Special Specification 7021 Water Main and Sewer Line Replacements

Transcription

1 Special Specification 7021 Water Main and Sewer Line Replacements 1. DESCRIPTION Furnish, install, or replace water pipe, water valves, water meters and boxes, water service connections, fire hydrant assemblies, pipe fittings, encasement pipes for water lines, sewer pipe, manholes and supporting materials in conformance with the City of Fort Worth requirements and details shown on the plans. Obtain necessary permits, provide testing as necessary, and request inspection of the completed water and sewer lines prior to being placed in service. 2. PREQUALIFICATION In addition to TxDOT s prequalification, water and sewer utility improvements included in this project must be performed by a Contractor who is prequalified by the Fort Worth Water Department at the time of the bid opening. Reference the following attached specifications for bidder prequalification requirements: Bidders Prequalification s Prequalification Statement Bidder Prequalification Application 3. MATERIALS Furnish all materials in accordance with the requirements shown on the plans or pick-up materials furnished by the utility companies and deliver to the project site. See Article 5, Measurement, Table 1 - Section A: Water and Table 2 - Section B: Sewer, in this document. 4. PERMITS, TESTING, AND INSPECTION 4.1. Permits. Acquire all necessary permits from the City of Fort Worth to perform the work. Please contact the following entities as needed: Fort Worth Water Department Field Operations: (817) Fort Worth Transportation and Public Works: (817) Testing. Provide testing for water mains and sewer lines in conformance to the City of Fort Worth requirements or as directed by the Engineer. Perform the following testing as minimum: For water mains: hydrostatic test, poly pigging, and sterilization test. Reference Specification Cleaning and Acceptance Testing of Water Mains. For sewer lines: Low pressure air test, deflection (Mandrel) test, vacuum test, and Closed Circuit Television (CCTV) Inspection. Reference Specification Sewer and Manhole Testing and Closed Circuit Televisions (CCTV) Inspection Inspection. All water main, sewer lines, and their appurtenances will be inspected by a representative of the City of Fort Worth. These representatives decision of acceptability of the installation will be final. The City of Fort Worth will hold 2 final inspections, one at water and sewer line completion and the other at roadway completion for final utility grade adjustments according to Specification Section attached

2 5. CONSTRUCTION Protect all water mains, sewer lines, vaults and appurtenances at all times during the construction. Promptly repair, at no additional cost to the Owner, any damage to the existing water or sewer system and any interruption to the services such as line stoppages or breakage caused by the Contractor s operation. Follow Location of Existing Utilities Handout per City of Fort Worth requirements Construction Staking. The construction staking and survey must be done by the City of Forth Worth according to the follow specification: Specification Construction Staking and Survey Specifications. Perform the work in such a manner consistent with current City of Fort Worth standards and specifications. Reference the following attached Specifications for the work to be performed: Division 00: General Conditions Maintenance Bond Division 01: General Requirements Substitution Procedures Preconstruction Video Submittals Construction Staking and Survey Division 02: Existing Conditions Utility Removal Abandonment Division 33: Utilities Sewer and Manhole Testing Closed Circuit Televisions (CCTV) Inspection Bypass Pumping of Existing Sewer Systems Joint Bonding and Electrical Isolation Corrosion Control Test Stations Magnesium Anode Cathodic Protections System Temporary Water Services Cleaning and Acceptance Testing of Water Mains Utility Trench Excavation Embedment and Backfill Frame Cover and Grade Rings Adjusting Manholes, Inlets, Valve Boxes, and Other Structures to Grade Concrete Water Vaults Concrete Collars Auger Boring Steel Casing Pipe Installation of Carrier Pipe in Casing or Tunnel Liner Plate Utility Markers-Locators Location of Existing Utilities

3 Bolts, Nuts, and Gaskets Ductile Iron Pipe Ductile Iron Fittings Polyvinyl Chloride (PVC) Pressure Pipe Water Services 1-inch to 2-inch Resilient Seated (Wedge) Gate Valve Connection to Existing Water Mains Fire Hydrants Water Sample Stations Polyvinyl Chloride (PVC) Gravity Sanitary Sewer Pipe Polyvinyl Chloride (PVC) Closed Profile Gravity Sanitary Sewer Pipe Sanitary Sewer Service Connections and Service Line Cast-in-Place Concrete Manholes Precast Concrete Manholes Wastewater Access Chamber (WAC) Epoxy Liners for Sanitary Sewer Structures The specifications can be viewed on the City of Fort Worth s Internet Home Page at fortworthtexas.gov Submittals. Submit the following submittals and types per Submittal Log Table attached according to Specification Section Submittals. 6. MEASUREMENT TxDOT Item No. Description Code Water main and sewer line replacement items will be measured as follows: FTW Bid Item No. Table 1 Section A: Water Fort Worth Bid Item Description FW Spec Unit 0000 *** Water Line Grouting CY 0000 *** Remove 4" Water Line LF 0000 *** Remove 6" Water Line LF 0000 *** Remove 8" Water Line LF 0000 *** Remove 10" Water Line LF 0000 *** Remove 12" Water Line LF 0000 *** Remove 24" Water Line (Casing) LF 0000 *** Remove Asphalt Pvmt SY 0000 *** "-12" Water Abandonment Plug EA 0000 *** Remove 6" Water Valve EA 0000 *** Remove 8" Water Valve EA 0000 *** Remove 12" Water Valve EA 0000 *** Salvage Fire Hydrant EA 0000 *** ' Wide Asphalt Pvmt Repair, Residential LF 0000 *** Temporary Water Services LS 0000 *** Exploratory Excavation of Existing Utilities EA 0000 *** Trench Safety LF

4 0000 *** Utility Markers LS 0000 *** " Casing By Open Cut LF 0000 *** " Casing By Other Than Open Cut LF 0000 *** " Water Carrier Pipe LF 0000 *** Ductile Iron Water Fittings w/ Restraint TON 0000 *** " Water Pipe , LF 0000 *** " Water Pipe , LF 0000 *** " Water Pipe , LF 0000 *** " DIP Water, CSS Backfill LF 0000 *** Fire Hydrant EA 0000 *** Connection to Existing 16" Water Main EA 0000 *** " Water Service, Meter Reconnection EA 0000 *** " Water Service EA 0000 *** /2" Water Service, Meter Reconnection EA 0000 *** /2" Water Service EA 0000 *** " Water Service, Meter Reconnection EA 0000 *** " Water Service EA 0000 *** " Gate Valve EA 0000 *** " Gate Valve EA 0000 *** " Gate Valve EA 0000 *** " x 6" Tapping Sleeve & Valve EA 0000 *** " x 12" Tapping Sleeve & Valve EA 0000 *** " x 12" Tapping Sleeve & Valve EA 0000 *** N/A Gravel N/A SY TxDOT Item No. Description Code FTW Bid Item No. Table 2 Section B: Sewer Fort Worth Bid Item Description FW Spec Unit 0000 *** Remove Asphalt Pvmt SY 0000 *** Remove 6" Sewer Line LF 0000 *** Remove 8" Sewer Line LF 0000 *** Remove 10" Sewer Line LF 0000 *** " Sewer Abandonment Plug EA 0000 *** " Sewer Abandonment Plug EA 0000 *** Remove 4' Sewer Manhole EA 0000 *** Abandon Manhole EA 0000 *** ' Wide Asphalt Pvmt Repair, Residential LF 0000 *** Pre-CCTV Inspection LF 0000 *** Post-CCTV Inspection LF 0000 *** Manhole Vacuum Testing EA 0000 *** Bypass Pumping LS

5 0000 *** Exploratory Excavation of Existing Utilities EA 0000 *** Trench Safety LF 0000 *** Utility Markers LS 0000 *** Concrete Collar EA 0000 *** " Casing By Open Cut LF 0000 *** " Sewer Pipe , , LF 0000 *** " DIP Sewer, CSS Backfill LF 0000 *** " DIP Sewer, CSS Backfill LF 0000 *** Sewer Pipe , , LF 0000 *** N/A 15 DIP Sewer, CSS Backfill LF 0000 *** Ductile Iron Sewer Fittings TON 0000 *** Epoxy Manhole Liner VF 0000 *** ' Manhole , EA 0000 *** " Sewer Service EA 0000 *** N/A Clay Dams N/A EA 7. PAYMENT The work performed and materials furnished in accordance with this Item and measured as provided by under Measurement, will be paid for at the unit price bid for the various items specified on the plans. This price is for full compensation for furnishing all equipment, materials, tools, labor, permits, testing, and incidentals necessary to satisfactorily complete the work as detailed on the plans including excavation, embedment, and backfill