Merrimac Ferry opens for the 2024 season

Release date: April 1, 2024

The COLSAC III ferry, which operates seasonally to carry WIS 113 traffic across the Wisconsin River between Okee in Columbia County and Merrimac in Sauk County, has opened for 2024. Wisconsin’s only free ferry, the COLSAC runs 24 hours a day, seven days a week during the operating season. A single crossing takes about seven minutes.

Traffic Advisory: WIS 113 between County J in Lodi and WIS 188 in Okee is currently under construction and open to local traffic only. Through traffic is detoured using WIS 60 and WIS 188 to the ferry’s south landing.

For more information regarding history and live webcams, visit:

For more information, contact:​

Hannah Punzel
WisDOT Southwest Region Communication Manager
(608) 246-7907
hannah.punzel@dot.wi.gov