Army Corps of Engineers take action to maintain Minnesota lake levels during drought Because of ongoing drought conditions, the United States Army Corps of Engineers is using dams in areas across Minnesota to help maintain lake levels. The Corps is also urging caution for boaters going out on the water. Written By: Forum News Service | 5:00 pm, Jul. 21, 2021 × The United States Army Corps of Engineers recently announced that it's reducing flows from the Red Lake Dam at the outlet of Lower Red Lake. (YouTube screenshot) ST. PAUL — The United States Army Corps of Engineers in the St. Paul District is working to maintain lake levels and cautioning boaters going out on waters. The effort comes as Minnesota faces drought conditions nearly statewide.