Public Works and Environmental Services Alert:
The Herndon Crossing 1724DP pond retrofit project was authorized for design for fiscal year 2025 under the Stormwater CIP. The basin was originally designed as an extended detention dry pond but has been functioning as a wet pond due to clogging issues, sediment deposition, and water retention. The County had been maintaining this facility for years by removing debris, clearing algae, and dewatering but it still experiences maintenance challenges.
Nonfunctional BMP plate, and blockage at low flow trash rack
Overgrown vegetation on gabion wall
Sluice gate damage
Herndon Crossing 1724DP is a basin retrofit project located in the Dranesville Magisterial District and within the Sugarland Run watershed in the Town of Herndon. The existing extended detention basin has been functioning as a wet pond due to clogging, sediment deposition, and water retention. Based on community feedback and operational constraints, the County is evaluating retrofit alternatives to improve the pond performance while maintaining the facility as a wet pond.
The primary goals of this project are to:
The project site is bound by Winterwood Court to the south, Hiddenbrook Drive to the west, Bayou Court and Fantasia Court to the north, and Folly Lick Branch Trail to the east.
Design Phase