Portsmouth Naval Shipyard is a United States Navy facility located in Kittery, Maine, near the city of Portsmouth, New Hampshire. Established in 1800, it has a long history of shipbuilding and repair, primarily focusing on submarines and surface ships. The shipyard plays a crucial role in maintaining the U.S. Navy's fleet, ensuring that vessels are ready for deployment. The shipyard covers approximately 300 acres and employs thousands of workers, including skilled tradespeople and engineers. It is known for its advanced technology and facilities, which support various operations, including submarine overhauls and nuclear maintenance. The shipyard's strategic location along the Piscataqua River enhances its operational capabilities.