This project involves modifying Outfall 40 at the Holston Army Ammunition Plant in Kingsport, Tennessee, to address temperature compliance issues in the water system. The work includes rerouting the channel, constructing a new section that discharges directly into the Holston River, and stabilizing the channel. The planned construction will require clearing land, building a temporary road, and abandoning the existing weir and outfall. The need for this project is driven by increased production and cooling water flow that would otherwise exceed permitted temperature limits for the Arnott Branch.