Commander, Navy Installations Command (CNIC) Design-Bid-Build, RM-23-1146 Dry Dock 2 Caisson Overhaul at Portsmouth Naval Shipyard (PNSY) in Kittery, Maine

NAVFAC Atlantic is conducting market research for a Design-Bid-Build project to overhaul the Dry Dock 2 Caisson at Portsmouth Naval Shipyard. Project RM-23-1146 involves a comprehensive overhaul to maintain certification, along with seat and vertical extensions to provide continuous flood protection between Berth 5 and Berth 6. The estimated value is between $10,000,000 and $25,000,000. The work requires specialized technical experience, as portions of the overhaul must be completed while the caisson is removed from the water. Firms must demonstrate experience with the construction or renovation of floating vessels and the precise placement of caissons. This Sources Sought notice will help the Navy determine the availability of small businesses and inform the final acquisition strategy. Submissions are due by June 17, 2026, and must follow specific formatting requirements, including a 10-page limit for the capability statement and the use of provided templates for project data. NAVFAC Atlantic is conducting market research for project RM-23-1146, the overhaul of the Dry Dock 2 Caisson at Portsmouth Naval Shipyard. This work is required to maintain certification and shipyard readiness. The scope includes structural modifications to the caisson's dimensions and seating. The project involves a full overhaul of the Dry Dock 2 Caisson at Portsmouth Naval Shipyard to maintain its certification. Work includes a seat extension and a vertical extension to create a continuous flood barrier from Berth 6 to Berth 5.