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JP Murtha Float Mooring Bitts Retrofit - The United States Army Corps of Engineers, (USACE) Pittsburgh District has a requirement for the retrofitting of existing hydraulic structures within an active navigation lock. The Prime Contractor must be capable of executing complex in-the-wet construction, specifically: The John P. Murtha Floating Mooring Bitt Retrofit consists of the installation of Government furnished Floating Mooring Bitts into Contractor fabricated embedded frame on the existing River Chamber Middle Wall. In-the-wet construction methods are required. Design, fabrication, and installation of two dewatering boxes are required for installation of the Floating Mooring Bitts. Removal or alterations to existing work in such a manner as to prevent injury or damage to any portions of the existing work which remain. Repair or replace portions of existing work which have been altered during construction operations to match existing or adjoining work, as approved by the Contracting Officer. At the completion of operations, existing work must be in a condition equal to or better than that which existed before new work started. To achieve this Requirement the Contractor must: a. Floating Plant Operations: Providing, operating, and mooring a fully compliant floating plant (crane/deck barge and push boat) in an active river chamber in accordance with EM 385-1-1. b. Dewatering Box (Cofferdam): Fabricating, installing, and sealing structural steel dewatering boxes against lock

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