Summary An old number for part of today's Route 109 and Route 209 in Bantam and Morris.
From c. 1925
To Jan. 1, 1932
State Highway 310 followed today's Route 109 and Route 209 from US 202 in Bantam to Route 61 in Morris. In 1932, this became Route 109; in 1963, Route 109 was redefined and Route 209 was created.
