The Plimoth Patuxet Highway, formerly the Plimoth Plantation Highway, is a two-lane divided freeway with plastic stanchions posted on a rumbled asphalt median in Plymouth in the US state of Massachusetts.

However, motorists can use exit 13 to reverse direction and travel southbound on Route 3.

The highway proceeds east, serving Plimoth Patuxet, Plymouth Beach and the village of Chiltonville.

The highway ends at a special intersection in White Horse Beach and Manomet at Route 3A.

An act naming the two-mile (3.2 km) spur Plimoth Plantation Highway was approved on April 3, 1969, 18 years after the highway had opened.