Y--Rio Puerto Nuevo Upper Margarita Channel STA 46+00 to STA 56+00 and Stilling Basin, San Juan, Puerto Rico

Contract W912EP-14-B-0001, titled Rio Puerto Nuevo Upper Margarita Channel STA 46+00 to STA 56+00 and Stilling Basin, is a construction project located in San Juan, Puerto Rico. Awarded by the Department of Defense through the US Army Corps of Engineers, Jacksonville District Office, the project focuses on extensive water management infrastructure. Key construction elements include a 30 by 65 foot concrete U-framed stilling basin, a 100 foot concrete U-framed transition channel narrowing from 55 to 30 feet, a 115 foot concrete U-framed chute, and a 170 foot concrete U-framed channel. The scope also requires the installation of steel piling wingwalls, steel sheet piling grade control structures, anchor walls, and temporary and permanent steel sheet pile walls. Additional project requirements encompass comprehensive site preparation and environmental management. This includes the removal of an existing steel piling grade control structure, clearing and grubbing, demolition, offsite disposal, and the installation of access roads and a diversion canal. To ensure regulatory compliance and ecological protection, the contract mandates turbidity monitoring, environmental monitoring, and endangered species monitoring, alongside final seeding of the site. The project was managed under NAICS code 237990 and involved a competitive bidding process with offers evaluated in June 2014.