Written by
Marine Log Workers
The U.S. Military Corps of Engineers, St. Paul District, is closing 4 of its locks and dams in early December for upkeep. The closures will formally finish the 2023 navigation season on the Mississippi River between Minneapolis and Guttenberg, Iowa. They can even allow inspection, upkeep and improve work at a number of the amenities
Locks and dams 2 and 4 will near all river site visitors Dec. 4 – March 5, 2024, and locks and dams 3 and seven shall be closed Dec. 4 – March 15, 2024.
Lock and Dam 2, in Hastings, Minnesota, shall be dewatered for concrete repairs.
Lock and Dam 3, close to Welch, Minnesota; and Lock and Dam 7, close to La Crescent, Minnesota, shall be closed for guidewall upkeep. These repairs embrace divers’ inspections of the foundations, or cribs, anchored into the riverbed which the guidewalls sit upon. The divers will then set up types across the cribbing and pump grout into them to assist fill voids within the foundations that have been constructed within the Thirties.
Lock and Dam 4, close to Alma, Wisconsin, can even obtain some updates. Upkeep is scheduled for the guidewall finish cell, or round construction on the finish of the guidewall. Repairs embrace sheet pile and concrete placement.
The St. Paul District notes that guidewalls are lengthy extensions of a lock wall, each upstream and downstream of the lock chamber. They assist information tows throughout a lockage and supply mooring amenities for tows too lengthy to be accommodated in a single lockage.
The St. Paul District navigation program supplies a protected, dependable, cost-effective and environmentally sustainable waterborne transportation system on the Higher Mississippi River for the motion of business items and for nationwide safety wants.
