JDA Tainter Valves (TV3 & TV4) Repairview on SAM.gov

SYNOPSIS The U.S. Army Corps of Engineers (USACE), Northwestern Division, Portland District (CENWP) will be soliciting repair and rehabilitation of two Tainter Valves (TV3 & TV4) at the John Day Lock and Dam (JDA). The proposed project will be a competitive, firm-fixed price (FFP) construction contract MATOC. Project Scope: The following information represents the project objectives: The scope of this project is to furnish all labor, materials, and equipment to perform the comprehensive rehabilitation of the Tainter valves. The reinstallation work is to be performed inside of the navigation lock fill culverts. The structural and weld repair scope includes the following items: The repair of cracks, corrosion, and cavitation damage on the skin plate, girders, and other structural members as detailed in the engineering drawings provided with this bid advertisement. Corroded sections of the Tainter valve, including areas where the existing paint system has failed, will need to be repaired per USACE specifications. All structural welds must conform to AWS D1.1 standards. Contractors must factor in time for Government inspection, testing, and potential rework for rejected welds. The fabricating plant and fabricator must be certified under the AISC (American Institute of Steel Construction) Quality Certification Program, and must be designated an AISC Certified Plant, Category CBR: Major Bridge Fabrication, IBR: Certified Bridge Fabricator - Intermediate, ABR: Certified Bridge Fabricator - Advanced or HYD: Certified Metal Hydraulic Fabricator with a fracture critical endorsement (FCE) at time of bid and for the duration of the contract. The fabricator or fabrication plant must possess five 5 years documented experience on projects of similar scope. The component replacement and refurbishment scope includes: Replacement of top, bottom, and side seals for the Tainter Valves being repaired as part of this scope of work. Replacement of these seals will also include the replacement of all seal plates and seal plate hardware. The rehabilitation of the cavitated regions at the face of the downstream skin plate will require the installation of new armor' plate sections to mitigate the potential for additional cavitation. Replacement of these bushings will require close coordination with USACE personnel using information provided from the initial as-built survey of the Tainter valve to ensure correct alignment of the valve within the fill culvert. Background: The U.S. Army Corps of Engineers requires the repair and rehabilitation of at least two Tainter Valves (TV3 & TV4) at the John Day Lock and Dam (JDA). The primary scope of work will address structural issues identified in engineering drawings provided by USACE. The identified structural issues include significant weld cracking, cracking of the Tainter valve skin plates, cavitation damage at the skin plates, advanced corrosion of structural members and failure of the finish pain…