Restore up to 1,200 feet of stream within the wooded dry pond footprint. Stabilize streambed and banks Reduce sediment and nutrient inputs into stream Improve habitat Reduce long-term maintenance of pond Consider water quality enhancements and a litter collection system in the open pond area Maintain close coordination with stakeholders

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
October 2018
Rocky Run Tributary at Dulles Access Road
Stream Restoration Project

2. Stormwater Planning Division
Program Drivers
Project Goals
Existing Conditions
Next steps
Contact information
2
Agenda

3. Stormwater Planning Division 3
Stormwater Program Drivers
• Municipal Separate Storm Sewer System Permit (MS-4)
• Chesapeake Bay Total Maximum Daily Loads (TMDL)
– Regulates amount of sediment, nitrogen and phosphorous Fairfax County
contributes to the Chesapeake Bay in stormwater runoff
• Other Local TMDLs
• Maintenance of Existing Facilities
• Dam Regulations
• Public Safety/Emergency Response
– Flooding
– Snow Removal

4. Stormwater Planning Division
Project Location
4

5. Rocky Run and Regional Stormwater Pond
5
Pulte/McLean 100
Regional Stormwater Pond (D-67) Aerial Photo: 2017

6. Rocky Run and Regional Stormwater Pond
6
Drainage Area: 312 Acres Aerial Photo: 2017

7. Rocky Run and Regional Stormwater Pond
7
Floodplain and Storm Drainage Easements

8. Project Goals
• Restore up to 1,200 feet of stream within the wooded dry pond
footprint.
– Stabilize streambed and banks
– Reduce sediment and nutrient inputs into stream
– Improve habitat
• Reduce long-term maintenance of pond
• Consider water quality enhancements and a litter collection
system in the open pond area
• Maintain close coordination with stakeholders
8

9. Stormwater Planning Division 9
Existing
Conditions

10. Stormwater Planning Division 10
Existing Conditions
May 11, 2018

11. Stormwater Planning Division 11
Existing Conditions
May 11, 2018

12. Stormwater Planning Division 12
Existing Conditions
December 20, 2016

13. Stormwater Planning Division 13
Existing Conditions
December 20, 2016

14. Stormwater Planning Division 14
Existing Conditions
December 20, 2016

15. Stormwater Planning Division 15
Existing Conditions
December 20, 2016

16. Stormwater Planning Division 16
Existing Conditions
May 11, 2018

17. Stormwater Planning Division 17
Existing Conditions
December 20, 2016

18. Stormwater Planning Division 18
Existing Conditions
December 20, 2016

19. Stormwater Planning Division 19
Existing Conditions

20. Stormwater Planning Division 20
Example Stream
Restoration Projects

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

22. Stormwater Planning Division 22
Construction
Track truck
Excavator

23. Stormwater Planning Division 23
Construction

24. Stormwater Planning Division 24
Before and After Examples
Before One year after construction.
Bridal Path

25. Stormwater Planning Division 25
Dead Run Stream Restoration at Dominican Retreat
March 2016 September 2017

26. Dead Run Stream Restoration at Dominican Retreat
26
First Growing Season - 2018

27. Stormwater Planning Division 27
Dead Run Stream Restoration at Dominican Retreat
March 2016 July 2017

28. Dead Run Stream Restoration at Dominican Retreat
28
First Growing Season - 2018

29. Tentative Schedule
• Design Start – November 2018
• Pre-Concept Design– May 2019
• Project Kickoff/Pre-Design Review Meeting with Community –
May 2019
• Concept Design – October 2019
• 65% Design – December 2019
• Final Design – March 2020
• Construction – Subject to future funding
29

30. Stormwater Planning Division 30
Contact Information
Contact Information
Joe Riley-Ryan, Project Manager
703-324-5613
Joseph.Riley-Ryan@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