Beginning March 17, the Cross County Trail in Pohick Stream Valley Park between Cliff Forest Drive and Wadebrook Terrace will be temporarily closed while the Department of Public Works and Environmental Services undertakes a major rehabilitation project on the Pohick Interceptor. This project involves the renewal of approximately 6,500 linear feet of large-diameter sanitary sewer pipe and associated maintenance hole structures to ensure continued safe and reliable wastewater service for Fairfax County residents.

During the construction phase, there will be an initial three-month closure of the Cross County Trail within the project area. Once work at the northern end of the project area is complete, a detour along Pohick Road will be in effect for approximately 12 to 15 months, while the remaining rehabilitation is completed. Depending on weather conditions, construction is expected to conclude in winter 2026. Trail closure and project signs will be posted in Pohick Stream Valley Park to guide residents.

The rehabilitation work, utilizing a trenchless Cured-in-Place Pipe (CIPP) method, is a cost-effective and minimally invasive approach that extends the service life of the infrastructure by approximately 50 years. In addition to proactively maintaining the sewer system, this project will reduce the risk of emergency repairs, protect public health and minimize environmental impacts.

For alternate park locations and trails to explore during this temporary closure, residents are encouraged to use the Park Authority’s Park Amenity Locator and Trail Buddy tools. Project updates and additional information can be found online by visiting the Pohick Interceptor Rehabilitation project webpage.