It runs concurrent with Route 102 for a while, and crosses two arms of the Scituate Reservoir on causeways.

Route 14 roughly follows the historic Providence and Norwich Turnpike, later renamed to "Plainfield Pike."

Half of this bypassed road is currently submerged under the Scituate Reservoir.

Beyond Route 12, the original road continues as a paved path.

Emerging on the northeast side of the Reservoir, the path continues for 0.25 miles before rejoining Route 14.