Harper Construction Co. Inc., San Diego, California, is awarded a $36,044,616 firm-fixed-price task order N6247321F4741 under a multiple award construction contract for the design and build of a radiographic building at Naval Air Weapons Station (NAWS) China Lake. The task order also contains three unexercised options, which if exercised would increase cumulative task order value to $38,788,510. Work will be performed in Ridgecrest, California, and is expected to be completed by February 2024. The work to be performed provides for the design and construction of a radiographic building at NAWS China Lake. The facility provides inspection and radiological evaluation of energetics, energetic components, and all up ordnance in support of the Navy Ordnance Test and Evaluation Division. Fiscal 2021 military construction, (Navy) contract funds in the amount of $36,044,616 are obligated on this award and will not expire at the end of the current fiscal year. Four proposals were received for this task order. The Naval Facilities Engineering Systems Command, Southwest, San Diego, California, is the contracting activity (N62473-21-D-1206).