Lock and dam protocol is sometimes referred to as a "lock through procedure." The procedure is determined by the National Guard for safety. The locks are used to safely move both small and large vessels through and around dams.
Boaters must radio in and request permission to enter the lock from the operator. Vessels should wait for verification from the lock operator before entering the lock. Verification can be received either via radio or by light signals at the entrance to the lock. Make sure that fenders are high enough to protect the sides of your vessel when entering and securing the boat in the lock.
Once inside the lock, proceed to the designated mooring bit. Tie in with the mooring bit at midship if possible. Smaller vessels may be asked to moor alongside other vessels, including larger boats. Use two spring lines to secure the boat, one from the bow and another from the stern.
As the boats progress through the lock, make sure that no lines get caught on moving parts. If a line does get stuck, attempt to release them and secure them again as quickly as possible. All vessels should remain securely tied to their bit until instructed to proceed by the lock operator.
