The Captain Anthony Meldahl Locks and Dam is a non-navigable river control dam with an associated lock, located at mile marker 436 on the Ohio River. It was named for Captain Anthony Meldahl, a river captain.
The dam has a top length of with a fixed weir and a open crest. At normal pool elevation the length is upstream encompassing an area of . The facility is operated by the United States Army Corps of Engineers.
A joint venture between Baker Concrete and Alberici Constructors built a three turbine hydroelectric plant and spillway addition to the Meldahl Locks and Dam With a generating capacity of 105 MW. The facility became fully operational in 2016.Mehdahl Hydro Project
See also List of crossings of the Ohio River List of locks and dams of the Ohio River
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