The highway runs 1.730 miles (2.784 km) from the Rhode Island state line north to Interstate 195 (I-195) in Swansea.

Market Street continues south as Rhode Island Route 136 into Warren.

Route 136 has a four-ramp partial cloverleaf interchange with I-195, then enters the town of Rehoboth as Kingsley Way.

The state highway ends and continues as a town road at an arbitrary location between the town line and Davis Street to the north.

Route 136 is a part of the National Highway System from its southern end to I-195.