALL BE RESTORED WITH 4' TOPSOIL, SEED AND MULCH, AND TREES AS INDICATED. 16, CONTRACTOR SHALL BE RESPONSIBLE FOR THE DIVERSION OF STORMWATER FLOWS AND BYPASSNG THE EXISTING COLLECTION SYSTEM DURING CONSTRUCTION UNTIL NEW SYSTEM IS COMPLETE AND READY TO ACCEPT FLOW. 19. SEE TREE DETAIL ON DRAWNG NO. Cr3.2 FOR PLANTING DETAILS TBM VSE yy 5©-©M AGggH 5U E E 1487671.707 EL 326-921 Q 9 tCORE NEW HOLE FOR 15'O HDPE AT INV. EL 320.30. SEE PIPE CONNECTION DETAIL ON DWG. NO. C-3.1. 4' WHITE LINE ITEM NO. 646.404, SEE NOTE 16. I'+ PROVIDE INSULATION. SEE NOTE 11, EXISTING GRANITE CURB TO REMAIN. SEE NOTE 14. EXISTING DRAINAGE STRUCTURE 70 REMAIN. CONTRACTOR TO EXPOSE TOP OF EXISTING .ir/c a/c- .i� 'i�i•: -iilc� Tlc /cam u p - DRAINAGE STRUCTURE AND PUCE 16" - - - TYPE II STONE OVER GEOTEXTILE IN i _ BOT M OF SWA_E, 95 L 2 - F OF 15' HDPE Cr _ - cx a pppp�� */c - asr/C- UT/c OT7C- uT/c LIT r u* c urlc� uT� 1 �� Jc� �r/c uT/c 15' TYPE D STONE FILL OVER Ir' ' GEOTEXTILE (1T1J11 649.31) --------------------- --- - - LIT/C UTIC uT/c-- .U.T/C-- tl.LN - _;IT/C 4r/c_ - LIT/c--_UT _ JT/c UTJC --- u - rlc� ..------------ ----- - --_ - - ---- _ ��- - - -- - - ---- SILT FEFNCE- �`v~ii�MOVE AND RESET - ----=---------� ` -ITEM NM 649.515 _ CAS REACTION - c - 37(,' - - - -- -- _ - - - FOR CONSIRU- - - - - - - -A,ST -- - -----__-_��_--_------_-_�--'ter"� -- -----` - ���� V _,7� �'� �� 1� \0� {I IN� 318.36'I - I r Y BP a tia o '' 1w O.C. . r_ �-• . j_ G�-� yIC2 RESTORE SWAB, GREENBELT AND CLEARED 1 AREAS NTH 4' TOPSOIL SEED AND MULCH, ANp TREES AS INDICATED. SEE NOTES 17 AND 19. l I z�s1I;V _0 57- F711 �� 11111 ill VIV IIIiL 11 '• 11 11 I A Ir `__��-� •' 11 VI VI r. IV V VV 1 I �� WETLAND DELINEATION FLAG (TYP.j 50' WETLAND BUFFER ' #5 SITE PLdM 15"HOPE -. POND 5 PLANT TABLE SYMBOL CO HMON NAME AC SERNCEBERRY EIP PAPER BIRCH TG 327.04 NVIN SS5 yEy 3323g.8 INV OL1T 319�3.2 BOT 317.2 M KENNEDY DRIVE � EAST. DRAINAGE STRUCTURE RIM - 320.SB DS KI j EXIST. 15"0 CMP INV. 1N - 3ZOS7 NEW 0 DRAINAGE STRUCTURE WITH OVERFLOW AND SOLID COVER f1 EXIST. 15'0 HOPE INV. OUT - 317.30 (SEE DETAIL„ DWG. NO, C-3.2) SUMP - 315-90 RIM - 324.00 E705T. I5'0 CMP INV. IN - 321.Oo3 (CONFIRM IN FIELD) NEW 15'4 HDPE WITH CAP & 8'4 ORIFICE INV. OUT TO CB #5C - 320,05 (SEE NOTE 10.) NEW 15'0 OPENING FOR OVERFLOW AT INV. El. - 323.00 SUMP - 31&65 ILvC-uric LIT/cZJC ur/c u- . T/c uT/c---- �- LIT/C- UT/C m - 15'HOPF. .� r8ACK Ci-- CI c2 C1 �Ci Cz--__ _/c- ur/c�~-- ur/C L+T/C- urrc- ur/r.-- uT/C:- LIT �� r c-- � �_�'�`-UT/vr/c�uT/c'_____--- -----'-------------------------,_--------------------------------------- TING 15' CMPR INSTALLATION ! OF NEW DRAINAGE / - - STRUCTURE. � W----------------- } y - LIMITS OF WORK AND CLEAN iG - - -- - - --� --- jjj l-------------- } �PARKINIGLOT }� MECONSTRUCTION EASEMENT TEdPDRARY l CONSTRUCTION ACCESS EASEMENT TO 20' KENNEDY DRIVE I WIHDRIDGE175H OIMEN W7N�%�A�yS�gC�CkAT10N SOUTH BUREELION,VT 05403 1 i C 33��g 3 20'0' } 64T 3 .2-2 f SCALE: 1' - 1o' I I I 0 5 10 20 ENGINEER DRAFT LSD z w w Z Z L1 Y DRAWING NO. SHEET OF NOTES: ENGINEER 1, EXISTING SURFACE FEATURES AND INFORMATION SHOWN ON THESE PLANS WERE OBTAINED FROM FIELD SURVEY. REFER TO DRAWING G-0.1 FOR SURVEY DATA REFERENCE IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY ALL EXISTING CONDITIONS. 2. CONTRACTOR SHAD. BE RESPONSIBLE FOR PROTECTION AND SUPPORT OF ALL EXISTING UTILITIES LOCATED WITHIN THE LIMITS OF WORK DURING CONSTRUCTION. 3. THE LOCATION OF ALL UNDERGROUND EXISTING UTILITIES, BURIED STRUCTURES, PIPING, AND OTHER UNDERGROUND ITEMS MOWN ON THESE PLANS HAVE BEEN TAKEN FROM EXISTING DRAWINGS OBTAINED FROM THE CITY OF SOUTH BURLINGTON. LOCATION OF THESE ITEMS SHALL BE CONSIDERED APPROXIMATE AND THE CONTRACTOR SHALL DIG EXPLORATORY TEST FITS AS REQUIRED TO VERIFY LOCATIONS OF UTILITIES. PAYMENT FOR TRENCH EXCAVATION OF EARTH, EXPLORATORY FOR LOCATING UNDERGROUND UTILITIES SHALL BE PAYED FOR UNDER PAY ITEM 204.22. THERE MAY BE OTHER BELOW GRADE STRUCTURES NOT SHOWN WHICH WILL REQUIRE DEMOLITION AND/OR RELOCATION IN ORDER TO COMPLETE THE WORK OF THIS CONTRACT. THE CONTRACTOR SHALL THEREFORE VERIFY THE LOCATIONS, ELEVATIONS OF ALL EXISTING STRUCTURES, AND OTHER FEATURES AFFECTING THE WORK PRIOR TO CONSTRUCTION. 4. CONTRACTOR SHALL RELOCATE ALL UTILITIES THAT CONFUCT WITH THE NEW STORM DRAIN AND STRUCTURES, INCLUDING SEWER, WATER. GAS, ELECTRIC, AND TELE/CABLE. CONTRACTOR SHALL COORDINATE WORK WITH UTILITY AND CITY, AND PROVIDE ADVANCE NOTIFICATIONS PRIOR TO PERFORMING WORK. 5. CONTRACTOR SHALL TAKE ALL PRECAUTIONS NECESSARY TO PROVIDE EROSION PREIIENTIONS AND SEDIMENT CONTROL 6. CONTRACTOR SHALL CONFINE CONSTRUCTION ACTIVITIES TO AREAS OWNED BY THE CITY OF SOUTH BURLINGTON. 7. CONTRACTOR SHALL BE RESPONSIBLE FOR THE MAINTENANCE OF TRAFFIC AND TRAFFIC CONTROL ON KENNEDY DRIVE, AS WELL AS PROVIDING SGNAGE FOR NOAFYING PEDESTRIANS OF SIDEWALK CLOSURES. TG 3 8.355 INV OUT 2312Q.9 DOT 319.0 ❑S BBB N EXIST. 510 CB v RIM - 328.62 m NEW 15'4 HOPE INV. IN - 323.80 EXIST. HOPE INV. IN - 323.8 EXIST. 1r5"o HOPE INV. OUT -323.5 EXIST. SUMP - 321.5 W "T/C-� STOP UT/c-_ 8, PROVIDE STUB SECTION OF 15" DIAMETER HOPE PIPE INSIDE DRAINAGE STRUCTURE WITH 15" DIAMETER REMOVABLE CAP. PROVIDE 6" ORIFICE IN CAP AT INVERT ELEVATION 324,40. 9. PROVIDE 2' X 24' RIGID INSULATION OVER NEW STORM DRAIN PIPE WHERE LESS THAN 4'-0" OF COVER (ITEM NO. 622.10). 10, AHERE ADJACENT GROUND OUTSIDE THE LIMITS OF WORK IS DISTURBED OR DAMAGED DUE TO CONSTRUCTION ACPVITIES. CONTRACTOR SHALL RESTORE TO ORIGINAL STATE. INCLUDING, BUT NOT LIMITED TO SIDEWALKS, PAVEMENT, CRASS ON ME043ELT AND LANDSCAPING, AT NO ADDITIONAL COST TO OWNER. 11. CONTRACTOR SHALL RESTORE PAVEMENT WHERE IMPACTED BY CONSTRUCTION. SEE TRENCH PAVEMENT RESTORATION SECTION AND PAY LIMITS DETAIL VSE77456632-3MACgHHyyUB E 129 624 L ❑ 330.114 DS /6A REPLACE EXIST. DRAINAGE STRUCTURE WITH NEW 6'4 DIVERSION STRUCTURE WITH OVERFLOW AND SOLID COVER (SEE DETAIL, DWG NO. C-3.1) RIM = 329,66 EXIST, 15'0 HDPE INV. IN = 324.5 CORE NEW HOLE FOR 15'4 HDPE AT NEW 15"0 HOPE OUT TO DS #6B WITH CAP & 6'Y ORIFICE INV. EL 323.00. SEE PIPE CONNECTION INV. OUT = 324.4 (SEE NOTE 8.) DETAIL ON DWG, NO. C-3.1. EXIST. 15'm HOPE INV. OUT TO POND 6 - 32C4 SUMP - 322.4 (ITEM � NOTEOTE 9. 93 LF OF 15'0 HOPE 4' WHITE LINE. ITEM 646.404. 5-MOO65 r SEE NOTE 13. It rr— VT/C—i-- UT/L— UT/C— Ul/C� ]2. EXISTING GRANITE CURB TO REMAIN. CONTRACTOR SHALL REMOVE AND RESET EXISTING GRANITE CURB WHERE IMPACTED BY CONSTRUCTION (ITETA 616.40). 13. CONTRACTOR SHALL RESTORE PAVEMENT MARKINGS ON KENNEDY DRIVE WHERE IMPACTED BY CONSTRUCTION. RETROREFLECTIVE PAVEMENT MARKINGS SHALL CONFORM TO SECTION 646. 14. GREENBELT SHALL BE RESTORED WITH 4" TOPSOIL, SEED AND MULCH. 15, CONTRACTOR SHALL BE RESPONSIBLE FOR THE DIVERSION OF STORMWATER FLOWS AND BYPASSING THE EISTNG COLLECTION SYSTEM DURING CONSTRUCTION UNTIL NEW SYSTEM IS COMPLETE AND READY TO ACCEPT ROW. KENNEDY DRIVE LIMITS OF WORK UTA UT/C— UT/C� u�1� f LICE ugE -- ur/c� cz C: cz cz Cz n UT/C-�r - UT/c— UTA__ ) f- uT/C— Y � — V -- -_ - --- - �# l SIDEWALK L- 14' m �aX 1 329 - UGII r UQE �--- u(E f urE —_VcE uoE uae — -U — ucf uoE urE — x ucE uoE �cJr UT/c�^ uilc $ vrlc�— Ur u�� uTTca.LL�r/o — vi/C— urM uTIC— moE �• u j f - "ELM -10 10"EL.M 1 9 £LAW - - - - _. T4L uT� � Sr �`���yjj�'y—`jj I -- -____ _ _�-- —------J---- PUL.LBOx "T/c_�j�[+ 33u2222T/c tF" '60T332422 Vs UCE o % 4'SPRUCE 1 ' v 1 1 ' 1 1 EXISTING GRANITE CURB TO REMAIN. SEE NOTE 12, I / SITE PLANT ISCALE: 1' = 10' 524.5E CITY OF SOUTH BURLINGTON PARCEL 5 IL ID 0970-0025 SIXITI BUR G�10 N5403 POND 6 Ilk , nall N o (0 z a o ❑ Z z � w Z Q J a W o LLI F— z� �w m4 W o LLI ud? Z � V LLI [L u DRAWNG NO. C 1.8 SHEET OF NOTE: 1. SWING TIES ARE TO THE CENTER OF STRUCTURE. 'a &7.8'- - . 101.0i•- -- - 15 R2' _ _ R6' \\ R80' AB,Z� ], r., r 0 EGAD. 4' 10.19' f 44 / R3 R3. 82.6 ... . I R69' 1 _ R5' AKICELL it WETLAND R� r--- ��AT_ I R5' BOTTOM E1. 271.50 f y / &�1 GRAVEL WETLAND I R20' / CELL #1 18.89 13_ T . BOTTOM EL 277.'.90_ 1 R5 A$ r L R3' �. z -` R20 Im.�_ - 34,4 R5' . fie. R2d o.68 GRAVEL WETLAND LAYOUT PLAN SCALE. V - 20' NOTES: 1. THE KMAND BASIN AREA SHALL BE CLEARED OF CELL #1 TOP OF BERM EL 275.50 ALL TREES, ROM STUMPS, BOULDERS AND SOD TO A DEPTH OF 2' BLOW FINAL GRADE TYPE M STONE 18" MIN. RISER #2 DEPTH ON SIDE SLOPES 2. CONSTRUCT BEAM USING EMBANKMENT MATERIAL FREE 24' HOPE RISER W/ SOLID COVER LTI'T'•) OF SOD, ROOTS, FROZEN MATERIAL. NO STONES EL: 272.GD' LARGER THAN 6 INCHES OR OTHER OBJECTIONABLE MATERIAL. COMPACT AS PER SPECIFICATIONS. 12' TYPE I STONE COLLAR 3. OUTLET CONTROL STRUCTURE TO BE PRECAST WITH DIMENSIONS AS SHOWN. 3' PEA STONE 1METLANO 4. LOAM. HUMUS AND SEED ALL EARTH SLOPES ASIr SOIL SOON AS POSSEIILE. STABILIZE GUTFALL AREAS WITH REQUITED EROSION CONTROL FL: 271.50' 5. REMOVE ACCUMULATED SEDIMENT FROM BMW AT .....' . . OOMPLE ON OF PROJECT. 24" 6. ANTI -SEEP ca LARS SHALL BE INSTALLED AS SHOWN 3/4" GRAVEL. 74 RESIST FLAW ALONG THE OUTSIDE OF THE PIPE. EL 28&58' COLLARS SHOULD BE PLACED A MINIMUM OF 5 FT. f FROM THE PIPE, MAXIMUM SPACING OF COLLARS IS 28 FT. 7. ALL PIPE CONNECTIONS SHALL HAVE FLEXIBLE GEOTEXTILE FABRIC BELOW WATERTIGHT GASKETS CONFORMING TO THE UNDERDRAM ITEM NO. 649.41 SPECFICATIONS. PIPE 70 OUTLET STRUCTURE CONNECTON SHALL BE WATERTIGHT WITH AN EMBEDDED FLEXIBLE RUBBER BOLT. & SEE SPECIAL PROVISIONS SPECIFICATION SUMP EL 268.00 900.620-02920 (GRAVEL WETLAND FACILITY) FOR 3e X 36" X 12' H CONCRETE WETLAND PLANTS, SOIL AND MATERIALS INSIDE FOOTER BOTTOM EL: 287.50' WETLAND. 9. SEE LANDSCAPING PLAN, DWG. Na C-24 FOR LANDSCAPING REQUIREMENTS ABOVE LIMITS OF WETLAND. SEE LANDSCAPING PLAN FOR PLANTINGS OUTSIDE OF BASIN, ABOVE EL 275.00 4" TOPSOIL (ITEM NO. 651.35) 36' REMOVABLE TRASH RACK ESTABLISH DENSE VEGETATION (SEE DETAIL, DWG, NO. C-3.1) PRECAST COVER WITH 3e OPENING CENTERED -1 DO NOT 05E GRANULAR SEE DETAIL A ON DWG. NO. C-3.1 FOR 9AOKLILL IN t3EIiM JOINING DETAILS �• 26'-O" 5' I ^ (MIN.) YI ALL x++ OUT fl 25 SEE PIPE TO CATCH BASIN CONNECTION DETAILS, DWG. NO. C-3.1 ANT -SEEP COLLARS (TYP. SEE DETAIL, DWG. NO. C-12 R4 CELL #2 2'-D' MMN RISER #3 24" HOPE RISER W/ GRATE EL: 272" 00' 12' GEOTECTILE FABRIC 12" TYPE 1 �f-�--� UNDER FILL F STONE COLLAR EXTENT OF ITEM \\ NO. 649.41 1 11 DO NOT USE GRANULAR BACKFILL IN BERM Jf J 24' HOPE INV. IN & OUT EL: 268.58' 5 YIN. COMPACTED NATIVE SOIL 7 AN71-SEEP COLLARS (TYP.) ITEM NO. 649.31 EXTENT OF ITEM \ NO. 649.41 5' EXTENT OF I7EM Na\_ 649.31 COMPACTED EARTHEN SUBGRADE SUMP EL 268.00 _ 6" PERF. HOPE PIPE 36" X 35' X 12' H CONCRETE INV, EL- 269,08' FDOTER BOTTOM EL: 267.50' RISER #2 & #3 DETAIL SCALE- NOT TO SCALE WETLAND BASIN/LIMITS FOR WETLAND PLANT MATERIALS INSIDE BASIN UP TO EL: 275.00' TOP OF OUTLET STRUCTURE EL- 27&60' SUMP EL- 268,25' 4-0' - B' HOPE INV. EL 270.35' I r 2' RIGID INSULATION - - 5' MIN. 48" I.D. PRECAST MANHOLE BASE SECTION. COAT EXTERIOR WITH 2 COATS WATER PROOFING SEALANT 4' THICK TOPSOIL 17EM NO. 551.35 12" MIN. CRUSHED GRAVEL ITEM NO, 301.26 RISER #4 DETAIL SCALE NOT TO SCALE EL: 269.00' �- COMPACTED EARTHEN SUBGRADE 3' PEA STONE 8' WETLAND SOIL EL• 271.50' 24" 3/4- GRAVEL EL 26&58' L GEOTEXTILE FABRIC BELOW UNDERDRAIN ITEM NO. 649.41 COMPACTED EARTHEN SUBGRADE 6' PERF. HOPE PIPE INV. EL 269.08' CELL #2 8' STUB W/ CAP W/ Le ORIFICE O INV. EL: 270.60' EXTENT OF ITEM NO. 649.41 5' MIN. - 8" HOPE INV. ANTI -SEEP COLLARS (TYP.) EL.: 270.5.V SEE DETAIL DWG. NO. C-3.2 36" X 36' X 12' H CONCRETE FOOTER BOTTOM EL: 267,50' FDREBAY TOP OF FDREBAY BERME EL 27100 TYPE II S70NE 18' YIN. DEPTH ON SIDE SLOPES GEOTEXTILE FABRIC (TYP.) UNDER FILL ITEM NO, $49.31 4' THICK WETLAND SOIL i RISER #4 24' HOPE RISER W/ SOLID COVER EL: 272"5V 12' TYPE I STONE COLLAR 3" PEA STONE e WETLAND SOIL EL 271.50' CELL #1 EXTENT OF ITEM RISER #I N0.849.41 24` HDPE RISER W/ GRATE EL: 272.00' r 12' TYPE I STONE COLLAR COMPACTED 1 NATIVE SOIL 71 UO NOT USE GRANU LAR F BAGKFILLIN BERPA EXTENT OF ITEM NO. 649.31 36' X 36' X 12' H CONCRETE FODTER BOTTOM EL: 267.50' 6" PERF. HOPE PIPE INV. EL: 269.08' 3' PEA STONE 8' WETLAND SOIL EL• 271.30' 3/4' GRAVEL EL 26&58' GEOTEXTILE FABRIC BELOW UNDERDRAiN ITEM NO. 649.31 SUMP M 266.00 COMN"-rED EARTHEN SUBGRADE HYDRAULIC INLET 3' X 11Y LONG STONE (TYPE 1) 3'-0' - TRENCH TO SURFACE BOT. EL 26&58• TOP EL 271.50' RISER #1 DETAIL SCALE: NOT TO SCALE ELEVATIONS POND 3 A: TOP OF WETLAND SOIL 271.50 B' TOP OF PEA STONE 270-53 C: TOP OF GRAVEL 270-58 D: BOTTOM OF GRAVEL 26&58 4' THICK TOPSOIL 'fN ITEM NO- 651.35 ELEV: A - EXTENT OF ITEM NO. 649.41 ELEV: B - ELEV: C - GEOTEXTILE FABRIC ITEM NO- 649.41 ELEV: D 8' WETLAND SOIL 3' PEA STONE 24` 3/4 GRAVEL GRAVEL WETLAND DETAIL SCALE: NOT TO SCALE SPILLWAY SCHEDULE FDREBAY CELL #1 TO #2 EMERGENCY SPILLWAY BOTTOM 5'-0" 6'-0" fi'-G" WIDTH TOP ELEV. OF 273.00 276.00 276.50 BERM STONE TOP ELEV. OF 272,00 275.00 275.50 EARTHEN BERM 70P ELEV. OF SPILLWAY STONE] 272.50 275.50 275.90 TOP ELEV. OF SPILLWAY (EARTHEN) 271.50 274 50 274.90 TOP OF STONE BERM TOP OF EARTHEN -- 12' (TYP.) BERM 1 n PLACE 12" OF SMALLER DIAMETER TYPE II STONE (6" - 12") AT TOP OF EARTH BERM ' 24' •� ? F VARIES 3/4' GRAVEL EL• 26&58' GEOTEXTILE FABRIC UNDER FILL L 111. 16 DEPTH OF ITEM NO. 649.31 WIDTH TYPE II STONE GEOTEXTILE FABRIC BELOW VARIES UNDERORAIN ITEM Na 649.31 SUMP EL 268.00 PLACE 18" DEPTH OF LARGE DIAMETER COMPACTED EARTHEN (12"-16") TYPE II STONE AT ALL OTHER - SUBGRADE ELEVATIONS OF SPILLWAY AND BERM. 6' PERF. HOPE PIPE SPILLWAY DETAIL INV. EL: 269.08' SCALE NOT TO SCALE ENGINEER W U) a CrX J_ F z ❑ Q o o LLI ❑ z z Q m ❑ Ll In J Z a < "o Y T DRAWING NO. 2.3 SHEET OF NOTES: LEGEND: 1, SEEDING INSIDE GRAVEL WETLAND FACILITY SMALL BE AS PER THE 3. STRAW MULCH AS PER NOTES ON G-0.2- EVERGREEN TREE ® GRAVEL ACCESS DRIVE REQUIREMENTS OF SPECIFICATION SPECIAL PROVISION 900.620-02920 GRAVEL WETLAND FACILITY]. 4. SEE TREE AND SHRUB DETAILS ON DWG. NO, C-12 FOR PLANTING TREE EXISTING PLANTINGS OR TREES DETAILS. TO BE PROTECTED AND SAVED 2, ALL DISTURBED AREAS NOT OTHERWISE DESIGNATED. SHALL BE TILLED, TOPSOILED AND SEEDED WITH VERMONT CONSERVATION MIX (80 LBS PER ' ® SHRUB GROUPING TOF CLEARED IDfVEGETATION O B BE PROTECTED AHDDSAVED ACRE APPLICATION RATE) IN ACCORDANCE WITH SECTION 651. SEE SOIL AND SEEDING NOTES ON DWG, NO, G-0.2. AREA WITHIN GRAVEL WETLAND UP TO CONTOUR ELEV. 275.00 TO BE PLANTED WITH WETLAND SEED MIX. OR STONE FILL TYPE 11 SEE SPECIFICATION SPECIAL PROVISION 900.G20-02920 (GRAVEL WETLAND FACILITY). I- \\ 5 } •f l I 1 \ ,�„ OODPLAIN BD NNDARY y. r{" I If f} • ! i2 \ ,\ \` �` EXISTING TREE IN V 288.6, 1i } ♦ \w �'' TO BE REMOVED l Yg f ♦ � \ ♦ - 2 AS PROTECT AND :� Pt3S� ,\ + 10' D.C. SAVE ,\ n .. } t 0, EXISTING TREE j + I ` EDGE OF CLEARED p �LiSOx y ,1c / TO BE REMOVED / ` - 27C' EXISTING VEGETATION TO I DRIVE �� — _ - - --- __ 7 /// ,\�' BE PROTECTED AND SAVED IL WL AIN \`PRO C�p rs ^' _ _ _/ VALVE ` !POST ! SAVE A 1 — 1 y�' '"•..r'�I / k �751295830.g0 78.604 15"HOPE --' WETLAND Aso BUFFER N" � � 1111'i1 •',� I- \' \\ ` \\ FOR AY •i �` } i I 3'SPR NE , fl '\ ` \\�9. ' Y, GRAVEL D :'ti' BOTT EL•271. AVE EXISTINGXITREES PAND ROTECT \ '\ N ` k A s PLANTINGS \ ` \ \ } t�+ N� ` ~ /, j 1 I13"fSPRUCE~ ♦ \ `♦ 4"SPRCI�SF - TBM y yl } y p VSE 33 MAGHVB 74 4'.651 ` �L i 141 EL 285,743 ��� ♦ \ \ \ _ � � B. _ j y g` 1} I _i 1 ♦ >r EDGE OF CLEARED EXSTNG' kl DiSIN I j I f,r '♦ _�� �� ♦�- . --`- VEGETATION TO BE----� �2r�5' -3' me,_--- `� S 1 I T�I _��� PROTE= AND SAVED -------- -- - - - - / PSPRUCE /^ -«zz --s --, N. � � \ Ili l�l I I I !' ♦♦\�� 1 � � ��_ � -�.SOUTHRuf NGTON --__� _�-` ,`♦♦ _--- -- f SITE PLAN '. N`, SCALE: 1' = 10' , W WETLAND Rl BUFFER O.c. - PLANT TABLE SYh450L COMMON NAME AS SILVER MAPLE AR RED MAPLE CS REDOSIER DOGWOOD PS WHITE PINE TC CANADIAN HEMLOCK f-J ENGINEER _ U -. o �7 •� ♦♦ a O 0 w Z Y `\ \ \ ♦ LLl > Z \ \ \\ \ ❑ Z Z LLJ DRAWING NO. W cur. SCALE: ,• _ or C-2.4 SHEET OF