Mordecai Island Ecosystem Restoration, Breakwater Construction

The U.S. Army Corps of Engineers Philadelphia District is seeking information from potential contractors for the construction of a 3,000 linear foot rubble mound breakwater to mitigate erosion along Mordecai Island's northwest side. The project involves in-water construction and requires experience with similar projects in environmentally sensitive, dynamic marine environments. The estimated magnitude of the project is between $1,000,000 and $5,000,000, and the estimated period of performance is 1 year. Key aspects of the project include: • In-water construction of a rubble mound breakwater • Mitigation of erosion along the island associated with nearby navigation • Use of R-6 stone and geocomposite materials • Construction of a 3,000 linear foot breakwater with a crest width of 3 feet and 2H:1V side slopes • Placement of riprap stone within pre-determined elevation limits • Surveys to confirm acceptability of the construction