W91237-26-Q-A098 Supply and Delivery of Rip Rap to Dillon Lake, U.S. Army Corps of Engineers, Huntington District. Please note the solicitation, all attachments, and extended details are accessible by... W91237-26-Q-A098 Supply and Delivery of Rip Rap to Dillon Lake, U.S. Army Corps of Engineers, Huntington District. Please note the solicitation, all attachments, and extended details are accessible by utilizing the below link which will take you to the PIEE system. Please pay special attention to the instructions to offerors located in the solicitation.