The Hiram M. Chittenden Locks (Ballard Locks) small chamber is closed to all marine traffic and will remain closed for routine maintenance until 5 p.m., March 14, 2022. The large lock will continue operations around-the-clock for vessels. Lock staff attendants will get commercial traffic through as quickly as possible. All pleasure boats will use the large lock, and boaters should be prepared with appropriate equipment and crew. Mariners may experience delays, depending on passage demand.

Large lock requirements include long lines and fenders on board. Kayakers are not allowed to use the large lock chamber. See the 2022 Waggoner Cruising Guide, page 116, for information regarding procedures for transiting the locks, or go to

The annual closure gives dam safety experts and maintenance staff the chance to dry out the chambers for thorough inspections and to make necessary repairs. For more information, contact the Lockmaster at (206) 297-9821.