14 is a lock and dam located near LeClaire, Iowa on the Upper Mississippi River above Davenport, Iowa and Moline, Illinois.

Connected to it is a 1,127 feet (343.5 m) long non-submersible rock fill dike which extends to the Illinois side.

[2] The site on the National Register of Historic Places as the Lock and Dam No.

14 Historic District (#04000174) listed in 2004 consisting of 3,043 acres (12.3 km2), 1 building, 6 structures, and 2 objects.

It was completed in two phases, the first as part of the six foot channel project from 1921 to 1924, which included a lock and canal bypassing a hazardous rapids.