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A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Project No. WW-000009-007
Mount Vernon District
March 29, 2018
Pohick Stream Stabilization Phase II – Areas 2 & 3
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Project Details
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Description:
This project included approximately 1,000 feet of stream work involving the stabilization of areas 2 & 3 of Pohick
Creek located along the southern and western perimeter of the Noman M. Cole Jr., Pollution Control Plant (NCPCP).
This portion of embankment was badly undermined and had been endangered of encroaching upon the NCPCP fence
line towards the equalization basins. This project was substantially complete on February 22, 2018.
Project Overview:
Area 2:
- Moving the embankment line away from the equalization basin (50 feet back from the original location)
- Installation of an imbricated rock wall on the north side embankment
- Installation of 4 rock veins
- Placement of Class II stone on the south embankment facing direct flow impact of the stream
- Re-grading and coir matting placement on the southern embankment
Area 3:
- Moving the Hogge Run tributary away from the equalization basin (10 feet back from the original location)
- Placement of Class I rock on the western toe
- Placement of coir matting on the east side of the stream
Project Team:
• Mohamed Madih, P.E., Wastewater Design and Construction Division
• Badana Mohamadi, Wastewater Design and Construction Division
• Chris Triolo, P.E., Utilities Design and Construction Branch
• Nikta Attar, Wastewater Treatment Division
• David Cooper, Resident Engineer Services
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Mount Vernon District, Tax Map No. 108-3
Area 2
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Installation of Class I Stone Along Hogge Run
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Placement of Coir Matting in Area 3
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Armoring Embankment Turn in Area 2
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Severe Undermining of North Side Embankment
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Imbricated Stone Wall Development
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Pohick Stream Stabilization Phase II – Areas 2 & 3
Rock Weir Tie-in to the South Embankment
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Finished Rock Vein
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Regrading and Coir Matting Placement in South Side of Area 2
Before After
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Pohick Stream Stabilization Phase II – Areas 2 & 3
Completed Planting Work
Additional Information
For additional Information, please call
www.fairfaxcounty.gov/dpwes
Pohick Stream Stabilization Phase II – Areas 2 & 3
Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
Matthew Kaiser, Public Information Officer
703-324-8455, TTY 711
Matthew.Kaiser@fairfaxcounty.gov

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Pohick Stream Stabilization Phase II - Areas 2 and 3

  • 1. A Fairfax County, VA, publication Department of Public Works and Environmental Services Working for You! Project No. WW-000009-007 Mount Vernon District March 29, 2018 Pohick Stream Stabilization Phase II – Areas 2 & 3
  • 2. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch
  • 3. Project Details Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Description: This project included approximately 1,000 feet of stream work involving the stabilization of areas 2 & 3 of Pohick Creek located along the southern and western perimeter of the Noman M. Cole Jr., Pollution Control Plant (NCPCP). This portion of embankment was badly undermined and had been endangered of encroaching upon the NCPCP fence line towards the equalization basins. This project was substantially complete on February 22, 2018. Project Overview: Area 2: - Moving the embankment line away from the equalization basin (50 feet back from the original location) - Installation of an imbricated rock wall on the north side embankment - Installation of 4 rock veins - Placement of Class II stone on the south embankment facing direct flow impact of the stream - Re-grading and coir matting placement on the southern embankment Area 3: - Moving the Hogge Run tributary away from the equalization basin (10 feet back from the original location) - Placement of Class I rock on the western toe - Placement of coir matting on the east side of the stream Project Team: • Mohamed Madih, P.E., Wastewater Design and Construction Division • Badana Mohamadi, Wastewater Design and Construction Division • Chris Triolo, P.E., Utilities Design and Construction Branch • Nikta Attar, Wastewater Treatment Division • David Cooper, Resident Engineer Services
  • 4. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Mount Vernon District, Tax Map No. 108-3 Area 2
  • 5. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Installation of Class I Stone Along Hogge Run
  • 6. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Placement of Coir Matting in Area 3
  • 7. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Armoring Embankment Turn in Area 2
  • 8. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Severe Undermining of North Side Embankment
  • 9. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Imbricated Stone Wall Development
  • 10. Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Pohick Stream Stabilization Phase II – Areas 2 & 3 Rock Weir Tie-in to the South Embankment
  • 11. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Finished Rock Vein
  • 12. Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Regrading and Coir Matting Placement in South Side of Area 2
  • 13. Before After Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Pohick Stream Stabilization Phase II – Areas 2 & 3 Completed Planting Work
  • 14. Additional Information For additional Information, please call www.fairfaxcounty.gov/dpwes Pohick Stream Stabilization Phase II – Areas 2 & 3 Capital Facilities/Wastewater Design and Construction Division/Treatment Branch Matthew Kaiser, Public Information Officer 703-324-8455, TTY 711 Matthew.Kaiser@fairfaxcounty.gov