24/7. There are exceptions. Routine maintenance and fueling. Check for the flashing light on HWY 12 just past HWY K in the westbound lane. There is another light on HWY 78 between the HWY 113 and Merrimac. Last, the ferry closes for winter. Specifically when the main channel is frozen. Alternate routes around the lake include HWY 78, HWY 188, and HWY 60.
24/7 365
24/7
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