CITY OF GRAND PRAIRIE GENERAL NOTES FOR PRIVATE DEVELOPMENT (Revision October 2012) 1. All work shall be done in accordance with the currentCity of Grand Prairie standards and specifications and the North Central Texas Council of Governments (N.C.T.C.O.G.) "STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION" along with all of the latest amendments. Copies may be obtained from the "NORTH CENTRAL COUNCIL OF GOVERNMENTS", PO Drawer 5888, Arlington, Texas, 76005-5888, Phone (817) 640-3300; also available at www.publicworks.dfwinfo.com A copy of the contract documents, plans and specifications shall be available on-site at all times by the Contractor. 2. All communication between the City and the Contractor shall be through the City Inspector only. It is the responsibility of the contractor to contact the appropriate department for inspections of work not falling under the Public Works Construction Permit. 3. The location and depth of all utilities shown on the plans are approximate and there may be other unknown existing utilities not shown on the plans. All existing utilities shall be field verified and protected by the Contractor prior to the start of construction. Also see General Note No. 4(D). The contractor shall contact the following utility companies 72 hours prior to doing any work in the area: (a) Atmos Gas Line Location PH (817) 303-2914 (b) TXU Electric Delivery PH (972) 923-4245 (c) AT&T Telephone Co. Line Location PH (972) 660-0422 (d) Time Warner Cable Company Line Location PH (214) 320-7396 (e) City Utility Mains Line Location PH (972) 237-8413 (f) City Utility Mains City Inspector PH (972) 237-8141 (g) City Transportation Services PH (972) 237-8139 (h) City Fire Administration PH (972) 237-8302 (i) Verizon PH (800) 624-9675 (j) U.S. Sprint PH (800) 521-0579 (k) AT&T PH (800) 252-1133 (l) Trinity River Authority PH (972) 262-5186 (m)Texas Department of Transportation (Dallas Area) PH (972) 291-4043 Texas Department of Transportation (Tarrant Area) PH (817) 370-6500 (n) City Fiber Optics and Traffic Signals–City Streets Division PH (972) 237-8525 (o) Dig TESS PH (800) 344-8377 4. It shall be the responsibility of the Contractor to perform the following: (a) Prevent any property damage to property owner's poles, fences, shrubs, mailboxes, etc. (b) Locate, verify working condition and protect all existing sprinkler systems lines and heads (if any) within areas disturbed by construction activities. Remove, adjust and reinstall in good condition equal to or better than existing condition; replace, if in direct conflict, with the same or better quality material and appurtenances, all at the Contractor’s own expense. (c) Provide access to all drives during construction. (d) Protect all underground and overhead utilities and repair any damages. Also see General Note No. 3. (e) Notify all Utility Companies and verify location of all utilities prior to the start of construction. (f) Cooperate with the Utility Companies where utilities are required or specified to be relocated. (g) Work in close proximity to and protect existing Utility Mains, traffic lights and poles. (h) Any item not specifically called out to be removed shall be brought to the attention of the Engineer of Record prior to removing that item or it shall be replaced at the Contractor’s own expense. (i) Any tree, shrub, or grassed areas damaged by the Contractor’s work shall be replaced at the Contractor’s expense to existing or better condition. 5. In the preparation of the plans and specifications, the Engineer of Record has endeavored to indicate the location of existing underground utilities. It is not guaranteed that all lines or structures have been shown on the plans. The contractor shall request for line locates as directed in item #3. The Engineer of Record shall be notified about any conflicts to provide written direction and revised plans as required. 6. Verification of the condition of existing City utilities prior to connections shall be the responsibility of the contractor. The contractor shall request for line locates as directed in item #3. 7. The location for the disposal of construction material shall be approved by the City of Grand Prairie Engineering Division prior to the start of construction. 8. All phases of construction must be coordinated with the Engineer of Record. Also, the Contractor is required to coordinate with the property owners in order to minimize conflicts. 9. Field adjustments may be necessary and shall be carried out as directed in written form, and revised plans as needed, by the Engineer of Record. The adjustments shall be coordinated with the contractor and the City Engineering Inspector. 10. The Contractor shall verify, locate, and protect existing water, wastewater, fiber optic cable/pathways, traffic signals, storm drainage, gas, electric and telephone mains and services and restore service in case of any damage. 11. The Contractor shall contact the City of Grand Prairie Transportation Services Department prior to any sign removal. Please See General Note No. 4. Sign removal and reinstallation/relocation shall be in good condition equal to or better than existing condition, and conform to the Engineer of Record's specifications. 12. All fences, signs, and property corner monuments removed or damaged during construction shall be replaced with new material in conformance with the City Engineer's specifications. 13. The Contractor shall relocate existing mailboxes in conflict with the proposed improvements and as specified on the plans, in good condition equal to or better than existing condition, complete in place. The mailboxes shall be accessible at all times for mail delivery. 14. The Contractor shall be responsible for taking all precautions to protect existing trees outside the scope of this Project or those trees not designated in the plans to be removed. 15. The Contractor shall be responsible for repairing any damage caused by the Contractor outside of the designated work area with new quality material at the Contractor's expense. 16. The Contractor shall locate, verify working condition and protect all existing sprinkler systems lines and heads (if any), and shall: remove, adjust and reinstall these facilities in good condition equal to or better than existing condition; replace, if in direct conflict, with the same or better quality material and appurtenances. 17. The Contractor shall submit batch designs for concrete and grout for review by the City prior to any placement for any publicly dedicated infrastructure. 18. All existing grades shown on the plans are approximate and are based on the best information available. Grades shall be verified and any discrepancy brought to the attention of the Engineer of Record for evaluation and adjustments as needed. 19. All backfill for ditch lines are to be mechanically tamped to 95% STD Proctor density (ASTM D698), at a moisture content near optimum (-2% to +2%, or as specified by the Engineer of Record). Backfill and materials testing shall be performed by the City selected materials testing firm. Costs of services shall be paid by the developer prior to start of construction. 20. Contractor to fill all voids under existing pavement when installing new line. Also all ditch lines must be filled at the end of each day’s work. 21. All pipes shall be kept free of trash and dirt at all time. At the end of each day, the pipe shall be temporarily sealed/connected. All pipe installation shall be performed as recommended by the manufacturer. The contractor shall inspect the site daily and keep the site free of trash and construction debris. 22. The Contractor shall keep the existing fire hydrant(s) in service at all times. 23. The Contractor shall maintain the existing water mains in service during all phases of construction. Leaks caused by the Contractor shall be repaired immediately at the Contractor's expense. Leaks along the existing water main close to the working area, caused by vibration, etc. (during working hours) shall be repaired by the Contractor with the City only providing the required parts. The City will repair all leaks if the Contractor is not on the job-site (primarily after working hours); if the leak is directly caused by the Contractor and not repaired, all charges incurred shall be billed to the Contractor. 24. All cutting and plugging of the existing water main, where specified on the plans, shall include all labor, fittings and appurtenances required to perform this work. 25. The contractor shall contact the assigned inspector for the operation of all water valves & scheduling of services from Water/Wastewater. 26. The contractor shall maintain the existing water mains and services in operation when installing the proposed water main. This shall include any temporary connections, if required. 27. The contractor must notify each property owner a minimum of 24 hours prior to shutting off water for connection to new main. The contractor shall notify the City Engineering Inspector a minimum of 72 hours in advance for all water or wastewater locates or shut offs of water. 28. The contractor shall maintain the existing wastewater mains and services in operation when installing the proposed wastewater main. This shall include any temporary connections, if required. 29. The Engineer of Record shall specify the use of pre-cast or cast-in-place manholes on the plans. It shall be the contractor’s responsibility to verify the condition of existing manholes at tie in loctions. 30. The maximum deflection of pipe joints shall not exceed that recommended by the pipe manufacture. If it is necessary to deflect the pipe (greater that the recommended amount) the Contractor shall provide fittings as needed. 31. Prior to the start of construction, the City Engineering Inspector, City Water/Wastewater representative and the contractor shall make a dry run to the system to insure, to the extent possible, that the utility can be found and secured. Any issues shall be brought to the attention of the Engineer of Record to provide written direction and provide revised plans as needed. 32. Traffic Control Plans shall be submitted to the City of Grand Prairie Transportation Services Department. The Traffic Control Plan and barricades shall maintain traffic flow and shall be in accordance with the latest edition of the TMUTCD and prepared by a Work Zone Certified Technician. Traffic Control Plans shall be submitted a minimum of two weeks in advance of work commencing. Lane closures shall only be allowed between the hours of 9:30am to 3:30pm unless approved by Transportation Services. Temporary Street closure requests shall be submitted in writing. If approved, notifications to Police, Fire, Mail, Garbage and Schools shall be made by Transportation Services. There are no guarantees that street closings will be approved by the City. 33. All pavement markings, including raised pavement markers, lane striping, transverse markings, signs and other traffic control devices, disturbed during construction shall be maintained, repaired or replaced at the contractor’s expense. 34. The contractor shall maintain the flow of traffic at all times and provide access to all drives. Requests for over-night/temporary plating of open cuts in the City right-of-way shall be made in writing forty-eight (48) hours prior to the removal of the paved surface and shall be evaluated on a case-by-case basis and approved by the Director of Transportation or his representative. 35. All detention basins shall be sodded with grass, landscaped, and irrigated in accordance with City standards. 36. Seed/sod shall be furnished to establish ground cover over all disturbed areas as an erosion control measure. The Contractor shall not wait until the completion of the entire project before doing this work. The project shall not be considered for acceptance by the City unless the establishment of 80% ground cover is ensured. 37. Sheeting, shoring, and bracing: The contractor will abide by all applicable federal, state, and local laws governing excavation. Trench’s side slopes shall meet Occupational Safety and Health Administration (OSHA) standards that are in effect at the time of construction. Sheeting shoring and bracing shall be required if side slope standards are not met. A pull box, meeting OSHA standards, will be acceptable. The Contractor shall submit site specific, detailed plans and specifications for trench safety systems that meet OSHA standards that are in effect at the time of development of project when trench excavation will exceed a depth of five (5) feet. These plans will be sealed by an Engineer registered by the State of Texas and submitted to The City of Grand Prairie prior to obtaining release of the public works construction permit. 38. The Developer/Owner and Contractor are required by the Clean Water Act, EPA regulations, the TPDES, and NPDES General Permit to develop a site specific Storm Water Pollution Protection Plan (SWPPP) for the project which includes all disturbed areas by the construction including borrow, staging and storage areas and to secure a permit from TCEQ. The SWPPP with required inspection reports must be kept up to date and kept on the construction site at all times. The Developer/Owner and Contractor must prepare a Notice of Intent (NOI) and secure a permit form TCEQ for large construction sites of 5 or more acres of disturbed area with a copy of the NOI and the required Construction Site Notice posted at the construction entrance in clear view of the public during the construction. For large construction sites, after the site is 70% or greater stabilized so that there is no further danger of erosion and sedimentation pollution from the site disturbed areas, the Developer/Owner and Contractor must prepare and submit a Notice of Termination (NOT) to TCEQ. A copy of the NOI and NOT must be submitted to the City Engineer for each permitted project. See the State regulations General Permit to Discharge Waste under the Texas Pollution Discharge Elimination System (TPDES) No. TX 150000. 39. All erosion control devices shown on the plans released for construction shall be installed in accordance with the plan sequencing prior to commencing any earth disturbing activities. Failure to install the erosion control devices before starting the earth disturbing activities may result in sanctions including, but not limited to, withholding of release of construction permits, inspections, payment of City funded portions of the project, suspension of construction activities, or citations. Erosion control devices shall be installed and maintained in compliance with the project plans, City storm water ordinance and/or SWPPP and General Permit. 40. The contractor shall conform activities to the SWPPP as specified, including installing, maintaining, and removing temporary pollution controls, conducting and documenting inspections of pollution controls, sprinkling for dust control, maintaining spill response equipment on-site, and other "good housekeeping" practices. Minimum pollution controls include silt fences (or erosion control mats), stabilized construction entrance, establishing grass, sprinkling for dust control. Hay products are not acceptable as BMP’s. Other methods of pollution control may be acceptable by the City. The Contractor shall also be responsible for submitting a Notice of Intent (NOI) and Notice of Termination (NOT) for the project. 41. It shall be unlawful for any person to lay, construct, build, grade, gravel, pave, surface, excavate, resurface, or do any work in or upon any public street, alley, easement, thoroughfare or public place within the City, without first having obtained a permit to do such work from the Director of Public Works, and without having paid a permit fee to the City, and having made and executed a bond to the City in the sum of one-hundred (100) percent of the total contract price as directed in Article 12 of the Unified Development Code. The permit shall be for the specific work contemplated. The permittee shall notify the City Engineer of the construction start up date and an expected completion date. 42. These General Notes shall be included within the design documents and shall be sealed and signed by the Engineer of Record; therefore, certifying that these notes have not be altered as received from the City of Grand Prairie.