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Difficult Run Force Main Rehabilitation

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Difficult Run Force Main Rehabilitation

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Difficult Run Force Main Rehabilitation

  1. 1. A Fairfax County, VA, publication Department of Public Works and Environmental Services Working for You! Difficult Run Force Main Rehabilitation Project No. WW-000008-003 Hunter Mill and Dranesville Districts October 20, 2017
  2. 2. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division
  3. 3. Project Details Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Description: Rehabilitation of a 5.7 mile 36-inch force main sanitary sewer between Great Falls and Vienna to serve the concurrently-rehabilitated Difficult Run Pump Station located off Colvin Run Road in Great Falls. This project was substantially complete on October 6, 2017. Project Overview: • Cleaning, video inspection, rehabilitation, and hydrostatic testing of approximately 30,000 linear feet of 36” ductile iron and steel force main sewer. • Removal and replacement of approximately 2,600 linear feet of 36” pipe. • Structural (Cured-in-Place) re-lining of approximately 4,000 linear feet of pipe. • Completion of approximately 60 internal and external joint repairs along pipeline. • Installation of six concrete access vaults for future maintenance and inspection of the force main. Project Team: • Andy Royse, P.E., Wastewater Design and Construction Division • Shwan Fatah, P.E., Wastewater Collection Division • Jonathan Okafor, P.E., Wastewater Collection Division
  4. 4. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Project Location – Colvin Run Road in Great Falls to Glengyle Drive in Vienna
  5. 5. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Timber matting used to access force main locations along the Difficult Run Stream Valley
  6. 6. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Access and staging area near Rhapsody Drive in Vienna for pipe re-lining and pipe replacement work
  7. 7. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Pipe replacement in Vienna
  8. 8. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Preparing for structural re-lining of force main on Carey Lane in Vienna
  9. 9. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Cured-in-place re-lining of pipe on Glengyle Drive in Vienna
  10. 10. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Transition coupling connecting steel pipe to ductile iron pipe
  11. 11. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Connecting re-lined pipe to ductile iron pipe section
  12. 12. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Providing thrust restraint
  13. 13. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Permanent access vault over cut steel pipe
  14. 14. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Securing removable ductile iron spool piece inside access vault
  15. 15. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Site restoration along force main easement
  16. 16. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Site restoration in neighborhoods
  17. 17. Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Site restoration on Glengyle Drive in Vienna
  18. 18. Additional Information For additional Information, please call www.fairfaxcounty.gov/dpwes Difficult Run Force Main Rehabilitation Capital Facilities/Wastewater Design and Construction Division Matthew Kaiser, Public Information Officer 703-324-8455, TTY 711 Matthew.Kaiser@fairfaxcounty.gov

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