The document summarizes a stream restoration project in Fairfax County, Virginia. The project involved restoring 1,364 feet of stream, stabilizing outfalls, replacing a failed stormwater pond with a step pool conveyance system, and adding plantings. The project was substantially completed in November 2018. It is estimated to remove 154 pounds of phosphorus, 407 pounds of nitrogen, and 27 tons of sediment from waterways annually.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Lake Martin Tributary @ Foxwood HOA Stream Restoration
(DF82-0014)
Contract No. CN16125167
Task Order No. 10
Project No. SD-000031-148
Sully District
Tax Map No. 46-2
December 14, 2018

2. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Lake Martin Tributary @ Foxwood HOA Stream
Restoration (DF82-0014)

3. Project Details
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Description:
The Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014) project was substantially
completed on November 8, 2018. This stream restoration is located in Oakton between Norwegian Mill Court
and Fox Mill Road within the Difficult Run Watershed. The project involved restoration of approximately 1,364
feet of stream, stabilized several outfalls, replaced a failed stormwater pond with a step pool conveyance
system, added native forest and riparian plantings and removed non-native invasive species. The step pool
conveyance system combined with the stream restoration removes 154 pounds of total phosphorous, 407
pounds of total nitrogen and 27 tons of sediment per year.
Project Overview:
• Stabilized three eroding outfalls.
• Restored 1,364 feet of stream.
• Replaced a failed stormwater pond with a step pool conveyance system.
• Installed native forest and riparian plantings.
Project Team:
• Project Manager – Charles Smith, Stormwater Planning Division
• Construction Manager – Dave Becker, Utilities Design and Construction Division (UDCD)
• Construction Inspector – Bharat Khanal, UDCD
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

4. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Trickle ditch
Tax Map No. 46-2
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)
Project Site

5. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Pre-Existing Conditions
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

6. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Pre-Existing Conditions
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

7. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
During Construction
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

8. Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Post Construction
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

9. Before After
Outfall at Norwegian Mill Court
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

10. Before After
Downstream End Near Fox Mill Road
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)

11. Additional Information
For additional Information, please call
www.fairfaxcounty.gov/publicworks
Matthew Kaiser, Public Information Officer
703-324-8455, TTY 711
Matthew.Kaiser@fairfaxcounty.gov
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch
Lake Martin Tributary @ Foxwood HOA Stream Restoration (DF82-0014)