The Pike Branch Tributary stream restoration project was presented to the community.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Pike Branch Tributary
at Ridgeview Park
Stream Restoration Project
October 2015

2. Stormwater Planning Division
Agenda
Social Goals
Program Drivers
Watershed
Environmental Benefits
Existing Conditions
Next steps
Contact information
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3. Stormwater Planning Division
Social Goals
1. Maintain open dialog and share information.
2. Coordinate with all the stakeholders and the community.
3. Build partnerships with local organizations such as
homeowners associations.
4. Design Team – Stantec Consulting Services, Park Authority,
Utilities Design and Construction Division, and Stormwater
Planning Division.
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4. Stormwater Planning Division
Stormwater Program Drivers
• Municipal Separate Storm Sewer Permit (MS-4)
• Chesapeake Bay Total Maximum Daily Loads (TMDL)
– Regulates amount of pollutants in waterways
• Other Local TMDLs
• Maintenance of Existing Facilities
• Dam Regulations
• Public Safety /Emergency Response
– Flooding
– Snow Removal
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5. Cameron Run Watershed
• 33 sq. mi. in Fairfax County.
• 95% of watershed is
developed with a majority
of development occurring
before implementation of
modern stormwater
facilities.
• Cameron Run discharges
into the Potomac River.
• Project CA9203
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http://www.fairfaxcounty.gov/dpwes/watersheds/cameronrun.htm
Stormwater Planning Division

6. Environmental Benefits
Improve watershed conditions and reduce downstream
impacts through….
Controlling quantity
Mitigate flooding where possible
Controlling velocity
Reduce erosion
Protect infrastructure
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7. Stormwater Planning Division
Project Goals
Restore up to 3,300 feet of stream in Ridgeview Park and
surrounding properties
Stabilize streambed and banks
Reduces sediment and nutrient inputs into stream system
Improve habitat
Maintain close coordination with stakeholders
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8. Project Area Limits
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Fort Hill Dr.
Ridge View Dr.
Duvawn St.
Red Wood Ln.
Approximate limits of disturbance
Stormwater Planning Division

9. Stormwater Planning Division
Existing Conditions
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10. Stormwater Planning Division
Existing Bank Conditions
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11. 11
Existing Bank Conditions
Erosion undermines tree. Tree becomes unstable and leans.
Stormwater Planning Division

12. 12
The tree falls down once roots are unable to compensate for the lack of support.
Existing Bank Conditions
Stormwater Planning Division

13. 13
Existing Bank Conditions
April 15, 2015 September 22, 2015
Stormwater Planning Division

14. Existing Stormwater Infrastructure
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15. Existing Utility Infrastructure
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Sanitary sewer pipe Base of support pole for
overhead power lines
Stormwater Planning Division

16. Stormwater Planning Division
Typical Structures Used – Plunge Pool
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17. Stormwater Planning Division
Typical Structures Used – Cross Vanes
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18. Stormwater Planning Division
Typical Structures Used – Root Wads
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19. Stormwater Planning Division
Video of Typical Structures Used
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20. Stormwater Planning Division
Construction Example
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21. Stormwater Planning Division
Construction Example
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22. Stormwater Planning Division
Construction Example
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23. Stormwater Planning Division
Growing Season Following Construction Completion
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24. Stormwater Planning Division
One Year After Construction Completion
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25. Stormwater Planning Division
Three Years After Construction Completion
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26. 26
Before and After Examples
2013 2014
Stormwater Planning Division

27. Before and After Examples
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Banks Park
April 2012 May 2015
Stormwater Planning Division

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Before and After Examples
Big Rocky Run II
April 2011 September 2015
Stormwater Planning Division

29. Stormwater Planning Division 29
Next Steps – Schedule
• Complete stream assessment – December 2015
• Conceptual design – April 2016
• Community meeting with concept design – May 2016

30. Online Resources
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Stormwater Planning Division Website
http://www.fairfaxcounty.gov/dpwes/stormwater/
Fairfax County Watershed Planning
http://www.fairfaxcounty.gov/nvswcd/newsletter/planning.htm
Cameron Run Watershed Plan
http://www.fairfaxcounty.gov/dpwes/watersheds/cameronrun.htm
EPA Water Quality Laws & Regulations
http://www.epa.gov/water/laws.html
Stormwater Planning Division

31. Stormwater Planning Division
Contact Information
Contact Information
Design
Fred Wilkins – Project Manager
703-324-5189
Fred.Wilkins@fairfaxcounty.gov
Fairfax County Stormwater Planning Division
703-324-5500 TTY 711
12000 Government Center Parkway
Suite 449
Fairfax, Virginia 22035
www.fairfaxcounty.gov/publicworks/stormwater
To request this information in an alternate format call 703-324-5500, TTY 711
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