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

The U.S. Navy, through Commander, Navy Installations Command and procuring agency Navfacsyscom Atlantic, is conducting market research for the Dry Dock 2 Caisson Overhaul project at Portsmouth Naval Shipyard in Kittery, Maine, under solicitation number N6247026R0031. This effort is a Sources Sought Notice, explicitly not a request for proposal, aimed at gathering industry capabilities to support a future Design-Bid-Build contract for a critical infrastructure overhaul. The project requires the complete refurbishment of the Dry Dock 2 Caisson to maintain certification, including structural extensions to the caisson seat and vertical height increase to ensure continuous flood protection from Berth 6 through the caisson to Berth 5. Work must be performed with the caisson removed from the water, demanding specialized experience in lifting, towing, and handling caissons weighing 700 long tons or more, and conducting operations in dry dock, upland, waterfront, or barge environments. The estimated contract value ranges between $10 million and $25 million, classified under NAICS code 237990 for Other Heavy and Civil Engineering Construction. Respondents must submit the Contractor Information Form, Project Information Form, Project Matrix, Project Labor Agreement Request for Information, a narrative addressing dry dock access and lifting experience, and a capabilities statement limited to ten pages with specific formatting requirements. Proposals must be electronically submitted by June 17, 2026, at 2:00 p.m. Norfolk time, with attachments capped at 5MB, and late submissions will not be accepted. The government reserves the right to cancel the acquisition without obligation and all submissions are treated as confidential. Small business prime contractors must comply with FAR 52.219-14 restrictions on subcontractor composition, and 8(a) mentor-protege teams must provide SBA approval documentation and specify the protege’s performance percentage.