The U.S. Army Corps of Engineers is seeking sources for the supply and delivery of rip rap from approved quarries for shoreline stone protection at Rathbun Lake Project in Centerville, Iowa. Interested firms must demonstrate the ability to deliver a minimum of 1,500 tons per day using standard end dumping trucks. Responses are due by 12:00 P.M. (CST) on June 22, 2026. No budget information was specified in the description. The location for performance of services is Rathbun Lake Project, Centerville, Iowa.