The Department of Defense, through the Department of the Army, is seeking sources for the Garrison Dam Spillway Modification Project, specifically focusing on the West Abutment Lignite Drain in Riverdale, North Dakota. This project falls under the category of Other Heavy and Civil Engineering Construction and aims to enhance the structural integrity and functionality of the dam's spillway. Such modifications are crucial for ensuring the safety and efficiency of water management in the region. Interested parties can reach out to Karen Caskey at Karen.l.caskey@usace.army.mil for further details regarding this sources sought notice.