9499 Beach Mill Road Channel Restoration Project

Dranesville District Project No. SD-000031-077

Description and Overview: The project is located at 9499 Beach Mill Road in Great Falls, VA. The project’s main goal is to address an incised and severely eroded channel. Furthermore, the improvements will bring the channel to a stable condition, prevent future flooding, and eliminate very steep channel banks (a potential safety hazard) for the property. Project Scope of Work:

• Removal and disposal of existing filter sacks (geo-tubes). • Import and placement of select fill and reinforced bedding material to raise the elevation of channel’s bottom. • Installation of various cross vanes structure, a series of cascading steep-pools structures, and a stone lined energy

dissipation basin by utilizing large imbricated rocks. • Vegetative planting was also incorporated throughout the project limits DPWES Project Team: • Project Manager – Ratna Pottumuthu • Construction Manager – Yudhie Brownson • Project Inspectors – Keith Ferrell • Survey Analyst, DPWES - Gregory Harper

Project Contractor – Environmental Quality Resources, LLC.

Project Details

9499 Beach Mill Road

Site Limits

9499 Beach Mill Road – Tax Map No. 008-1

Pre-existing Condition

Very steep, eroded slope with failing filter socks

Pre-existing Condition

Highly eroded and incised channel, creating a potential safety hazard

Raising the elevation of the existing channel bottom

Imported and compacted Select Fill

Newly installed modified cross vane structures

Series of cascading step-pools structure

Newly improved dissipation basin, cascading step-pools, rock walls, and stabilized channel slopes

For additional Information, please call Irene Haske, Public Information Officer

703-324-5821, TTY 711 SWPDmail@fairfaxcounty.gov

www.fairfaxcounty.gov/dpwes