A facial component of a retaining wall collapsed at Potomac Town Center on the night of April 20, 2017. This is near the main entrance to the center along River Walk Way, near the Sport & Health. “This is largely an aesthetic issue. The retaining wall system itself appears to be intact. The concrete wall panels were installed on the face of the retaining wall to provide a pleasing appearance to the wall face,” said Prince William County Department of Development Services Director Wade Hugh.
To facilitate repairs, DDS staff met with Designer of Record (Keith Moser, P.E), the General Contractor (Hensel Phelps) and a representative from the company who fabricated the wall panels. As part of the site visit, they inspected the entire wall, which consists of 135 panels. There were several locations, apart from where the failure occurred, that showed signs of movement. To address the situation, the team agreed to a three phased approach:
- Install temporary measures to stabilize and secure the collapsed wall section. Jersey barriers will be installed at the top of the wall to “tie off” the wall sections to the barriers. This will prevent the wall sections from falling onto the sidewalk and travel way.
- Close the parking lot areas along the entire length of the wall. This is being done to allow the installation of the jersey barriers. Close River Walk Way (the roadway running parallel to the wall) in both directions.
- Construct the permanent repairs to the wall. Plans will be submitted to obtain a permit to repair the wall.
Closures are expected to last for two weeks; stores and restaurants at Stonebridge will remain open for business during this time. Look for updates on New Woodbridge as repairs progress.