Staff of the Stormwater Planning Division worked closely with neighbors and staff from the Reston Association to create a plan to restore this highly degraded stream with many exposed sewer pipes between South Lakes Drive, Wakerobin Lane, Cedar Cove Court and Lake Audubon.
Surveys were done to ensure that the endangered Small Whorled Pogonia (not found) and the Northern Long-Eared Bat (not found) would not be impacted by the project.
Surveys determined the condition of the stream channel, soils, tree cover and documented the plant species and the condition of the plant communities on site.
The design has avoided impacts to private property and tree canopy to the greatest extent possible.
The project will restore 750 linear feet of the stream channel to prevent erosion, convey stormwater, protect infrastructure, improve soils and support native vegetation.
The primary goals of the restoration are:
Improve water quality by removing Nitrogen, Phosphorous and Total Suspended Solids
Protect the infrastructure associated with the sanitary sewer system
Remove invasive vegetation in the restoration site
Reforest the area with native vegetation after construction
Improve wildlife habitat
The restoration is between South Lakes Drive, Wakerobin Lane, Cedar Cove Court and Lake Audubon.
Protect surface waters by preventing sediment from flowing into Lake Audubon
Protect county infrastructure and private property
Restore native vegetation
Construction started on October 10, 2019
Ongoing stream assessment
It is estimated that the project will be complete in one year.
What to expect
Construction access and deliveries will enter the site through Cedar Cove Court. Residents should expect periodic deliveries of material using dump trucks to the site starting after 7 a.m. on weekdays. Note that at some periods during construction, work may occur on weekends. Deliveries on those days will be made after 9 a.m.
Project cost and funding source
Construction of the Snakeden Branch at Lake Audubon Stream Restoration is estimated to cost about $1,000,000. Stormwater projects are funded through the county Stormwater Service District.
Presentations to the Community
For more information please email Project Manager Meghan Fellows, Stormwater Planning Division, Department of Public Works and Environmental Services, or call 703-324-5807, TTY 711.