The U.S. Navy awarded San Diego-based Harper Construction Co. Inc. an $18.1 million task order for construction at Naval Air Station Fallon in Nevada.

Under the deal, Harper will build a tactical ground mobility training and maintenance facility for special operations forces.

The deal calls for infrastructure improvements, including utility work, as well as facility improvements. Functional spaces will include training classrooms, vehicle training bays, vehicle maintenance bays, shops, exam, administration, weapons cleaning, gear lockers, fitness center, break area and armory.

The task order includes 10 unexercised options and one planned modification which if exercised would increase the cumulative task order value to $21.7 million.

Work is expected to run through February 2017.

The Navy Facilities Engineering Command Southwest in San Diego awarded the task order. The command received six proposals.

Harper received the task order under an existing multiple award construction contract.