 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.