WASHINGTON — A raging torrent of muddy water overtopped the banks of Cameron Run in early September 2011, stranding drivers, closing the Capital Beltway and inundating dozens of Huntington homes.
Nearly six years later, the process of building a levee to stave off future floodwaters is underway.
A groundbreaking ceremony for the Huntington Levee will be held 10 a.m. Thursday in Huntington Park, between Cameron Run and a Fairfax County neighborhood that has been flooded three times since 2003.
Construction on the estimated $40 million project began in February and is scheduled to wrap up in 2019. Preparation of the work site, including installation of erosion controls, was completed this month.
Excavation for the pumping station, which will be located on the east side of the levee, is expected to begin in April.
The construction of a new levee and pumping station was approved through a bond referendum in November 2012. Residents and county leaders hope the new levee will protect about 160 houses built in a small floodplain near the Potomac River.
The homes built prior to modern zoning regulations in the small, low-lying area are susceptible to both freshwater flash flooding and coastal river flooding.
The earthen levee will be 2,800 feet long and 6 to 11 feet tall. A 4-foot-high concrete wall will run along the spine of the berm, and trails will be added near and atop the embankment.
The most recent flash flooding event occurred in 2011 as the remains of Tropical Storm Lee dropped historic rainfall in parts of Fairfax County and Alexandria.