This document provides details for a Request for Proposal (RFP) solicitation issued by the Department of the Army Corps of Engineers Engineering District Fort Worth on behalf of the USDA-ARS Knipling-Bushland Research Laboratory. The solicitation, numbered W9126G21R0034, is for a modernization project at the USDA-ARS Knipling-Bushland Research Laboratory. Interested parties should review the attached documentation for full requirements, including the scope of work, response deadline of April 5th 2021, and planned contract award date in July 2021. Pricing is to be provided as a firm fixed price for the design and construction of specified facilities. No set-asides or incumbent contractors are indicated. The USDA-ARS and Department of the Army Corps of Engineers will jointly administer the resulting contract.