The document summarizes plans by Fairfax County, VA to stabilize 350 linear feet of Turkeycock Creek near Brookside Office Park. The project will include installing a retaining wall along the creek bank next to the parking lot, in-stream stabilization features like step pools and rock sills, and native plantings. Easements will be secured in summer 2021, construction bidding will occur in fall 2021, and completion is scheduled for fall 2022. The project aims to mitigate further erosion and ensure bank stability along the creek.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
June 29, 2021
Turkeycock Creek
at Brookside Office Park
Stream Stabilization

2. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Brookside Office Park Meeting
2
• Project Location
• Existing Conditions
• Scope
• Retaining Wall
• In-Stream Stabilization
• Construction Access
• Easements
• Next Steps
• Q&A

3. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Project Location
3
Project
Location

4. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Existing Conditions
4
Looking upstream from office park parking lot
(January 2020)
Looking toward parking lot from stream
(June 2020)

5. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Existing Conditions
5
Looking upstream at culvert from stream
(January 2020)
Looking toward stream from existing infiltration trench
(June 2020)

6. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Project Scope
6
• Stabilize the stream, specifically
targeting the left bank adjacent to
the Brookside Office Park parking
lot, to mitigate further erosion and
ensure bank stability.
• Approximately 350 linear feet of
stream restoration.

7. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Retaining Wall
7
Precast
Concrete
Lagging
Soldier Pile

8. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Retaining Wall
8
Precast
Concrete
Lagging
Soldier Pile
Proposed Grade
on Stream side

9. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Retaining Wall
9
Safety Railing
(secured on to the top of the retaining wall)
Parking Lot Repair

10. Turkeycock Ck at Brookside Office Park
In-Stream Stabilization
10
Step Pools
Rock Sills
Retaining
Wall
Modified
Cross Vane

11. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Construction Access
11
Construction
Access
Staging and
Stockpile
Areas
Timber Stream
Crossing
Chain Link Temporary Fence

12. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Easements
12
• Floodplain and
Storm Drainage
Easement
• Grading Agreement
and Temporary
Construction
Easement

13. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Planting Plan
13
Itea Virginica (Sweetspire)
Acer Rubrum
(Red Maple)
Cercis Canadensis
(Eastern Redbud)

14. Turkeycock Ck at Brookside Office Park
WATERSHED PROJECTS IMPLEMENTATION BRANCH – SOUTH, STORMWATER PLANNING DIVISION
Next Steps and Anticipated Schedule
14
Easements Signed and Recorded June/July 2021
Finalize Plans Summer 2021
Plan Approvals and Permits Summer 2021
Advertise for Bid Fall 2021
Contractor Selected Fall 2021
Pardon Our Dust Meeting Spring 2022
Contractor Notice to Proceed Spring 2022
Construction Complete (6 months) Fall 2022

15. Additional Information
For additional information, please contact
www.fairfaxcounty.gov/publicworks
Turkeycock Ck at Brookside Office Park
Stormwater Planning Division
Joni Calmbacher, Project Manager
15
703-324-2183 TTY711
Joni.Calmbacher@fairfaxcounty.gov