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HomeMy WebLinkAboutRS-698Am �D O rn r O O Q J CONSTRUCTION NOTES. 1. THE CONTRACTOR SHALL CALL DIGSAFE AT 1- 800 -322 -4844 AT LEAST 72 HOURS, SATURDAYS, SUNDAYS, AND HOLIDAYS EXCLUDED, PRIOR TO .EXCAVATING AT ANY LOCATION. A COPY OF THE DIGSAFE PROJECT REFERENCE NUMBER(S) SHALL BE GIVEN TO THE OWNER PRIOR TO EXCAVATION. 2. LOCATIONS OF EXISTING PIPES, CONDUITS, UTILITIES, FOUNDATIONS AND OTHER UNDERGROUND OBJECTS ARE NOT WARRANTED TO BE CORRECT AND THE CONTRACTOR SHALL HAVE NO CLAIM ON THAT ACCOUNT SHOULD THEY BE OTHER THAN SHOWN. 3. TEST PITS TO LOCATE EXISTING UTILITIES MAY BE ORDERED BY THE ENGINEER. 4. STONE WALLS, FENCES, MAIL BOXES, SIGNS, CURBS, LIGHT POLES, ETC.. SHALL BE REMOVED AND REPLACED AS NECESSARY TO PERFORM THE WORK. UNLESS OTHERWISE INDICATED, ALL SUCH WORK SHALL BE INCIDENTAL TO CONSTRUCTION OF THE PROJECT. 5. ALL PAVEMENT DISTURBED BY THE CONTRACTOR'S OPERATIONS SHALL BE REPLACED IN ACCORDANCE WITH THE SPECIFICATIONS AND AS SHOWN ON THE DRAWINGS. 6. ALL AREAS DISTURBED BY THE CONTRACTOR BEYOND PAYMENT LIMITS SHALL BE RESTORED AT NO ADDITIONAL COST TO THE OWNER. 7. CONCRETE CRADLES OR ARCHES SHALL BE CONSTRUCTED WHERE SHOWN ON THE DRAWINGS OR WHERE DIRECTED BY THE ENGINEER. UNLESS OTHERWISE INDICATED, CONCRETE USED FOR PIPE ANCHOR BLOCKS, BACKING, PIPE CRADLES, ARCHES, AND FILL SHALL HAVE A MINIMUM COMPRESSIVE STRENGTH OF 3000 PSI AT 28 DAYS. 8. CONCRETE THRUST BLOCKS, ANCHOR BLOCKS, OR APPROVED JOINT RESTRAINT METHODS SHALL BE PROVIDED FOR FORCE MAINS WHERE ANY BENDS, TEES, PLUGS, OR WYES ARE INSTALLED, OR WHERE DIRECTED BY THE ENGINEER. FOR THRUST BLOCK DETAILS AND MINIMUM BLOCK BEARING AREAS, SEE DETAILS. 9. THE CONTRACTOR SHALL NOT STORE ANY APPARATUS, MATERIALS, SUPPLIES, OR EQUIPMENT ON DRAINAGE STRUCTURES OR WITHIN 100 FEET OF WETLANDS. 10, FORCE MAIN TRENCHES MAY BE EXCAVATED WIDER THAN THE 'LIMIT OF EXCAVATION AND PAYMENT FOR EARTH EXCAVATION' ABOVE THE 'LINE OF NARROW TRENCH LIMIT.' ANY SUCH ADDITIONAL EXCAVATION SHALL BE AT THE CONTRACTORS EXPENSE AND SHALL NOT BE MEASURED FOR PAYMENT. 11. BELOW THE 'LINE OF NARROW TRENCH LIMIT" THE TRENCH SHOULD NOT BE EXCAVATED BEYOND THE TRENCH WIDTH 'W. IF MATERIAL IS LOOSENED OR REMOVED BEYOND THE ABOVE MENTIONED LIMITS, THE CONTRACTOR WILL BE REQUIRED TO PROVIDE CRUSHED STONE FOR THE FULL WIDTH OF THE TRENCH AT NO ADDITIONAL COST TO THE OWNER. 12. SHEETING TO BE LEFT IN PLACE SHALL BE USED WHERE SHOWN ON THE DRAWINGS OR WHERE DIRECTED BY THE ENGINEER. IT SHALL BE LEFT IN PLACE BELOW A LINE 12 INCHES ABOVE THE TOP OF THE PIPE UNLESS OTHERWISE DIRECTED BY THE ENGINEER. 13. ALL TRENCH EXCAVATIONS SHALL BE COMPLETELY CLOSED AT THE END OF EACH WORKING DAY BY BACKFILLING OR COVERING WITH STEEL PLATES. 14. THE CONTRACTOR MUST GIVE THE ENGINEER AT LEAST 10 DAYS' NOTICE PRIOR TO PERFORMING ANY WORK IN WETLANDS. 15. THE CONTRACTOR SHALL NOTIFY THE LOCAL WATER DEPARTMENT AT LEAST 72 HOURS PRIOR TO EXCAVATING NEAR WATERLINES. 16. THE CONTRACTOR SHALL INSTALL THE PROPOSED FORCE MAIN FROM A POINT AS SHOWN ON THE DRAWINGS TO THE GRADES AND ELEVATIONS AS INDICATED. THIS WORK SHALL BE COORDINATED WITH THE CONTRACTOR RESPONSIBLE FOR CONSTRUCTION BEYOND THE LIMIT OF THIS CONTRACT. (SEE CONTRACT 92 -1) 17. WHEN PERFORMING WORK ON BEDFORD STREET, THE CONTRACTOR SHALL MAINTAIN AT LEAST ONE LANE OF TRAFFIC IN EITHER DIRECTION AT ALL TIMES. THE CONTRACTOR SHALL BE REQUIRED TO UTILIZE APPROPRIATE BARRICADES AND SIGNAGE TO DETOUR THE TRAFFIC AROUND THE CONSTRUCTION SITE. (SEE SPECIFICATIONS FOR TRAFFIC MANAGEMENT PLAN AND STATE HIGHWAY PERMIT.) 18. CONTROL OF GROUNDWATER DURING CONSTRUCTION SHALL BE IN ACCORDANCE WITH SPECIFICATION SECTION 02140, DEWATERING. 19. EXISTING INFORMATION CONTAINED ON THESE DRAWINGS WERE OBTAINED FROM THE FOLLOWING SOURCES: (a) FORCEMAIN — CONTRACT 3, DECEMBER, 1938 —MISC. CONTRACT, JANUARY, 1966 — BEDFORD STREET PLANS, 1973 (b) SANITARY SEWER —MANOR SEWERAGE SYSTEM, 1946 -1947 —TOWN OF LEXINGTON SEWER PLANS, 1949 (c) WATER —TOWN OF LEXINGTON WATER MAIN PLANS, 1925 -1947 (d) GAS — LEXINGTON GAS LIGHT Co., 1927 -1990 (e) STORM DRAIN — EXISTING DRAINAGE FACILITIES PLAN, FIG. E -12, — WILLIAMS ROAD, STREET AND DRAIN RECORD PLAN,1954 (f) TOPOGRAPHY AND STREET /PROPERTY LINES —TOWN OF LEXINGTON ASSESSORS MAPS, APRIL, 1987 BORING L( TOP OF BORING BLOWS REQ EACH SIX It ELEVATION WEIGHT FAL 1, BLOWS REQUIRED TO PENETRATE - -� EACH SIX INCH CHANGE IN ELEVATION USING A 300 POUND WEIGHT FALLING 24 INCHES FIGURE WHEN BELOW BEDROCK INDICATES THE MINUTES REQUIRED TO PENETRATE DEPTH AS MARKED 6 OF ROCK USING STANDARD PROCEDURES 4 2 BOT NOTE: FOR DRILLER'S NAME, S ENCOUNTERED AND OTF PERTINENT DATA SEE B LOGS BOUND IN SPECIF' L W z z �I o LEGEND RCP' PVC! � O DESCRIPTION EXISTING PROPOSED SANITARY SEWER - BORING - cn 18"s vc DUCTILE IRON W MAIN a '0 17 STORM DRAIN VC 0 2 "D RCP — ' - -- - -_— FORCE MAIN - - 20"FM Ac 24 "FM Dl— ELECTRIC E — TELEPHONE T - - -- SANITARY SEWER MANHOLE O GROUNDWATER LEVEL AND 4 FORCE MAIN CLEANOUT MANHOLE i OFMCO STORM DRAIN M z z O -2.01 (NO WATER WAS ENCOUNTERED o a CATCH BASIN IF NO SYMBOL IS PRESENT) GATE VALVE x i 3.0' C AP OR PLUG z UTILITY POLE - -� -- - - -� - - - -�- 0 -- - EDGE OF PAVEMENT __ -- -_- FENCE - a PR OPER TY LINE -+�- 0 w L OF WORK 22" - SOIL STRATA CHANGE AND o m Z U- SPOT ELEVATIONS x 124.0 m .=), C ONTOUR LINES - 5.0' — z ui o BORING R- SIDEWALK ONC.N B;T_ SW CURB (GRAN, CONC, OR BITUM) cc;.c, ec 0 0 L W z z �I o RCP' PVC! � O w t w - BORING - cn v DUCTILE IRON a '0 17 VC 0 0 v AC - ASBESTOS CEMENT T RCP' PVC! � O w t O - BORING - cn DI - DUCTILE IRON a '0 17 VC 0 0 v AC - ASBESTOS CEMENT 7 U -13 -- GROUNDWATER LEVEL AND 4 i z z -2.01 (NO WATER WAS ENCOUNTERED o a IF NO SYMBOL IS PRESENT) °I g a ri T g m LEGEND RCP' PVC! o w t - BORING - cn DI - DUCTILE IRON !� 1 j\ '0 17 VC - VITRIFIED CLAY LEGEND RCP' PVC! - REINFORCED CONCRETE. PIPE - POLYVINYL CHLORIDE - BORING - NUMBER DI - DUCTILE IRON '0 17 VC - VITRIFIED CLAY AC - ASBESTOS CEMENT 7 -13 -- GROUNDWATER LEVEL AND DEPTH FROM TOP OF BORING z z -2.01 (NO WATER WAS ENCOUNTERED a IF NO SYMBOL IS PRESENT) 3.0' z W 0 a 0 w 22" - SOIL STRATA CHANGE AND o m Z U- DEPTH FROM TOP OF BORING m .=), - 5.0' z ui o LA� �r 0 0 0 X 0 �- w J w o' 6.5 W z "BEDROCK" INDICATES BORING WAS MADE IN ROCK 8.0' - INDICATES DEPTH OF BORING TIONS i n it