Cannelton Locks and Dam


The Cannelton Locks and Dam is located on the Ohio River at mile 720.7 below Pittsburgh, Pennsylvania. It is three miles upstream from Cannelton, Indiana. The navigation locks are located on the right descending bank or Indiana side of the river. The upper pool maintained above the dam extends upstream for a distance of 114 miles to the McAlpine Locks and Dam at mile 606.8 and for a short distance up Salt River.


The project was approved as a replacement for existing Locks and Dam 43, 44, and 45 on January 27, 1960, by the Secretary of Army under authority of Section 6 of the Rivers and Harbors Act approved March 3, 1909, as amended.


Cannelton Locks’ construction started in July 1963. The locks were placed in operation December 1966 and completed April 1967. Dam construction started in August 1965 and the dam was completed in 1974. The Overlook property, consisting of 128 acres, was initially built during construction of the project. The property was excessed in 1995 to the U.S. Fish

Locks and Dams

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Ohio River

Markland Locks and Dam
2760 US 42 West
Warsaw, KY 41095
(859) 567-7661

McAlpine Locks and Dam
805 North 27th Street
Louisville, KY 40212
(502) 776-6866

Cannelton Locks and Dam
5281 E. State Road 66
Cannelton, IN 47520
(812) 547-2962

Newburgh Locks and Dam
6877 State Road 66
Newburgh, IN 47630
(812) 853-8470

John T. Myers Locks and Dam
16501 Raben Road
Mt. Vernon, IN 47620
(812) 838-5836

Smithland Locks and Dam
1401 Smithland Dam Road
Brookport, IL 62910
(618) 564-2315

Olmsted Locks and Dam
567 New Dam Road
Olmsted, IL 62970
(618) 748-6400


Green River

Green River 1
5048 Dam and Lock Road
Reed, KY 42451
(270) 826-7360

Green River 2
695 W. 1st Street
Calhoun, KY 42327
(270) 273-3152

Lock Information

 Main Lock  110’ x 1200’
 Auxilliary Lock  110’ x 600’

Dam Information

Type Concrete fixed
weir with tainter gate
Length 1,412'
Upper pool 383'
Lower pool 358'
Number of gates 12
Height of gates 42'
Width of gates 100'