Indian Run at Indian Run Court Stream Restoration

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
SD-000031-146 Indian Run at Indian Run Court
Stream Restoration Project
March 19, 2015

2. Stormwater Planning Division
Agenda
• Program Drivers
• Watershed Overview
• Project Introduction
• Exiting Conditions
• Project Goal
• Typical Structures Used
• Next Steps
• Contact Information
2

3. Stormwater Planning Division
Program Drivers
• Stream Restoration: Return physical and ecological functions of the stream
to the maximum extent possible
• Erosion Control
• Public Safety
• Improve Water Quality
• State and Federal Regulations
– Chesapeake Bay Agreement
• Partnering states (VA, MD, DC, DE, PA, WV) signed the agreement to restore the bay health and ecosystem
– Executive Order
• President Obama recognized bay as national treasure (May, 2009) and calls to restore the bay
– Municipal Separate Storm Sewer Permit (MS-4)
• Easements rights and responsibility to maintain/upgrade
– Total Maximum Daily Loads (TMDL)
• Regulates amounts of pollutants in waterways
Implementation Strategies (Fairfax County - 400 Sq. Mi.):
• Watershed Management Plan
– Developed for 30 watersheds
– Priority areas for retrofits/restoration
3

4. Stormwater Planning Division
Watershed Overview
4
Project
Location

5. Stormwater Planning Division
Watershed Overview
5

6. Stormwater Planning Division 6

7. Stormwater Planning Division 7

8. Stormwater Planning Division 8

9. Stormwater Planning Division
Project Introduction
9

10. Stormwater Planning Division
Existing Conditions – Reach 1
10
Eroded
Streambank

11. Stormwater Planning Division
Existing Conditions – Reach 1
11
Exposed Sanitary
Sewer Line
Undermined
Bridge

12. Stormwater Planning Division
Existing Conditions between Reach 1 and 2
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13. Stormwater Planning Division
Existing Conditions – Tributary
13
Head
Cut
Fallen
Tree

14. Stormwater Planning Division
Existing Conditions – Reach 2
14
Eroded
Streambank
Exposed
Tree Roots
Fallen
Trees

15. Stormwater Planning Division
Existing Conditions – Reach 2
15
Exposed Tree Root
and Head Cut

16. Stormwater Planning Division
Existing Conditions – Reach 2
16
Head
Cut
Eroded
Streambank
Exposed
Tree Roots

17. Stormwater Planning Division
Existing Conditions – Reach 2
17
Undercutting
of Streambank
Exposed
Utility Line
Exposed
Tree Roots

18. Stormwater Planning Division
Existing Conditions – Reach 2
18
Undercutting
of Streambank
Undermined
Bridge
Exposed
Tree Roots
Fallen
Tree

19. Stormwater Planning Division
Existing Conditions – Beyond Reach 2
19
Undercutting
of Streambank
Exposed
Tree Roots
Fallen
Trees

20. Stormwater Planning Division
Existing Conditions – Outside of Project Limit
20
Debris Build Up

21. Stormwater Planning Division
Project Goal
Restore Approximately 2,200 Linear Feet of Stream on
Park Authority Land
– Stabilize Streambed and Banks
– Improve Habitat
• Plant Native Trees, Shrubs and Vegetation
– Reconnect the Floodplain
– Protecting Structures
• Railroad Embankment
• Pedestrian Bridge
• Utility lines
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22. Stormwater Planning Division
Current Project Status
– Design Contract with WSSI
– Survey
• Site and stream
• Trees
– 12” or larger diameter
– Health
– Tree Type
• Structure
– Archeological Survey
– Iterative Concept Design
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23. Stormwater Planning Division
Typical Structures Used – Cross Vanes
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24. Stormwater Planning Division
Typical Structures Used – Root Wads
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25. Stormwater Planning Division
Typical Structures Used – Boulder Toe
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26. Stormwater Planning Division
Before and After Stream Restoration
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27. Stormwater Planning Division
Next Steps – Schedule
• Concept Design – October, 2015
• Preliminary Design – January, 2016
• Final Design – April, 2016
• Construction Start – When construction
funding becomes available
• Your participation in design
• 2 members to represent all of the HOAs
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28. Additional Information
For additional information, please contact
www.fairfaxcounty.gov/dpwes
Stormwater Planning Division 28
Jasdeep Saini
(703) 324-5675
jasdeep.saini@fairfaxcounty.gov