pohick creek tributary stream restoration project

A Fairfax County, VA, publication

Department of Public Works and Environmental Services

Working for You!

Pohick Creek Tributary Stream RestorationCN13125083SD-000031-114Braddock District

June 5, 2014

Pohick Creek Tributary Stream Restoration

Utilities Design & Construction Division- Transportation and Stormwater Construction Branch

Project DetailsPohick Creek Tributary Stream Restoration


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



Guinea Road & Harford Lane (Burke, VA) – Tax Map No. 69-4

Project Site



Existing Condition - Stream

Very steep, highly eroded stream banks



Existing Condition – Stream

Head cut in the stream channel



Construction – Stream

Grade control rock structure

Reinforced bed material

Excavated existing channel



Construction – Pond

Accumulated pond debris and silt were removed



Completed – Stream



Completed – Pond

Before After



Additional Information

For additional Information, please call

www.fairfaxcounty.gov/dpwes



Irene Haske, Public Information Officer703-324-5821, TTY 711

[email protected]

pohick creek tributary stream restoration project

News & Politics