LaGrange Lock Rehabilitation

under planning

Major rehabilitation of LaGrange Lock, a 110-ft x 600-ft structure built in the 1930s on the Illinois River in Versailles. The work will include dewatering and protecting the lock chamber; removing debris within the lock chamber; blasting; installing lock dewatering observation wells; cleaning lock-chamber floor weep holes; removing and replacing horizontal concrete; vertical concrete line-drilling, saw-cutting, blasting and grinding; precast-concrete panel fabrication and installation; constructing four Tainter-valve concrete protective piers; removing and replacing miter-gate anchorage; removing and replacing miter-gate machinery, including rotary actuators; removing and replacing Tainter-valve cylinder; and removing and repairing Tainter valves.