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Welcome the Locking Through Page!

Navigation locks and dams are operated and maintained by the U.S. Army Corps of Engineers. The lockmaster has full authority over the movement of boats in the lock and its approaches. 

If you’re preparing to go through a lock, be sure your boat is equipped with at least two 50-foot lines, so you can moor your vessel to the floating mooring bits (posts) on the lock chamber wall that move up and down as the water level rises or falls.

Safety is the prime consideration when locking any type of vessel through a lock. Operators must require all passengers to wear a coast guard approved life jacket, and make sure no one in your boat is standing on the foredeck or on the roof when you’re passing through a lock. 

It’s best to learn as much as you can about a specific lock before you try to navigate through, as lock facilities vary in size and how they operate.  Please select a lock from below to learn more about it's locking  though procedures.

Locking Through Pamphlet

Great Lakes and Ohio Rivers Division

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Kanawha River

  • Belleville Lock
  • London Lock
  • Marmet Lock
  • Winfield Locks

Ohio River

  • Meldahl Lock
  • Greenup Lock
  • Racine Lock
  • Robert C. Bryd Lock
  • Willow Island Lock

Clinch River
  • Melton Hill Lock

Cumberland River

  • Barkley Lock
  • Cheatham Lock
  • Old Hickory Lock
  • Cordell Hull Lock

Tennessee River

  • Kentucky Lock
  • Pickwick Lock
  • Wilson Lock
  • Wheeler Lock
  • Guntersville Lock
  • NickaJack Lock
  • Chichamauga Lock
  • Watts Bar Lock
  • Fort Loudon Lock

South Atlantic Division

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Caloosahatchee
    • W. P. Franklin Lock
    • Ortona Lock

Canaveral Barge Canal
    • Canaveral Lock

Okeechobee
    • Moore Haven Lock

St. Lucie Canal
    • Port Mayaca Lock
    • St. Lucie Lock

Alabama
    • Claborne Lock
    • Millers Ferry Lock
    • Robert F. Henry Lock

Apalachicola
    • Jim Woodruff Lock

Black Warrior
    • Armistead I. Seldon Lock
    • William Bacon Oliver Lock
    • Holt Lock
    • John Hollis Bankhead Lock

Chattahoochee
    • George W. Andrews Lock
    • Walter F. George

Tenn-Tom
    • Jamie Whitten Lock
    • G.V. Sonny Montgomery Lock
    • John Rankin Lock
    • Fulton Lock
    • Glover Wilkins Lock
    • Amory Lock
    • Aberdeen Lock
    • John C. Stennis Lock
    • Tom Bevill Lock
    • Howell Heflin Lock

Tombigbee
    • Demopolis Lock
    • Coffeeville Lock

Savannah
    • Savannah Lock
Cape Fear
    • Lock 1
    • Lock 2
    • William O. Huske Lock

South Western Division

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McClellan-Kerr Arkansas River Navigation System (MRARNS-Arkansas)
Montgomery Point
Norrell
Lock 2
• Joe Hardin Lock
• Emmett Sanders Lock
• Charles Maynard Lock
• David D. Terry Lock
• Murray Lock
• Toad Suck Ferry Lock
• Arthur V. Ormond Lock
• Dardanelle Lock
• Ozark-Jets Taylor
• James W. Trimble

McClellan-Kerr Arkansas River Navigation System (MRARNS-Oklahoma)
• W.D. Mayo Lock
• Robert S. Kerr Lock
• Webbers Falls Lock
• Chouteau Lock
• New Graham Lock
Gulf Intracoastal Waterways (GIWW-Texas)
Brazos River Flood Gates
Colorado River Locks