It meets an intersection with Route 286, before becoming Maple Street. It then meets an overlap with Route 83, before becoming Crystal Lake Road. Route 140 then meets an overlap with Route 30, as it becomes Sandy Beach Road.
The road crosses Route 286 and turns into Maple Street. It subsequently intersects with Route 83 and becomes Crystal Lake Road. Finally, Route 140 merges with Route 30 and transforms into Sandy Beach Road.