County Trunk Highways (Wisconsin)
County trunk highways (also called County Highway, CTH; for national mapping software/app consistency, CR, or County Road are also used) are highways maintained at the county level or below in the U.S. state of Wisconsin. Every county maintains its own county trunk highway system.
| County Trunk Highways | |
|---|---|
   Standard Wisconsin county trunk highway shields | |
| Highway names | |
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | (State Trunk) Highway X (STH-X or WIS X) |
| County: | (County Trunk) Highway X (CTH-X) |
| System links | |
| County Trunk Highways | |
Description
Wisconsin uses letters as route designations for its county roads. Routes may be labeled with a single letter (CTH-H), double letter (CTH-LL or CTH-AB) or triple letter (CTH-BBB). Roads are usually named sequentially, although the letter designation may stand for the initials of a road, a geographical feature, a political division (such as CTH KR along the Kenosha/Racine county line), or in honor of a person.[1] Two county highways running concurrent on the same route often take on both letters on that portion; for instance two routes designated CTH-P and CTH-W would take the designation CTH-PW on a certain route before their divergence down the road, returning to their individual route designations thereafter.
Route designations may be repeated within a single county, depending on the size and population of the county. Designations may continue over a county line. Usually the letter designation remains the same when the route is a former Wisconsin state highway that has been decommissioned and turned over to county control. There is no east/west or north/south pattern restrictions on which letters can be used for a road, and they can be looped around counties and metropolitan areas. County highways can also hold concurrencies with state and U.S. highways; there are no current concurrencies with county highways and interstates.
History
County trunk highways first came into being in 1921. The first county highways were independent of the state's trunk highway system and lacked state legislative approval. By 1924, every county in Wisconsin had set up its own county highway system, with the state authorizing county highways in 1925.
County trunk highways in Wisconsin
- Adams County
- Ashland County
- Barron County
- Bayfield County
- Brown County
- Buffalo County
- Burnett County
- Calumet County
- Chippewa County
- Clark County
- Columbia County
- Crawford County
- Dane County
- Dodge County
- Door County
- Douglas County
- Dunn County
- Eau Claire County
- Florence County
- Fond du Lac County
- Forest County
- Grant County
- Green County
- Green Lake County
- Iowa County
- Iron County
- Jackson County
- Jefferson County
- Juneau County
- Kenosha County
- Kewaunee County
- La Crosse County
- Lafayette County
- Langlade County
- Lincoln County
- Manitowoc County
- Marathon County
- Marinette County
- Marquette County
- Menominee County
- Milwaukee County
- Monroe County
- Oconto County
- Oneida County
- Outagamie County
- Ozaukee County
- Pepin County
- Pierce County
- Polk County
- Portage County
- Price County
- Racine County
- Richland County
- Rock County
- Rusk County
- Sauk County
- Sawyer County
- Shawano County
- Sheboygan County
- St. Croix County
- Taylor County
- Trempaleau County
- Vernon County
- Vilas County
- Walworth County
- Washburn County
- Washington County
- Waukesha County
- Waupaca County
- Waushara County
- Winnebago County
- Wood County
See also
References
- Bessert, Chris. "Wisconsin Highways: The Trunkline System". Wisconsin Highways. Retrieved 2007-03-20.