Middletown Professional Park 520 Saybrook Road Middletown, CT 06457 860-347-4258 DIRECTIONS From the South: Take Rte 9 North to exit 11, turn RIGHT onto Randolph Rd. (Rte 155). At the next light, take a LEFT onto Saybrook Road (Rte 154). Middlesex Professional Park is approximately 1/2 mile on the right. From the North: Take Rte 9 South to exit 11, turn RIGHT onto Randolph Rd. (Rte 155). At the next light, take a LEFT onto Saybrook Road (Rte 154). Middlesex Professional Park is approximately 1/2 mile on the right.