About UsWisconsin’s 72 counties play a significant role in our state’s transportation system. We are responsible for the construction and maintenance of the 19,700 mile County Trunk Highway System. We are also responsible for maintenance of the 11,800 mile State Trunk Highway System and Interstate System under the oversight of the Wisconsin Department of Transportation. The WCHA represents Wisconsin’s 72 County Highway and Public Works Departments and has been established as a not-for-profit corporation. |
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