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Fox River Stratton Operations Status Update

William G. Stratton-Thomas A. Bolger Lock and Dam

Algonquin Dam

IDNR 2024 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 2024 season on Wednesday, 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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Fox River Update 04/12/2024

Update: *This Update is based on the current forecast and will be adjusted based on future forecasts and rainfall.


The current forecast shows inflows continuing to drop over the next 7 days (Figure 1). Currently the watershed is forecasted to receive between 0.5”-1.0’ of rain over the next 7 days (Figure 4). Water levels are predicted to continue dropping (Figures 2 & 3). Water levels are expected to remain higher than scheduled for the next two weeks depending on future precipitation.