Pohick Creek Tributary Stream Restoration Project

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Pohick Creek Tributary Stream Restoration
CN13125083
SD-000031-114
Braddock District
June 5, 2014

2. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch

3. Project Details
Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Description:
The Pohick Creek Tributary project was substantially completed on May 22, 2014. The project consisted of restoring
approximately 1,314 linear feet of highly degraded tributary of Pohick Creek using natural channel design techniques.
Project Overview:
• Establishment of new and stable channel geometry
• Reconnection of the channel with its floodplain by raising the stream bed
• Placement of a reinforced bed to prevent future incision
• Stabilization of the stream bed and banks, reduction of erosion, and improvement of habitats through the
installation of various in-stream structures to include: Log Sills, Rock Sills, Boulder Riffles, Rock Step Pools,
Modified Cross-Vanes
• Maintenance of existing stormwater management pond (clean & repair)
• Restoration of the site with native trees, herbaceous plants, and grasses to promote natural reforestation.
• Reduction of 1,736 lbs. of total nitrogen per year, 129 lbs. of total phosphorus per year, and 123 tons of sediment
per year leading to the Pohick Creek.
Project Team:
• Stormwater Planning Division – Sajan Pokharel
• Utilities Design and Construction Division – Yudhie Brownson, Jeffrey Bartlett, Mannan Qureshi
• Urban Forestry Management Division – Hugh Whitehead
• Avon Corporation – Kurt Lorenz, Mike Avon
• Wetland Studies and Solutions, Inc. – John Connelly, Nathan Staley, Brian Chromey

4. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Guinea Road & Harford Lane (Burke, VA) – Tax Map No. 69-4
Project Site

5. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Existing Condition - Stream
Very steep,
highly eroded
stream banks

6. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Existing Condition – Stream
Head cut in the stream
channel

7. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Construction – Stream
Grade control rock structure
Reinforced bed material
Excavated existing channel

8. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Construction – Pond
Accumulated pond debris and silt were removed

9. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Completed – Stream

10. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Completed – Stream

11. Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Completed – Pond

12. Before After
Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch

13. Additional Information
For additional Information, please call
www.fairfaxcounty.gov/dpwes
Pohick Creek Tributary Stream Restoration
Utilities Design & Construction Division- Transportation and Stormwater Construction Branch
Irene Haske, Public Information Officer
703-324-5821, TTY 711
SWPDmail@fairfaxcounty.gov