Electric Boat Corp., Groton, Conn., is being awarded a $174,486,588 contract for lead yard services and development studies and design efforts related to Virginia-class submarines. The contract provides lead yard services for Virginia-class submarines that will maintain, update, and support the Virginia-class design and related drawings and data for each Virginia-class submarine, including technology insertion, throughout its construction and post shakedown availability period. The contractor will also provide all engineering and related lead yard services necessary for direct maintenance and support of Virginia-class ship specifications. This contract option brings the cumulative value of the contract to $346,340,280. Work will be performed in Groton, Conn. (91.1 percent); Newport News, Va. (4.0 percent); Quonset, R.I (3.5 percent); and Newport, R.I. (1.4 percent). Work is expected to be completed by October 2011. Contract funds will not expire at the end of the current fiscal year. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.