Why Wisconsin's county highways are lettered, not numbered (2019)
18 days ago
- #Highway History
- #County Roads
- #Wisconsin
- Wisconsin's county roads are labeled with letters instead of numbers to differentiate them from state highways.
- The system was established in 1917 to avoid duplication in maintenance and repairs between state and county roads.
- Each county board decides the naming of their highways, leading to duplicates due to the limited 26-letter alphabet.
- When single letters are exhausted, counties use double letters (e.g., TT, SS) or combinations (e.g., CE).
- Wisconsin was the first state to host road schools, sharing best practices and innovations in road maintenance.
- The Wisconsin County Highway Association, formed in 1911, is the oldest such association in the nation.