No longer assigned. In the 1920s, State Highway 134 followed today's US 7 between Canaan and New Milford. (US 7 at that time went into New York along NY 22... strange).

The "modern" Route 134, commissioned in 1932, followed today's Route 109 between US 202 and Route 47, for a length of 6.10 miles. It disappeared from oil company maps in 1941, but remained on official maps and highway logs until at least 1949.