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Home My WebLink About484A Station Avenue Supplemental Drainage PlanGy/O GRFq f 2 sT I+�srfRN INTERCHANGE N0.8 MIO CAPE 7HiGHWAY- W)-itTES LOC \ \ OLD TOWN HOUSEov A N LOCUS MAP SCALE 1"=2083' ASSESSORS MAP 77 PCL B8 PLAN REF. LCP 35021G PB 410 PG 47 EASEMENTS: PB 431 PG 41 4" MIN. PEASTONE AND MIRAFI 140NS _ FABRIC OVER ALL STONE COMPACT BACKFILL IN 6- LIFTS (95% PRCTR.) PERF. HDPE 12" CORR. H-20 PIPE PERF. HDPE LAY LEVEL BETWEEN PITS WITH 5' WIDE 6' DEEP LEACHING TRENCH 8" H-20 F&G'S TO GRADE MORTAR ALL COMPONENTS (TYP.) .1' H-20 RISER VARIES 2' 3/4" - 1 1/2" DOUBLE WASHED STONE 4' MIN. AROUND PITS LEGEND: GENERAL NOTES: I. THE LOCATION OF EXISTING UNDERGROUND UTILITIES SHOWN ON THIS PLAN IS APPROXIMATE. PRIOR TO ANY EXCAVATION ON THIS SITE, THE EXCAVATING CONTRACTOR SHALL MAKE THE REQUIRED 72 HOUR NOTIFICATION TO DIG SAFE (1- REMOVE CAPE COD BERM AND PROVIDE 800-344-7233) AND ANY OTHER UTILITIES WHICH MAY HAVE CABLE. PIPE OR PAVED DRAINAGE SWALE INTO BASIN EQUIPMENT IN THE CONSTRUCTION AREA FOR VERIFICATION OF LOCATIONS. SEE PAVEMENT CROSS SECTION PRELIMINARY DIGSAFF N 981504047 APRIL 10th 1:45 PM 2, ALL CONSTRUCTION MATERIALS, COMPONENTS. AND METHODS EMPLOYED ON THIS PROJECT WORK SHALL CONFORM TO THE TOWN OF YARMOUTH SUBDIVISION REGULATIONS AND\OR THE MASSACHUSETTS DEPARTMENT OF PUBLIC WORKS STANDARD SPECIFICATIONS FOR BRIDGES AND HIGHWAYS AS AMENDED TO PRESENT. 3. ALL DRAINAGE COMPONENTS MUST BE CAPABLE OF WITHSTANDING H-20 WHEEL LOADS. 4. 4' LOAM AND SEED ALL DISTURBED AREAS WHERE APPLICABLE 5. ALL DISTURBED PAVEMENT, CURBING, AND STRIPING TO BE REPLACED. SEE PAVEMENT CROSS SECTION. 6. EXISTING BASINS TO BE CLEANED, SEE DETAIL BELOW. CONTRACT PRIVATE COMPANY TO LOCATE ALL PRIVATE LINES n OR OTHER SOLUTION TO PREVENT OVERFLOWING OF THIS BASIN ONTO LOCUS. 55.7 AS REO . DISTUPBED APEAS ADJOINER SHOULD INSTALL PAVEMENT BERM NT CPOSS SEI TION EXIST. F&G BETWEEN BASIN AND CURB TO PREVENT j- BYPASS OF STORMWATER ONTO LOCUS. TOP STRUCTURE EL- L ISTED IN PLAN 12'0 CPP PITCH VARIES PERF. HDPE HOLES lTYP.) 6'0 WITH 5' WIDE 't H-20 4' DEEP \ INSTALL ' 1000 GAL. LEACHING 12'0 CPP ` TRENCH y.,,,,,, - LEACHPIT ELBOW T EXISTING LEACHING 5 CATCH BASIN (TYP 1 SECTION T HRU DRAIN AGE I ` = A DE TO A DEPTH OF 3* BELOW THE BOTTOM NOT TO S(.aLL OF THE STRUCTURE AND REPLACE WITH CLEAN SAND 4" MIN. PEASTONE AND MIRAFI 140NS FABRIC OVER ALL STONE COMPACT BACKFILL IN 6' LIFTS (95% PRCTR.) PERF. H-20 HDPE PIPE COMPACT SIDES PER MANF. SPEC. •pOp Op• n va O'pOp00 O�0 0 000000 3/4' - 1 1/2 000000 O 00000000000 �. DOUBLE WASHED STONE 00000000 000000 0000000000pOpOp 0 0 0 0 0 0 0 5.0' LEACING TRENCH CROSS SECTION NOT TO SCALE DRAINAGE CALCULATIONS: DRAINAGE AREA - 81,893 SF RATIONAL METHOD 0 -CIA = 0.90(3.0)(1.88AC.)(44&B)=2278 GPM (4) 6' X 6' LEACHPITS WITH 4' STONE = 1552 SF 156' OF 5' X 3' LEACHING TRENCH = 1716 SF TOTAL 3268 SF NEW LEACHING CAPACITY 3268 SF (.7 GPM/SF) = 2287 GPM SAWCUT AND MATCH EXISTING PAVEMENT 3' BITUMINOUS ASPHALT CONCRETE 2' BINDER 1' TOP COURSE MASS DPW TYPE 11 6' DENSE GRADED CRUSHED STONE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MPROCTOR TEST ASS DPW M2.D1.7 COMPACTED TO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00000000000000000000000000000 95'6 VIB DRY DENSITY MOD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 WITH NBRATORY ROLLER. O O 0 0 0 0 0 0 0 0 0 0 CLEAN SAND BACKFILL COMPACT SUBGRADE WITH VIBRATORY ROLLER. ALL FILL COMPACTED IN 6' LIFTS. PROPOSED PAVEMENT CROSS SECTION NOT TO SCALE 98-095 o CONTRACT PRIVATE COMPANY TO LOCATE ALL PRIVATE LINES 53.9 AH3 COD -'\ YYY r iL 1 It I \ 1 'I 1 EXISTING DRAINAGE SYSTEM AHI 54.9 EYIST+NG CCIINCRE , I l 44. X EXISTING DRAINAGE 410 (TYP.) d E%1871 BASIN F ' , \ e TOP STRUC RE EL. 5 . 55.1 V OUT EL. .6'1 '1 �-+' ELECTRIC MAR NGS O 7-_m' s COMPLETE IN T AREA / PRO SED DRAM E ' ' r SYSTEM r I IFY�IGS;AFE 1 1 TOP TRUCTURE . 49.5 XISTINC CAS LINE INV. 47.5 1 F&G T GRADE (55. ) L e ,, EXSTIFG BASIN Fb:G 55.0' ' II `' AH2 TIOP STFUCTURE EL'153.2 ; e I INV, . OU' EL 51.2't - Oh ilii `r: TOP S TURE EL. 4 I II I IIS RA I, F&G TO RADE l ; re r II a PROPOSED LEACH TR / I ' 5' WIDE X 3' DEEP 1 PERF H-20 HDPE INV. EL. 47.5 r '. ��` ✓` LEVEL BET. PITS TOP. STRUCTURE EL. 49.5 �`��• it ' a INV.'S 47.5 F&G TO GRADE (55.81). If `1 TOP STRUCTURE EL. 49.5 ELECTR r INV.'S 47.5 INCOMPLE / F&G TO GRADE (56.61) 1 OTIFY DI r7 ,Q91� 1 X6'0, � I , 1 i EXISTING A&P SUPERMARKET I DATE SOIL BORING SOIL BORING WI AUGER HOLE 1 I O EXISTING CATCH BASIN \ I DATE: 4-11-98 / SOIL EVALUATOR: SOIL EVALUATOR: SOIL EVALUATOR: C- GUY WIRE DAN OJALA (DCE) UTILITY POLE aqo HYDRANT 55.8 , 10YR5/240, 107, GRAVE I PROP. DRAINAGE PIT 52.3 60' r 50.8 78" f` EXISTING PARKING TPEE (SA•E) L 4r. O ELECTRIC MANHOLE g EXISTING UGHTPOLE -64-- EXISTING CONTOUR -21-- PROPOSED CONTOUR ® EXISTING SPOT GRADE AHI 10YR5/6 SOIL BORING - GENERAL NOTES: I. THE LOCATION OF EXISTING UNDERGROUND UTILITIES SHOWN ON THIS PLAN IS APPROXIMATE. PRIOR TO ANY EXCAVATION ON THIS SITE, THE EXCAVATING CONTRACTOR SHALL MAKE THE REQUIRED 72 HOUR NOTIFICATION TO DIG SAFE (1- REMOVE CAPE COD BERM AND PROVIDE 800-344-7233) AND ANY OTHER UTILITIES WHICH MAY HAVE CABLE. PIPE OR PAVED DRAINAGE SWALE INTO BASIN EQUIPMENT IN THE CONSTRUCTION AREA FOR VERIFICATION OF LOCATIONS. SEE PAVEMENT CROSS SECTION PRELIMINARY DIGSAFF N 981504047 APRIL 10th 1:45 PM 2, ALL CONSTRUCTION MATERIALS, COMPONENTS. AND METHODS EMPLOYED ON THIS PROJECT WORK SHALL CONFORM TO THE TOWN OF YARMOUTH SUBDIVISION REGULATIONS AND\OR THE MASSACHUSETTS DEPARTMENT OF PUBLIC WORKS STANDARD SPECIFICATIONS FOR BRIDGES AND HIGHWAYS AS AMENDED TO PRESENT. 3. ALL DRAINAGE COMPONENTS MUST BE CAPABLE OF WITHSTANDING H-20 WHEEL LOADS. 4. 4' LOAM AND SEED ALL DISTURBED AREAS WHERE APPLICABLE 5. ALL DISTURBED PAVEMENT, CURBING, AND STRIPING TO BE REPLACED. SEE PAVEMENT CROSS SECTION. 6. EXISTING BASINS TO BE CLEANED, SEE DETAIL BELOW. CONTRACT PRIVATE COMPANY TO LOCATE ALL PRIVATE LINES n OR OTHER SOLUTION TO PREVENT OVERFLOWING OF THIS BASIN ONTO LOCUS. 55.7 AS REO . DISTUPBED APEAS ADJOINER SHOULD INSTALL PAVEMENT BERM NT CPOSS SEI TION EXIST. F&G BETWEEN BASIN AND CURB TO PREVENT j- BYPASS OF STORMWATER ONTO LOCUS. TOP STRUCTURE EL- L ISTED IN PLAN 12'0 CPP PITCH VARIES PERF. HDPE HOLES lTYP.) 6'0 WITH 5' WIDE 't H-20 4' DEEP \ INSTALL ' 1000 GAL. LEACHING 12'0 CPP ` TRENCH y.,,,,,, - LEACHPIT ELBOW T EXISTING LEACHING 5 CATCH BASIN (TYP 1 SECTION T HRU DRAIN AGE I ` = A DE TO A DEPTH OF 3* BELOW THE BOTTOM NOT TO S(.aLL OF THE STRUCTURE AND REPLACE WITH CLEAN SAND 4" MIN. PEASTONE AND MIRAFI 140NS FABRIC OVER ALL STONE COMPACT BACKFILL IN 6' LIFTS (95% PRCTR.) PERF. H-20 HDPE PIPE COMPACT SIDES PER MANF. SPEC. •pOp Op• n va O'pOp00 O�0 0 000000 3/4' - 1 1/2 000000 O 00000000000 �. DOUBLE WASHED STONE 00000000 000000 0000000000pOpOp 0 0 0 0 0 0 0 5.0' LEACING TRENCH CROSS SECTION NOT TO SCALE DRAINAGE CALCULATIONS: DRAINAGE AREA - 81,893 SF RATIONAL METHOD 0 -CIA = 0.90(3.0)(1.88AC.)(44&B)=2278 GPM (4) 6' X 6' LEACHPITS WITH 4' STONE = 1552 SF 156' OF 5' X 3' LEACHING TRENCH = 1716 SF TOTAL 3268 SF NEW LEACHING CAPACITY 3268 SF (.7 GPM/SF) = 2287 GPM SAWCUT AND MATCH EXISTING PAVEMENT 3' BITUMINOUS ASPHALT CONCRETE 2' BINDER 1' TOP COURSE MASS DPW TYPE 11 6' DENSE GRADED CRUSHED STONE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MPROCTOR TEST ASS DPW M2.D1.7 COMPACTED TO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00000000000000000000000000000 95'6 VIB DRY DENSITY MOD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 WITH NBRATORY ROLLER. O O 0 0 0 0 0 0 0 0 0 0 CLEAN SAND BACKFILL COMPACT SUBGRADE WITH VIBRATORY ROLLER. ALL FILL COMPACTED IN 6' LIFTS. PROPOSED PAVEMENT CROSS SECTION NOT TO SCALE 98-095 o CONTRACT PRIVATE COMPANY TO LOCATE ALL PRIVATE LINES 53.9 AH3 COD -'\ YYY r iL 1 It I \ 1 'I 1 EXISTING DRAINAGE SYSTEM AHI 54.9 EYIST+NG CCIINCRE , I l 44. X EXISTING DRAINAGE 410 (TYP.) d E%1871 BASIN F ' , \ e TOP STRUC RE EL. 5 . 55.1 V OUT EL. .6'1 '1 �-+' ELECTRIC MAR NGS O 7-_m' s COMPLETE IN T AREA / PRO SED DRAM E ' ' r SYSTEM r I IFY�IGS;AFE 1 1 TOP TRUCTURE . 49.5 XISTINC CAS LINE INV. 47.5 1 F&G T GRADE (55. ) L e ,, EXSTIFG BASIN Fb:G 55.0' ' II `' AH2 TIOP STFUCTURE EL'153.2 ; e I INV, . OU' EL 51.2't - Oh ilii `r: TOP S TURE EL. 4 I II I IIS RA I, F&G TO RADE l ; re r II a PROPOSED LEACH TR / I ' 5' WIDE X 3' DEEP 1 PERF H-20 HDPE INV. EL. 47.5 r '. ��` ✓` LEVEL BET. PITS TOP. STRUCTURE EL. 49.5 �`��• it ' a INV.'S 47.5 F&G TO GRADE (55.81). If `1 TOP STRUCTURE EL. 49.5 ELECTR r INV.'S 47.5 INCOMPLE / F&G TO GRADE (56.61) 1 OTIFY DI r7 ,Q91� 1 X6'0, � I , 1 i EXISTING A&P SUPERMARKET I DATE SOIL BORING SOIL BORING SOIL BORING AUGER HOLE 1 AUGER HOLE 2 AUGER HOLE 3 DATE: 4-10-98 DATE: 4-11-98 DATE: 4-11-98 SOIL EVALUATOR: SOIL EVALUATOR: SOIL EVALUATOR: DAN OJALA (OCE) DAN OJALA (DCE) DAN OJALA (DCE) 0" 54.6 SANDY LOAM 4' 0' 55.6 4" SANDY LOAM 0' 4" SANDY LOAM 55.8 , IS' 20" 54' SAND FILL 53.1 12" 14 30' 50.1 SAND FILL 54.6 20• 53.1 SAND FILL 4' BLUESTONE BLUESTONE BLVESTONE FILL SAND 7 SAND FILL 7.5YR6/4 GREY SANDY LOAM 10% GRAVEL GREY LOAMY SAND --GREY LOAMY SAND 10YR5/2 10YR5/240, 107, GRAVE 10% GRAVEL 52.3 60' 50.8 78" 48.1 LOAMY SAND 10YR5/6 M/C SAND t0YR6/6 66" 50.1 M/C SAND M/C SAND 114' a51 10YR6/6 TRACE SILT MED 108" 46.6 10YR6/4 WHITE 10°1, GRAVEL SAND 2.5Y7/3 MED. WHITE SAND 176"1 139.9 178" 2.577/3 40.8 90" 48.3 NO GROUNDWATER FOUND ,NO GROUNDWATER FOUND NO GROUNDWATER FOUND NOTE: GROUNDWATER MAPS INDICATE GROUNDWATER AT EL. 151 a CONTACTS: PROJECT MANAGER: GEORGE UCHOWID HAMPSHIRE MANAGEMENT COMPANY PH. 1-973-734-4244 15 MAPLE AVENUE FAX. 1-973-292-0035 MORRISTOWN, N.J. 07960 SITE ENGINEER: DOWN CAPE ENGINEERING. INC. PH, 362-4541 FAX. 362-9880 21 91 SUPPLEMENTAL EXIS71NC DRAINAGE SYSTEM DRAINAGE PLAN - 2 SOLID 'BASINS WITH ONE LEACH TRENCH k ONE OF LAND IN LEACH PIT. , (SOUTH) YARMOUTH, MA PREPARED FOR YARMOUTH 86 ASSOCIATES C/O HAMPSHIRE MANAGEMENT 484 STATION AVENUE SOUTH YARMOUTH, MA 02664 SCALE: i" =20' DATE: 4-15-98 20 0 20 40 60 Feet off 508-362-4541 _ to% 508 362-9880 _ down cape engineering, inc. AIA Of CIVIL ENGINEERS QUA CWlJI LAND SURVEYORS w"T N 939 main st. yarmouth, ma 02675 P. E.