miter gates News - The Waterways Journal

Gate Cracks Extend Lockport Closure

Locks and Dams

Gate Cracks Extend Lockport Closure

February 28, 2025

Cracks found in both lower miter gates during dewatering have extended the closure of the Lockport Lock, located at Illinois River Mile 291. The lock closed for installation of new… Read More

Corps Adds Additional Closure Date To Lock And Dam 8 Miter Gate Replacement

June 24, 2022

The U.S. Army Corps of Engineers, St. Paul District, is adding an additional navigation closure date to install new miter gates at Lock and Dam 8, in Genoa, Wis. Corps… Read More

Rehab Work Proceeding At Lock And Dam 4

Lock and Dam 4 in Alma, Wis., is dewatered in order to conduct maintenance. Major winter maintenance like this occurs about every 20 years and includes concrete repairs, sandblasting and repainting the miter gates and updating the bubbler system used to prevent ice buildup within the lock chamber. Due to the use of heavy equipment and safety requirements, the parking lot and pedestrian bridge are closed during the repairs. The $3.5 million maintenance project is scheduled to be completed mid-March, ahead of the 2021 navigation season. (Photo courtesy of St. Paul Engineer District)

Rehab Work Proceeding At Lock And Dam 4

February 5, 2021

Lock and Dam 4 on the Upper Mississippi River in Alma, Wis., saw on average about 6,000 loaded barges per year pass through over the past five years, with 10… Read More