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For the first lock and dam to be built on the Mississippi, which was also called Lock and Dam No. 2, see Meeker Island Lock and Dam.
Dam in Minnesota, United States. Near Hastings
Following construction, the original lock walls settled and began to lean out of alignment, so a replacement lock was built. It was finished in 1948. A rehabilitation phase ran from 1987 to 1995. In 2009, Lock and Dam No. 2 became home to the nation's first commercial, federally licensed hydrokinetic power facility, which is a partnership between the City of Hastings and Hydro Green Energy, LLC of Westmont, IL.