A community meeting was held to discuss the stream restoration project.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Hunting Creek @ Fairchild
Stream Restoration Project
March 7, 2017

2. Stormwater Planning Division
Agenda
Program Drivers
Social Goals
Watershed
Project Goals
Restoration Plan
Existing Conditions
Example Stream Projects
Next steps
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3. Stormwater Planning Division
Stormwater Program Drivers
• Municipal Separate Storm Sewer System Permit (MS-4)
• Chesapeake Bay Total Maximum Daily Loads (TMDL)
– Regulates amount of pollutants in waterways (Nitrogen, Phosphorus, and
Total Suspended Solids )
• Local TMDLs (sediment, bacteria, and PCBs)
• Maintenance of existing facilities and infrastructure
• Dam monitoring and maintenance
• Public safety /emergency response
– Flooding
– Snow Removal
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4. Stormwater Planning Division
Project/Social Goals
1. Maintain open dialog and share information.
2. Coordinate with all stakeholders and the community.
3. Build partnerships with property owners and local
organizations, such as Homeowner and Community/Civic
Associations.
4. Design Team:
 Stormwater Planning Division
 Spring Bank Community Association
 Wetland Studies and Solutions
 Urban Forest Management Division
 Park Authority
 Wastewater Collection Division
 Utilities Design and Construction Division
 Fairfax County Public Schools
 Virginia Department of Transportation
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5. Belle Haven, Dogue & 4 Mile Watershed Management Plan
• Watershed
Characterization
– Water Quality Monitoring
– Land Use Change
– Pollutant Loading
– Physical Assessment
• Structural Projects
– 25 year plan
• Non-Structural Practices
– Policy and Regulations
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6. Watershed Management Plans
Improve watershed conditions and reduce downstream
impacts through….
Controlling quantity
Mitigate flooding where possible
Controlling velocity
Reduce erosion
Floodplain connectivity
Protect infrastructure
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7. Belle Haven Watershed Management Plan
• Belle Haven has a drainage
area just over 2.7 mi2
• 21 priority projects
identified in the watershed
management plan
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8. Stormwater Planning Division
Belle Haven Watershed Management Plan
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9. Stormwater Planning Division
Stream Restoration Project
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10. Stormwater Planning Division
Stream Restoration Project Goals
Restore approximately 1,200 feet of stormwater
outfalls - headwater streams to improve Water
Quality
Reduce sediment and nutrient inputs into stream
system
Stabilize streambed and banks
Provide bankfull bench/floodplain connectivity
Improve habitat
Protect Infrastructure (stormwater, sanitary, water,
etc.)
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11. Stormwater Planning Division
Channel Evolution
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Stage I

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13. Project Area
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14. Stormwater Planning Division
Existing Conditions – Reach 1
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15. Stormwater Planning Division
Existing Conditions – Reach 2
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16. Stormwater Planning Division
Existing Conditions – Reach 3
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17. Stormwater Planning Division
Reach 1 & 2 – Plan View
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18. Stormwater Planning Division
Reach 1 & 2 – Longitudinal Profile
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19. Stormwater Planning Division
Reach 3 – Plan View
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20. Stormwater Planning Division
Reach # - Longitudinal Profile
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21. Stormwater Planning Division
Typical Structures Used – Step Pools
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22. Stormwater Planning Division
Typical Structures – Step Pools
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23. Stormwater Planning Division
Typical Structures – Step Pool and Riffle
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24. Stormwater Planning Division
Typical Structure – Cascade
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25. Stormwater Planning Division
Construction Example
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26. Stormwater Planning Division
Construction Example
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27. Stormwater Planning Division
Construction Example
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28. Stormwater Planning Division
Construction Example
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29. Stormwater Planning Division
Construction Example
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30. Stormwater Planning Division
Construction Example
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31. Stormwater Planning Division
Growing Season Following Construction Completion
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32. Stormwater Planning Division
One Year After Construction Completion
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33. Stormwater Planning Division
Three Years After Construction Completion
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34. Before and After Examples
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Banks Park
Before After
Stormwater Planning Division

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Before and After Examples
Big Rocky Run II
Before After
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Before and After Examples
Rabbit Branch
Before
After
Stormwater Planning Division

37. Stormwater Planning Division
Landscaping
• Urban forester
coordination
• Total 210 trees surveyed
• 38 trees more than 12”
DBH are to be removed
– Some to be used onsite
as habitat features
• Each tree evaluated for
existing condition health,
habitat value, design
consideration and post-
construction health
• Native seed mix
• Native trees and shrubs
will be planted
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38. Stormwater Planning Division
What’s Next?
• Iterative design process
– 25, 65 percent, 95 percent and 100 percent design plan submittals with
internal reviews and site walks for field validation of design and tree
removal
• Coordination with community, county divisions and utility
companies
• Permits from U.S. Army Corps of Engineers, Department of
Environmental Quality, and VDOT
• Estimated final plan approval date: June, 2018
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39. Stormwater Planning Division
Construction Timeline
• The bidding process for construction can take approximately 3
months after final authorization of the final plan set
• Funding allocation for construction are determined by project
readiness and priorities for Fiscal Year 2020, and also Board of
Supervisors approved budget. Potential for fall/winter 2018
• Construction duration: approx. 10 - 12 months
• Post-Construction Transfer of Fairchild and Quander Property
from BOS to FCPA
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40. Stormwater Planning Division 40

41. Online Resources
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Stormwater Planning Division http://www.fairfaxcounty.gov/publicworks/stormwater/
Fairfax County Watershed Management Planning
http://www.fairfaxcounty.gov/nvswcd/newsletter/planning.htm
Belle Haven Watershed Management Plan
https://www.fairfaxcounty.gov/publicworks/sites/publicworks/files/assets/documents/pd
f/watersheds/belle-haven-dogue-creek-four-mile-run-watersheds-chapter-5a.pdf
EPA Water Quality Laws & Regulations
http://www.epa.gov/water/laws.html
Stormwater Planning Division

42. Stormwater Planning Division
Contact Information
Justin Pistore – Project Manager
703-324-5685 TTY 711
Justin.pistore@fairfaxcounty.gov
Fairfax County Stormwater Planning Division
703-324-5500 TTY 711
12000 Government Center Parkway
Fairfax, Virginia 22035
www.fairfaxcounty.gov/dpwes/stormwater
To request this information in an alternate format call 703-324-5500, TTY 711
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