History of King's Highway 3B (Tillsonburg):
Tillsonburg's King's Highway 3B was created in 1973, when a new Highway 3 Bypass was completed around the southern side of Tillsonburg. The old Highway 3
route through downtown along John Pound Road, Oxford Street and Simcoe Street was redesignated as Highway 3B. A portion of Highway 3B ran concurrently
with Highway 19, from Broadway Street to Vienna Road. The route lasted only until 1977, when it was formally decommissioned. Two other Highway 3B routes
have existed in Ontario. The other two routes were located in the Windsor area and were not related in any way to Tillsonburg's Highway 3B.
| 
