The Lake Barton dredging, restoration, and riser modification project was completed on December 29, 2021, aimed at improving water quality by removing approximately 19,100 cubic yards of sediment and constructing new sediment forebays and riser modifications. The project led to significant reductions in pollutants, including 47 lbs. of total phosphorus and 743 lbs. of total nitrogen annually, with a total construction cost of $1,996,000. The project was managed by the Fairfax County Department of Public Works and Environmental Services, involving multiple team members and a contracted construction company.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
LAKE BARTON DREDGING, RESTORATION AND RISER MODIFICATION
PROJECT
Project No. SD-000033-022
Braddock District
Tax Map No. 77-2
April 5, 2022

2. Lake Barton Dredging, Restoration, and Riser Modification
Braddock District, Tax Map No. 77-2
PROJECT LOCATION
N
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 2

3. Lake Barton Dredging, Restoration, and Riser Modification
Project Detail
Description:
The Lake Barton Dredging, Restoration, and Riser Modification project was substantially completed on December
29, 2021. The project is located within the Pohick Creek watershed. The project consisted of dredging and removal
of approximately 19,100 cubic yards of sediment to restore the sediment trapping capacity and improve water
quality. The project also included construction of new sediment forebays, in-lake haul roads, and riser modifications
(new mid-level sluice gate and cold-water intake) to facilitate future maintenance, stabilize the shoreline, and
improve downstream water quality. Fish habitat was also added within the lake.
Benefits (removal rates in pounds per year):
• 47 lbs. of total Phosphorus
• 743 lbs. of total Nitrogen
• 20,328 lbs. of Total Suspended Solids (TSS)
Project Construction Cost: $1,996,000
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 3

4. Lake Barton Dredging, Restoration, and Riser Modification
Project Team
Department of Public Works and Environmental Services
Utilities Design and Construction Division
• Yousef Rayyan, Construction Manager
• Yagya Bhandari, Construction Inspector
• Jean Swim, Engineering Technician
Maintenance and Stormwater Management Division
• Aaron George, Project Manager
• Ganesh Thapa, Project Manager
• Paul Reynolds, Project Engineer
Land Development Services
• Ebrahim Nour, Inspector
Design Consultant
• Gannett Fleming
Construction Contractor
• Avon Corporation
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 4

5. Lake Barton Dredging, Restoration, and Riser Modification
View of Lake Barton Project Site During Construction
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 5

6. Lake Barton Dredging, Restoration, and Riser Modification
Sediment Forebays
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 6

7. Lake Barton Dredging, Restoration, and Riser Modification
Riser Modifications
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 7

8. Lake Barton Dredging, Restoration, and Riser Modification
Wave Berm and Shoreline Restoration
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 8

9. Lake Barton Dredging, Restoration, and Riser Modification
Fish Habitat
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 9

10. Lake Barton Dredging, Restoration, and Riser Modification
During Construction
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 10

11. Lake Barton Dredging, Restoration, and Riser Modification
Post Construction
Capital Facilities/Utilities Design and Construction Division/ Stormwater Construction Branch 11

12. Additional Information
For additional information, please contact
www.fairfaxcounty.gov/publicworks
Lake Barton Dredging, Restoration, and Riser Modification
Sharon North in the
DPWES Public Information Office
703-324-5500, TTY 711
Sharon.North@fairfaxcounty.gov
Capital Facilities/Utilities Design and Construction Division/Stormwater Construction Branch 12