Electric Boat Corp. (a General Dynamics Co.), Groton, Conn., is being awarded a $5.7m modification under previously awarded contract to exercise an option for maintenance and operation of the government furnished drydock SHIPPINGPORT (ARDM-4). The contractor shall maintain Navy certification, protect, and operate the Navy floating dry dock, and shall accomplish organizational level repairs and preservation to the government furnished dry dock. Work will be performed in Groton, Conn., and is expected to be completed by September 2008. Contract funds will expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.