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Safety Tips

Locks

Enter the lock at idle speed.

Dams help maintain a consistent depth of water on a river which aids navigation. Because dams have one level of water above the dam and another below, locks are used to assist in safe passage from one level to the other.

When using locks, make sure you understand the procedures for boaters.

  • When approaching a lock at idle speed, sound one long blast followed by one short blast to indicate your desire to lock through. On the Ohio River, use the pull chain located on the short lock wall to activate the whistle.
  • Do not block the way of watercraft exiting or entering the lock or priority vessels. Especially stay clear of barges and other large vessels which create a current which can draw smaller boats into their path.
  • Avoid restricted zones and the areas at the end of lock walls at all times.
  • Wait well upstream or downstream of the lock until permission is granted to enter the lock chamber.
  • Enter the lock only after the lockmaster directs you and grants permission to proceed. Either flashing lights or horn blasts will be used to communicate with you. Radio communication is available with lock masters on the Ohio River. Channel 16 may be used as an emergency hailing channel to contact them initially. You will be directed to transmit on Channel 13 or 14. Communications may not interfere with the transmissions between tows.
  • Remain seated while the water level changes, and keep your life jacket secured.Loosely tie your craft to the mooring devices in the lock to permit your boat to rise and fall with the water. Use floating mooring devices when available. Boat fenders may be used to protect the hull of your boat.
  • Carry a minimum of 50 feet of mooring line. When mooring, make sure your lines can rise and fall with the water level. Do not tie to a fixed object.
  • Stay seated and wear your lifejacket.
  • Depart the lock at idle speed when signaled by the lockmaster or the signal light.

When planning your outing, be sure that you check the hours of operation for any lock which will be encountered. Be aware that designated craft such as United States military vessels, commercial passenger craft, commercial tows and commercial anglers have priority over recreational boats.