Trevcon Construction partnered with Skanska USA Civil Northeast via a joint venture is contracted to assist in the largest expansion to take place at Electric Boat’s Groton shipyard in more than 45 years. The JV will install more than 500 caissons with pile caps, control blast bedrock, dredge for future vessel use, and install bulkheads to facilitate the completion of the 200,000 square foot South Yard Assembly Building. This facility will enable Electric Boat to deliver the U.S. Navy’s number one acquisition priority, the Columbia class next-generation fleet of ballistic missile submarines.