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 threeState Route 138 (SR 138) is an east–west state hhway in the U.S. state of California that generally follows the northern foothills of the San Gabriel Mountains and the western Mojave