The United States Department of Agriculture – Agricultural Research Service (USDA-ARS) National Soil Dynamics Research Unit (SDRU), located at Auburn University, will be relocated to USDA's Research Park (Lab) and Aquatics (Storage) Sites. This project requires the construction of a state-of-the-art laboratory building and site related utilities and pavements, and optional lab annex/headhouse, greenhouse and other site related buildings and features at the Research Park Site. 12/9/25: AM0001 posted to PIEE 12/12/25: Site visit roster uploaded to SAM.gov 12/22/25: AM0002 posted to PIEE 1/6/26: AM0003 posted to PIEE 1/13/26: AM0004 posted to PIEE 1/15/26: AM0005 and AM0006 posted to PIEE