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Fox River Stratton Operations Status Update
William G. Stratton-Thomas A. Bolger Lock and Dam
Algonquin Dam
IDNR 2025 Operating Schedule for Stratton Lock
MCHENRY, IL – The Illinois Department of Natural Resources (IDNR) operating schedule for the William G. Stratton-Thomas A. Bolger Lock and Dam facility on the Fox River in McHenry County, opens for the 2025 season on Thursday, May 1.
Normal operating hours will be seven days per week from 8:00 a.m. until midnight during the months of May through September, and 8:00 a.m. until 8:00 p.m. for the month of October.
The Stratton-Bolger facility is closed for the winter season each year from November 1 through April 30.
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Update: *This Update is based on the current forecast and will be adjusted based on future forecasts and rainfall.
SUMMARY
There is approximately 0.30” of precipitation forecasted for the next 7 Days (Figure 4). Inflows are forecasted to peak at just under 1400 cfs on Saturday (Figure 1). Fox Lake and areas upstream of the dam are forecasted to drop to just above 4.00’ as gates are lowered to accommodate the additional inflows (Figure 2). The Lower River should expect to see additional depth this weekend from the increased outflows (Figure 3). With halfway decent temperatures and light winds forecasted, it should be a good weekend for the system.