The Woodglen Lake Dredging & Restoration project in Fairfax County, VA removed over 40,000 cubic yards of sediment from Woodglen Lake. The project improved maintenance access and installed a sediment forebay to simplify future dredging. Dredged sediment was disposed of innovatively at the County-owned I-95 Landfill Complex. Stream restoration and landscaping around the lake also enhanced the area. The project reduces annual sediment and nutrient loads in downstream waters.

1. A Fairfax County, VA, publication
Department of Public Works and Environmental Services
Working for You!
Woodglen Lake Dredging and Restoration
Contract Number CN14125106
Project Number SD-000033-021
Braddock District
March 25, 2016

2. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch

3. Project Details
Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Description:
The Woodglen Lake Dredging & Restoration project was substantially completed on November 18, 2015. The
project consisted of removing sediment from the lake; stream restoration above the lake, improving an existing
access road to the lake, landscape planting and trail modifications around the lake, constructing a staging area
and sediment forebay to simplify future dredging operations, and modifications and repairs for the lake’s
principal spillway. Additionally, this project demonstrated the feasibility of spreading dredged sediment as
topsoil at the County-Owned I-95 Landfill Complex rather than paying disposal fees to dump this material in other
landfills – a significant cost saving to the County.
Project Overview:
• Remove sediment from a stormwater management lake constructed in 1981, in the Braddock District of
Fairfax County, Virginia
• Worked with the I-95 Landfill Complex staff to provide an innovative sediment disposal method
• Worked with the Fairfax County Park Authority staff to improve the landscaping and public access to the lake
Project Team:
• Stormwater Planning Division - Dipmani Kumar
• I-95 Landfill Complex – John Kellas
• Maintenance & Stormwater Management Division - Don Lacquement
• Fairfax County Park Authority - Ed. Richardson
• Land Acquisition Division - Carol Kresge
• Utilities Design and Construction Division (UDCD) - James Horstman
• Project Inspector, UDCD - Paul Thaler
• Survey Analyst, UDCD - Gregory Harper

4. Woodglen Lake Dredging and Restoration
Project Benefits
• Removed over 40,000 CY of sediment
• Facilitated future maintenance dredging operations by:
• Providing a 9,000 CY sediment forebay
• Improving the existing access road
• Providing truck staging areas
• Provided improvements and repairs for the principal spillway riser
• Installed fish habitat structures within the lake
• Provides the following annual (estimated ) reductions in the downstream
sediment and nutrient loadings:
• Total Suspended Solids (TSS) 14.6 tons/year
• Total Nitrogen (TN) 1,075 lbs/year
• Total Phosphorus (TP) 67 lbs/year

5. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Tax Map 68-3 and 77-1
PROJECT LOCATION

6. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
The Lake After Draining

7. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Sediment Near the Forebay – To Be Removed

8. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Sediment Being Loaded

9. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Forebay Separation Dike

10. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Modifications & Repairs – Principal Spillway Riser

11. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Stream Restoration Work – Lake Inlet

12. Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Planting

13. Additional Information
For additional Information, please call
www.fairfaxcounty.gov/dpwes
Woodglen Lake Dredging and Restoration
Capital Facilities / Utilities Design and Construction Division / Transportation and Stormwater Construction Branch
Irene Haske, Public Information Officer
703-324-5821, TTY 711
SWPDmail@fairfaxcounty.gov