W912PL21B0004_FIO-2-DDRAddendum2021.pdf

This document provides details for a federal contract opportunity for the Alcoa Aluminum Plant Dike Phase II project. The U.S. Army Corps of Engineers seeks to construct approximately 3,000 linear feet of earthen filled dike flood control structure near Corona, Riverside County, California. The dike will have an average height of 22 feet above existing ground and width of crest at 15 feet, with 2.25 horizontal to 1 vertical side slopes. The upstream slope will be protected with riprap and bedding, while the downstream slope will be hydroseeded. Nearby roads will be impacted and modified. The performance period is 1095 calendar days, with early tasks to be completed within 730 days and later tasks within 365 days. The estimated cost range for this procurement is $10,000,000 to $25,000,000. This opportunity is a 100% total small business set aside under NAICS code 237990.