CITY OF TROY DESIGN STANDARDS AND CONSTRUCTION SPECIFICATIONS PREPARED BY: F-7587 JANUARY 2010
TABLE OF CONTENTS SECTION 1 SECTION 2 SECTION 3 SECTION 4 SECTION 5 SECTION 6 APPENDIX ROADWAY DESIGN DRAINAGE DESIGN DESIGN CRITERIA FOR WATER PROJECTS DESIGN CRITERIA FOR WASTEWATER PROJECTS CONSTRUCTION SPECIFICATIONS STANDARD DETAILS City of Troy Sewer Details City of Troy Water Details City of Troy Roadway Details City of Troy Erosion Control Details BIBLIOGRAPHY CONSTRUCTION PLAN CHECKLIST
Section 5 Construction Specifications 5.1 GENERAL The City of Troy has adopted the Standard Specifications for Public Works Construction, current edition, as published by the North Central Texas Council of Governments (NCTCOG). The following portions of this Section address amendments to those specifications that the City of Troy has chosen to make. 5. 2 PART I GENERAL PROVISIONS 1.24.3 TRENCH SAFETY Add the following: 'The CONTRACTOR shall comply with the US Department of Labor Occupational Safety and Health Administration (OSHA) regulations pertaining to excavations, trenching, and shoring and shall provide and familiarize its employees involved with excavation and trenching with the provisions in OSHA Pamphlet No. 2226, Excavating and Trenching Operations.
GENERAL CONSTRUCTION NOTES (Sheet 1) 1. CONTRACTOR SHALL MAKE AN EXAMINATION OF THE PROJECT SITE AND COMPLETELY FAMILIARIZE HIMSELF WITH THE NATURE AND EXTENT OF THE WORK TO BE ACCOMPLISHED. NO EXTRA COMPENSATION WILL BE ALLOWED FOR ANY WORK MADE NECESSARY BY UNUSUAL CONDITIONS OR OBSTACLES ENCOUNTERED DURING THE PROGRESS OF THE WORK, WHICH CONDITIONS OR OBSTACLES ARE READILY APPARENT UPON A VISIT TO THE SITE. IF THERE ARE ANY QUESTIONS IN THIS REGARD OR IF THERE ARE ANY DISCREPANCIES BETWEEN THE PLANS AND ACTUAL SITE CONDITIONS, THE CONTRACTOR SHALL NOTIFY THE ENGINEER PRIOR TO SUBMISSION OF BIDS. 2. THE CONTRACTOR SHALL CONTACT ALL LOCAL UTILITIES COMPANIES AND ANY OTHER UTILITY COMPANY THAT SERVES THE AREA AT LEAST 72 HOURS PRIOR TO CONSTRUCTION TO VERIFY LOCATIONS OF EXISTING UTILITY LINES. THE FOLLOWING ARE THE TELEPHONE NUMBERS OF THE ENTITIES MOST LIKELY TO BE AFFECTED. TEXAS ONE CALL 1-800-245-4545 TEXAS EXCAVATION SAFETY SYSTEM 1-800-344-8377 ONCOR (DENNIS LANTRIP) 1-254-554-2243 CITY OF TROY, TEXAS 1-254-938-2505 CABLEVISON 1-254-200-3401 CENTROVISION 1-254-773-1163 SOUTH WESTERN BELL 1-800-869-8344 AT&T (CHARLIE KOHL) 866-624-5622 or 1-254-773-8575 3. PRIOR TO THE BEGINNING OF ANY CONSTRUCTION, THE CONTRACTOR SHALL VERIFY HORIZONTAL AND VERTICAL LOCATIONS OF ALL EXISTING UTILITIES LOCATED WITHIN THE VICINITY OF ANY WORK. IF THE EXISTING UTILITIES ARE IN ANY WAY DIFFERENT FROM WHAT IS SHOWN ON THE DRAWINGS, THEN IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO NOTIFY THE OWNER AND THE PROJECT ENGINEER BEFORE PROCEEDING WITH ANY CONSTRUCTION. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL REPAIRS TO FIX DAMAGES INCURRED TO EXISTING UTILITIES DURING CONSTRUCTION. 4. CONTRACTOR SHALL MAKE ALL DUE PRECAUTIONS TO PROTECT EXISTING UTILITIES. IF ANY DAMAGE OCCURS, TO EXISTING UTILITIES, DAMAGE IS TO BE REPAIRED IMMEDIATELY TO AT LEAST PREEXISTING CONDITION AT NO ADDITIONAL COST TO THE OWNER. 5. THE CONTRACTOR SHALL NOTIFY THE APPLICABLE UTILITY COMPANY IMMEDIATELY TO OBTAIN PROCEDURE DIRECTIONS. WHEN UNALLOCATED OR INCORRECTLY LOCATED UNDERGROUND PIPING OR A BREAK IN THE LINE OR OTHER UTILITIES AND SERVICES ARE ENCOUNTERED. CONTRACTOR TO COOPERATE WITH THE APPLICABLE UTILITY COMPANY IN MAINTAINING ACTIVE SERVICE IN OPERATION. 6. ALL BARRICADES AND SIGNS SHALL CONFORM TO THE LATEST EDITION OF THE TEXAS MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FOR STREETS AND HIGHWAYS. 7. WHERE NEW CONSTRUCTION TIES TO EXISTING FACILITIES, THE PROPER SAW CUT AND CONNECTION SHALL BE MADE USING GOOD WORKMANSHIP AND PROPER TRANSITION TECHNIQUES TO BE APPROVED BY THE ENGINEER. 8. THIS PROJECT SHALL CONFORM TO THE REQUIREMENTS OF THE STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION NORTH CENTRAL TEXAS LATEST EDITION. THE TECHNICAL SPECIFICATIONS INCLUDED WITHIN THE PROJECT MANUAL SHALL SUPERSEDE ABOVE REFERENCED SPECIFICATIONS. 9. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO SUPPLY AND INSTALL ALL MATERIALS SO AS TO MEET OR EXCEED PROJECTS SPECIFICATIONS, STATE AND CITY OF TROY, TEXAS CODES AND ORDINANCES. 10. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PAYING AND OBTAINING PERMITS FROM THE CITY, STATE, OR OTHER REGULATORY AGENCIES TO PERFORM WORK.
GENERAL CONSTRUCTION NOTES (Sheet 2) 11. ALL DEMOLITION AND EXCAVATED MATERIALS SHALL BE LEGALLY DISPOSED OF OFF THE SITE, UNLESS OTHERWISE INSTRUCTED BY THE OWNER, OR BY THE OWNERS REPRESENTATIVE. 12. THE CONTRACTOR SHALL CONTACT THE ENGINEER AND THE CITY OF TROY PROJECT REPRESENTATIVE 48 HOURS BEFORE COMMENCING CONSTRUCTION COMMENCES. 13. ALL CONSTRUCTION OPERATIONS TO BE ACCOMPLISHED IN ACCORDANCE WITH APPLICABLE REGULATIONS OF THE U.S. OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA). COPIES OF THE OSHA STANDARDS MAY BE PURCHASED FROM THE U.S. GOVERNMENT PRINTING OFFICE; INFORMATION AND RELATED REFERENCE MATERIALS MAY BE OBTAINED FROM OSHA, 903 SAN JACINTO, AUSTIN, TEXAS. 14. THE CONTRACTOR SHALL BE RESPONSIBLE AND LIABLE FOR ALL JOB SITE SAFETY, MANAGEMENT OF JOB SITE PERSONNEL, SUPERVISION OF THE USE OF JOB SITE EQUIPMENT AND DIRECTION OF ALL CONSTRUCTION PROCEDURES, METHODS AND ELEMENTS REQUIRED TO COMPLETE THE CONSTRUCTION OF THE PROPOSED IMPROVEMENTS. 15. CONTRACTOR TO MAINTAIN ACCESS TO PUBLIC AND PRIVATE FACILITIES DURING CONSTRUCTION. ALL CONSTRUCTION ACTIVITIES SHALL BE COORDINATED WITH THE CITY OF TROY. 16. BLASTING IS NOT PERMITTED ON THIS PROJECT. 17. CONTRACTOR SHALL TRANSITION NEW UTILITY CONSTRUCTION, SO AS TO MINIMIZE DAMAGE TO EXISTING VEGETATION, PLANTER BEDS, UTILITIES, SIDEWALKS, AND ROADWAYS. TRANSITIONS SHALL BE APPROVED BY OWNER OR ENGINEER. 18. THE CONTRACTOR SHALL PROTECT ALL SANITARY SERVICES AND MAINTAIN SERVICE THROUGHOUT THE DURATION OF CONSTRUCTION. IN THE EVENT THAT A SERVICE IS DAMAGED DURING CONSTRUCTION THE CONTRACTOR SHALL REPAIR THE SERVICE AT NO ADDITIONAL COST TO THE OWNER. 19. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL AREAS DISTURBED BY CONSTRUCTION FOR A PERIOD EQUAL TO, BUT NOT EXCEEDING, 12 MONTHS. 20. ALL ADDITIONAL PIPING NEEDED TO PROVIDE/ENSURE TEMPORARY POTABLE WATER SERVICES SHALL BE PROVIDED AT NO ADDITIONAL COST TO THE OWNER. 21. IT IS THE CONTRACTORS RESPONSIBILITY TO REESTABLISH AND RESTORE EXISTING VEGETATION AND LANDSCAPING DISTURBED BY CONSTRUCTION. 22. IT SHALL BE THE CONTRACTORS RESPONSIBILITY TO REMOVE EXCESS SPOILS AND MATERIAL DISTURBED BY CONSTRUCTION. 23. ANY EXISTING PAVEMENT, CURBS, AND/OR SIDEWALKS DAMAGED OR REMOVED BY THE CONTRACTOR THAT ARE NOT A PART OF THIS CONTRACT ARE TO BE REPAIRED BY THE CONTRACTOR TO AT LEAST THE PREEXISTING CONDITION, AT HIS EXPENSE, BEFORE ACCEPTANCE OF THE WORK. 24. CONSTRUCTION SPOILS OR MATERIALS TO BE USED FOR PROPOSED CONSTRUCTION, SHALL NOT BE STOCKPILED OR STORED WITHIN 100 YEAR FLOOD PLAIN. 25. NEW SANITARY SEWER MAIN AND SERVICES SHALL BE CONSTRUCTED PER THE LATEST TEXAS COMMISSION ON ENVIRONMENTAL QUALITY STANDARDS AND SPECIFICATIONS.
STANDARD 24" CURB & GUTTER 6" ADAPT GUTTER TO ALLOW DRAINAGE TO FLOW IN ACCORDANCE TO GRADING CONTOURS REINFORCED CONCRETE PAVEMENT (THICKNESS PER GEOTECH) #4 BAR 16" O.C.E.W. OR PER GEOTECHNICAL REPORT, WHICHEVER IS MORE STRINGENT WIDTH VARIES SEE SITE PLAN PREPARED SUBGRADE (PER GEOTECH SPECIFICATIONS) NOTE: 1. METHODS, THICKNESSES, AND MATERIALS USED TO CONSTRUCT PAVEMENT SECTION SHALL CONFORM TO GEOTECHINICAL REPORT TYPICAL REINFORCED CONCRETE PAVEMENT SECTION SCALE: NTS
3" 6 " 3 " 3"=R 4 " =R #3 BAR (TYP.) END AREA 1.56 SQ. FT. ADAPT GUTTER TO ALLOW DRAINAGE TO FLOW IN ACCORDANCE TO GRADING CONTOURS 12" 3 " 6" 6-5/8" 6 " 12" 6 " 2 4" STANDARD 24" CURB AND GUTTER SCALE: nts
PROVIDE EXPANSION JOINTS & DOWELS PROPERTY LINE 18'-0"MIN PROPERTY LINE SIDEWALK SIDEWALK #4 DIA. BARS AT 12" O.C.B.W. 6x6 #6 WIRE MESH ALLOWED CONTRACTION JOINT 1/2" PREMOLDED EXPANSION 1/2" DIA. DOWELS 1.5 R (TYP.) JOINT MATERIAL IN ALL EXPANSION JOINTS EXPANSION JOINTS 21'-0" MIN. 22'-0" MIN. 1/2" DIA. DOWELS DRIVE APPROACH DETAIL SCALE: nts
NEW PAVEMENT EXTENTS Existing Edge of Asphalt SAW CUT, REMOVE AND REPLACE HMAC TO MATCH EXISTING Existing Edge of Asphalt 2 ' TRANSITION NEW CURB TO MATCH EXISTING/NEW PAVEMENT SECTION 2 ' NEW REINFORCED CONCRETE DRIVEWAY APPROACH 2 ' TRANSITION NEW CURB TO MATCH EXISTING/NEW PAVEMENT SECTION SEE PLANS FOR SEE PLANS FOR SEE PLANS FOR RADIUS LENGTH DRIVE WIDTH RADIUS LENGTH New Curb & Gutter New Curb & Gutter CONNECTION TO EXISTING ROADWAY SCALE: NTS
A- SEE PLAN WIDTH 40' MAX EXPANSION JOINT SPACING 1/2" 0 DOWELL BARS 2'-0" LONG WITH APPROPRIATE DOWEL CUP ON THE END 1/2" A 3/8" DIA. 12" O.C. CONTRACTION JOINT 5'-0" 5'-0" 1/2" PREMOLDED EXPANSION JOINT MATERIAL SIDEWALK PLAN SCALE: NTS
NATURAL GROUND #4 @ 12" O.C.E.W. 1 1/2" 1/4" R 4 " VARIES 6" TYP. 4" SAND CUSHION SEE PLANS 3" TYP. 4" MIN. #4 @ 12" O.C.E.W NOTES: 1. #10 WELDED WIRE MESH WITH 6" x 6" OPENING MAY BE USED IN LEIU OF REBAR SHOWN. 2. CONTRACTOR SHALL MAINTAIN A 6 " PER 12" CROSS SLOPE ON SIDEWALK SECTION. SLOPE SHALL PROVIDE DRAINAGE AWAY FROM EXISTING AND/OR PROPOSED STRUCTURES. SIDEWALK SECTION SCALE: NTS
TREE PROTECTION NOTES: 1. THE CONTRACTOR SHALL PROVIDE STRAPPED ON PLANKING TO A HEIGHT OF EIGHT FEET (8'-0"), OR TO THE LIMITS OF THE LOWER BRANCHING, UPON ALL TREES THAT ARE LOCATED WITHIN THE VICINITY OF ANY PROPOSED CONSTUCTION. 2. ANY ROOTS EXPOSED BY CONSTRUCTION ACTIVITY SHALL BE PRUNED FLUSH WITH THE SOIL. BACK FILL ROOT AREAS WITH GOOD QUALITY TOP SOIL AS SOON AS POSSIBLE. IF EXPOSED AND ROOT AREA IS NOT BACK FILLED WITHIN TWO (2) DAYS, COVER WITH ORGANIC MATERIAL IN A MANNER WHICH REDUCES SOIL TEMPERATURE, AND MINIMIZES WATER LOSS DUE TO EVAPORATION. 3. PRIOR TO EXCAVATION OR GRADE CUTTING WITHIN TREE DRIPLINE. MAKE A CLEAN CUT BETWEEN DISTURBED AND UNDISTURBED ROOT ZONES WITH A ROCK SAW OR SIMILAR EQUIPMENT TO MINIMIZE DAMAGE TO REMAINING ROOTS. 4. TREES MOST HEAVILY IMPACTED BY CONSTRUCTION ACTIVITIES SHOULD BE WATERED DEEPLY ONCE A WEEK DURING PERIODS OF HOT, DRY WEATHER. TREE CROWNS SHOULD BE SPRAYED WITH WATER PERIODICALLY TO REDUCE DUST ACCUMULATION. 5. ANY TRENCHING REQUIRED FOR THE INSTALLATION OF LANDSCAPE IRRIGATION SHALL BE PLACED AS FAR FROM EXISTING TREE TRUNK AS POSSIBLE. 6. NO LANDSCAPE TOPSOIL GREATER THAN FOUR INCHES (4") SHALL BE PERMITTED WITHIN THE DRIPLINE OF A TREE. NO SOIL IS PERMITTED ON THE ROOT FLARE OF ANY TREE. 7. PRUNING TO PROVIDE CLEARANCE FOR STRUCTURES, VEHICULAR TRAFFIC, AND EQUIPMENT SHALL TAKE PLACE BEFORE CONSTRUCTION BEGINS. TREE PROTECTION DETAIL 8'MINIMUM 2"x4" WOOD SLATS BOTTOM AS NEAR TO GROUND AS POSSIBLE SCALE: NTS
NOTES: 1. STONE SIZE: 3-5" CRUSHED ROCK. 2. LENGTH: AS EFFECTIVE BUT NOT LESS THAN 50'. 3. THICKNESS: NOT LESS THAN 8". 4. WIDTH: AT LEAST 20'. 5. WASHING: WHEN NECESSARY, VEHICLE WHEELS SHALL BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTRANCE ON TO PUBLIC ROADWAY. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE AND DRAINS INTO AN APPROVED TRAP OR SEDIMENT BASIN. ALL SEDIMENT SHALL BE PREVENTED FROM ENTERING ANY STORM DRAIN, DITCH OR WATERCOURSE USING APPROVED METHODS. 6. MAINTENANCE: THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC ROADWAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AS CONDITIONS DEMAND, AS WELL AS REPAIR AND CLEAN OUT OF ANY MEASURE DEVICES USED TO TRAP SEDIMENT. ALL SEDIMENTS THAT IS SPILLED, DROPPED, WASHED, OR TRACKED ON TO PUBLIC ROADWAY MUST BE REMOVED IMMEDIATELY. 7. DRAINAGE: ENTRANCE MUST BE PROPERLY GRADED OR INCORPORATE A DRAINAGE SWALE TO PREVENT RUNOFF FROM LEAVING THE CONSTRUCTION SITE. 50' MIN. EXISTING GRADE GRADE TO PREVENT RUNOFF FROM LEAVING SITE 8" MIN. ROADWAY PROFILE PROVIDE APPROPRIATE TRANSITION BETWEEN STABILIZED CONSTRUCTION ENTRANCE AND PUBLIC RIGHT-OF-WAY 50MIN. 20'MIN. R.O.W. PLAN VIEW STABILIZED CONSTRUCTION EXIT SCALE: N.T.S.
City of Troy Erosion Control Details NOTES 1. STEEL POSTS WHICH SUPPORT THE SILT FENCE SHALL BE INSTALLED ON A SLIGHT ANGLE TOWARD THE ANTICIPATED RUNOFF SOURCE. POST MUST BE EMBEDDED A MINIMUM OF 1". 2. THE TOE OF THE SILT FENCE SHALL BE TRENCHED IN WITH A SPADE OR MECHANICAL TRENCHER, SO THAT THE DOWNSLOPE FACE OF THE TRENCH IS FLAT AND PERPENDICULAR TO THE LINE OF FLOW. WHERE FENCE CAN NOT BE TRENCHED INTO THE SURFACE (E.G. PAVEMENT), THE FABRIC FLAP SHALL BE WEIGHTED DOWN WITH WASHED GRAVEL ON UPHILL SIDE TO PREVENT FLOW UNDER FENCE. SILT FENCE GEOTEXTILE FABRIC (TYPICAL) 3. THE TRENCH MUST BE A MINIMUM OF 6" DEEP AND 6" WIDE TO ALLOW FOR THE SILT FENCE FABRIC TO BE LAID IN THE GROUND AND BACKFILLED WITH COMPACTED MATERIAL. 4. INSPECTION SHALL BE MADE WEEKLY OR AFTER EACH RAINFALL EVENT AND REPAIR OR REPLACEMENT SHALL BE MADE PROMPTLY AS NEEDED. 5. SILT FENCE SHALL BE REMOVED WHEN THE SITE IS COMPLETED STABILIZED SO AS NOT TO BLOCK OR IMPEDE STORM FLOW OR DRAINAGE. 6" MIN. 6. ACCUMULATED SILT SHALL BE REMOVED WHEN IT REACHES A DEPTH OF 6". THE SILT SHALL BE DISPOSED OF ON AN APPROVED SITE AND IN SUCH A MANNER THAT WILL NOT CONTRIBUTE TO ADDITIONAL SILTATION. SILT FENCE 6" MIN. TRENCH (BACKFILLED) FABRIC TOE-IN SCALE: nts