The Whiting-Turner Contracting Co., Baltimore, Maryland, is awarded an $18,125,732 firm-fixed-price modification to previously awarded task order N4008520F6537 placed against contract N40085-20-D-0036. This modification provides for the construction of a fourth floor addition and west elevator to the Waterfront Support Facility, Building 178, at Portsmouth Naval Shipyard. Award of this modification brings the total cumulative contract value to $87,000,389. Work will be performed in Kittery, Maine, and is expected to be completed by June 2024. Fiscal 2022 operation and maintenance, (Navy) funds in the amount of $18,125,732 will be obligated at time of award and will expire at the end of the current fiscal year. The Naval Facilities Engineering Systems Command Atlantic, Officer in Charge of Construction Portsmouth Naval Shipyard, Portsmouth, New Hampshire, is the contracting activity.