Lock and Dam No. 10

Lock and Dam No. 10 is a lock and dam located in Guttenberg, Iowa on the Upper Mississippi River around river mile 615.0. It was constructed and placed in operation November 1937. The site underwent major rehabilitation 1989—2006. The dam consists of a concrete dam 763 ft long with four roller gates and eight tainter gates. The earth embankment is 4223 ft long with a concrete spillway 1200 ft long. The lock is 110 ft wide by 600 ft long. The lock and dam are owned and operated by the St. Paul District of the United States Army Corps of Engineers-Mississippi Valley Division.

The Friends of Pool 10 is a volunteer organization dedicated to the cleanup of the sloughs, backwaters and islands of the pool. Its first annual cleanup was in April 2007.