PSNS - Spare Caisson 4/5 Repair, FAC 964

Cat 2 IH DBB, Code 400 Award Scope: project will inspect, repair, and refurbish the Spare Caisson 4/5 (Facility 964). The Caisson will undergo structural preservation of the interior and exterior surfaces, resurfacing of operating and weather decks, seat seal repair, and internal structural repairs. Mechanical repair includes the overhaul of various valves, i.e., discharge, sea, sinking, check and equalizing valves. This project also includes overhaul of the pumps and check valves. Electrical repairs include lighting upgrades, replacement of all cathodic protection zinc anodes along with the overhaul of the pump controllers and valve operators. Site preparation includes ultra-sonic testing of the hull and production of updated drawings along with towing, staging, tooling, equipment, disposal, temporary services, safety and laydown. Test and Commission includes operational verification of all mechanical and electrical systems. Shipyard station support includes drydocking services, temporary services support along with outage and schedule coordination. Although there are no known quantities of hazardous materials, due to experience with similiar projects, it is anticipated that they will be encountered. Contract administration will be provided by PSNS & IMF. PROJECT: This project will accomplish the mandatory ten-year drydocking and inspection of the Spare Caisson 4/5 (Facility #984) including extensive interior and exterior thickness measurements, as required by NAVSEA MIL-STD-1625D Safety Certification Program for Dry Docking Facilities and Shipbuilding Ways for U.S. Naval Ships. The project will include repair and refurbishment of caisson interior and exterior surfaces, repair and refurbishment of caisson mechanical and electrical systems, overhaul of the main dewatering pumps and su ... NOTE: description has been truncated, please see Project Note for full description.