The Naval Facilities Engineering Systems Command (NAVFAC) Marianas has issued a justification for other than full and open competition for a sole-source contract modification to Tutor Perini Corporation-Nan Inc. A Joint Venture (TPC-NAN JV). This action is for critical and immediate emergency waterfront stabilization repairs to the Glass Breakwater at Apra Harbor, Guam. The required services are necessary to address damage sustained from Typhoon Sinlaku and mitigate further deterioration of this critical infrastructure. The scope of work includes, but is not limited to, bathymetric surveys, hydrodynamic modeling, rock recovery, and the procurement and placement of critical armor stone. The estimated value of this modification is $30,000,000. The statutory authority permitting this action is FAR 6.302-2, Unusual and Compelling Urgency.