State Route 168 is a primary state highway in the South Hampton Roads region of the U.S. state of Virginia. It runs from the border with North Carolina (where it continues as North Carolina Highway 168 towards the Outer Banks) through the independent cities of Chesapeake and Norfolk where it ends in the Ocean View area near the Hampton Roads Bridge-Tunnel. SR 168 consists of three sections with different characteristics. From North Carolina to the junction with Interstate 64 and Interstate 464, SR 168 is mostly built to freeway standards as a major road into North Carolina; part of it — the Chesapeake Expressway — is a toll road. From I-64 north into downtown Norfolk, SR 168 is a local road; I-464 carries most through traffic. The rest of SR 168, from downtown Norfolk north to Ocean View, is Tidewater Drive, an arterial road with some interchanges, built to carry traffic to the Hampton Roads Bridge-Tunnel before Interstate 64 opened. SR 168 was originally constructed in the 1930s on the north side of Hampton Roads as Merrimack Trail, mainly as a bypass of U.S. Route 60 from Newport News past Williamsburg (now State Route 143). It was extended across Hampton Roads (via the Newport News-Pine Beach (Norfolk) Ferry) in the mid-1940s, but did not move onto its current alignment to North Carolina until 1957, when the Hampton Roads Bridge-Tunnel opened. As the new freeway (Interstate 64) opened past Williamsburg, SR 168 was shifted to it; it was truncated to its current extent around 1980. History The SR 168 designation was applied in the 1933 renumbering to three individual roadways: State Route 529 (northwest from Newport News towards Lee Hall), State Route 532 (Newport News to Hampton via Shell Road), and State Route 533 (King Street from Rip Rap Road — then State Route 513 — south into Hampton). Another piece, from Hampton east on Pembroke Avenue towards Buckroe Beach, was added to the state highway system in 1932, and was extended to Buckroe Beach in 1936. In the 1930s, SR 168 was extended northwest to State Route 53 (now State Route 30) near Barhamsville. It used Jefferson Avenue and 35th Street in Newport News and Shell Road, Newport News Avenue, Back River Road, Rip Rap Road, King Street, and Pembroke Avenue in Hampton; see State Route 143 (Barhamsville to Hampton) and State Route 351 (Hampton to Buckroe Beach) for more