The Connecticut Turnpike (officially the Governor John Davis Lodge Turnpike) is a controlled-access highway and former toll road in the U.S. state of Connecticut; it is maintained by the Connecticut Department of Transportation (ConnDOT). Spanning approximately along a generally west–east axis, its roadbed is shared with Interstate 95 (I-95) for from the New York state border in Greenwich to East Lyme; I-395 for from East Lyme to Plainfield; and State Road 695 (SR 695) for from Plainfield to the Rhode Island state line at U.S. Route 6 (US 6) in Killingly. The turnpike briefly runs concurrently with US 1 from Old Saybrook to Old Lyme and Route 2A from Montville to Norwich. Construction on the Connecticut Turnpike began in 1954 and the highway was opened in 1958. It originally followed a sequential exit numbering system that disregarded route transition, where the exit numbers on I-395 were a continuation of the exit numbers on I-95. In 2015, the I-395 exit numbers were changed to a mileage-based system reflecting their distance from the split from I-95, effectively removing the defining element of the turnpike. In some sections southwest of New Haven, it carries an annual average daily traffic of over 150,000 vehicles. Route description I-95 I-95 enters Connecticut as the Connecticut Turnpike in Greenwich at the New York state line. The turnpike stretches for across the state, but only the first is signed as I-95. This portion of the highway passes through the most heavily urbanized section of Connecticut along the shoreline between Greenwich and New Haven, going through the cities of Stamford, Norwalk, Bridgeport, and New Haven, with daily traffic volumes of 120,000 to over 150,000 throughout the entire length between the New York border and the junction with I-91 in New Haven. The turnpike intersects with several major expressways, namely US 7 at exit 15 in Norwalk, Route 8 at exit 27A in Bridgeport, the Merritt and Wilbur Cross parkways at exit 38 (via the Milford Parkway) in Milford, and I-91 at exit 48 in New Haven. North (east) of I-91, the turnpike continues along the Connecticut shoreline, usually with less traffic. The six-lane highway is reduced to four lanes in Branford, interchanges with Route 9 at exit 69 in Old Saybrook, crosses the Connecticut River on the Raymond E. Baldwin Bridge and continues until the interchange with I-395 at exit 76 near the East Lyme–Waterford line. I-395 The turnpike