Interstate 64 in Virginia partially coincident with Hampton Roads Beltway
Interstate 64 (I-64) in the US state of Virginia runs east–west through the middle of the state from West Virginia to the Hampton Roads region, for a total of 299 miles (481 km). From the West Virginia state line to Chesapeake, it passes through the major cities of Lexington, Staunton, Charlottesville, the state capital of Richmond, Newport News, Hampton, and Norfolk. It is notable for crossing the mouth of the harbor of Hampton Roads on the Hampton Roads Bridge–Tunnel (HRBT), the first bridge–tunnel to incorporate artificial islands, concurrent with U.S. Route 60 (US 60). Also noteworthy is a section through Rockfish Gap, a wind gap in the Blue Ridge Mountains, which was equipped with an innovative system of airport-style runway lighting embedded into the pavement to aid motorists during periods of poor visibility due to fog or other conditions.Auxiliary routes
I-64 has four auxiliary routes, all of which are in the Hampton Roads Area:I-264—A bypass route serving the Virginia Beach Oceanfront, Downtown Norfolk, and most of Portsmouth.
 I-464—A connector route serving the western side of Chesapeake, Portsmouth, and Downtown Norfolk. It connects I-64 in Chesapeake to I-264 in Norfolk.
 I-564—A spur route serving Naval Station Norfolk.
 I-664—A bypass route serving Chesapeake, Suffolk, Newport News, and Hampton.Both of the bypass routes are shorter than the main leg for through traffic—I-664 is about 15 miles (24 km) shorter than the bypassed main leg while I-264 is about a mile (1.6 km) shorter than the main leg it bypasses.
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