The Melvin Price Locks and Dam in Alton has closed to all commercial and recreational traffic after engineers learned of a concerning crack in one of the lock chamber’s lift gates.

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A towboat pushes barges into the main lock at the Melvin Price Locks and Dam 26 in Alton in April. On Tuesday the main lock chamber was closed after a crack was discovered in a lift gate ...

Crews work on lock lift gate crack By John Badman, Staff Photographer Updated Aug 3, 2023 4:22 p.m.