Restore approximately 3,500 feet of stream on Lake Werowance Inc. and privately owned properties. Stabilize streambed and banks Reduce sediment and nutrient inputs into stream system Improve habitat Maintain close coordination with stakeholders Enhance water quality and biological diversity through the enhancements of existing wetland features within the former lakebed

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
October 2019
Piney Run at Lake Werowance
Stream Restoration Project

2. Stormwater Planning
Project Goals
Project Update
Proposed Conditions Example Graphics
Structure Examples
Site Walk with Stormwater Planning Division and Stantec, Inc.
Contact Information
2
Agenda

3. Stormwater Planning Division 3
Project Goals
• Restore approximately 3,500 feet of stream on Lake
Werowance Inc. and privately owned properties.
 Stabilize streambed and banks
Reduce sediment and nutrient inputs into stream
system
 Improve habitat
 Maintain close coordination with stakeholders
 Enhance water quality and biological diversity through
the enhancements of existing wetland features within
the former lakebed

4. Stormwater Planning Division 4
Project Update
• The project is funded through the County Stormwater
Service District tax.
• The project is funded for design which is expected to be
completed by March 2020.
• Construction will begin summer 2020.
– Construction is estimated to be approximately 18
months.
– The construction estimate is $3.5 million.

5. Stormwater Planning Division 5
Proposed Conditions
Example Graphics

6. Reference reach: Jefferies Branch (Loudoun County, Virginia)
• Geomorphologic ratios of this reference reach are the “blueprint” for the proposed design of
Piney Run

7. Urban reference reach: Neabsco Creek (Dale City, Virginia)
• Geomorphologic ratios of this urban reference reach are the “blueprint” for the proposed
design of Piney Run

8. Reference reach: Norton Prong (Spotsylvania County, Virginia)
• Geomorphologic ratios of this reference reach are the “blueprint” for the proposed design of
Piney Run

9. Project example: Goose Creek/Bolling Branch (Fauquier County, Virginia)
• Priority 1 restoration of Bolling Branch, 2 years after construction

10. October 9, 2019
•Piney Run at Lake Werowance
Structure Examples

11. Structure example: Floodplain Wood Assemblage

12. Structure example: Brush Run

13. Structure example: Constructed Riffle with Log Rollers

14. Structure example: Stream Bank with Log Rollers

15. Structure example: Toe Log

16. Structure example: Log Vane with Root Wad

17. Structure example: Toe Wood (with coir wrapped lifts)

18. Structure example: Log Vane with Root Wad & Toe Wood (with coir wrapped lifts)

19. Structure example: Riffle Installation

20. Stormwater Planning Division 20
Construction
Examples

21. Stormwater Planning Division
Construction Entrance Examples
21
Access road and tree protection area
Stockpile area
Construction entrance

22. Stormwater Planning Division
Equipment Examples
22
Track truck
Excavator

23. Stormwater Planning Division
Construction Example
23

24. Stormwater Planning Division
Growing Season Following Construction Completion
24

25. Stormwater Planning Division
One Year After Construction Completion
25

26. Stormwater Planning Division
Three Years After Construction Completion
26

27. Before and After Examples
27
Banks Park
Before After
Stormwater Planning Division

28. 28
Before and After Examples
Big Rocky Run II
Before After
Stormwater Planning Division

29. 29
Before and After Examples
Rabbit Branch
Before
After
Stormwater Planning Division

30. Stormwater Planning Division
Before and After Examples
Before
30
After grading
(before tree and shrub planting)
Dead Run Segment 1

31. Stormwater Planning Division
Before and After Examples
31
Before After
Dead Run Segment 1

32. Stormwater Planning Division
Planting Example
Dead Run Segments 2/3
32

33. Stormwater Planning Division 33
Contact Information
Contact Information
Design
Matthew Meyers– Project Manager
703-324-5651
Matthew.Meyers@fairfaxcounty.gov
Fairfax County Stormwater Planning Division
703-324-5500 TTY 711
12000 Government Center Parkway
Suite 449
Fairfax, Virginia 22035
www.fairfaxcounty.gov/dpwes/stormwater
To request this information in an alternate format call 703-324-5500, TTY 711