The U.S. Army Corps of Engineers is planning an emergency contract modification for the reconstruction of a downstream guide cell at Lock and Dam 25 in Winfield, Missouri. The work involves providing all necessary materials and labor to replace a failed guide cell, ensuring continued safe and effective operations at the facility.

This requirement will be addressed through a sole source contract with Massman Construction Co. due to unusual and compelling urgency, as authorized by federal regulations. The project falls under the NAICS code for Other Heavy and Civil Engineering Construction.