rt138Connecticut Route 138 is the portion of the 118-mile-long (190 km) multi-state Route 138 within the state of Connecticut. It is one of several New England state hhways that travel through threeRoute 138 is a state hhway located entirely in Monmouth County, New Jersey that extends for 3.52 miles (5.66 km). The route's western terminus is at the eastern end of Interstate 195