Interstate 664 (I-664) is an auxiliary Interstate Highway in the US state of Virginia. The Interstate runs from I-64 and I-264 in Chesapeake north to I-64 in Hampton. I-664 forms the west side of the Hampton Roads Beltway, a circumferential highway serving the Hampton Roads metropolitan area. The Interstate crosses Hampton Roads via the Monitor–Merrimac Memorial Bridge–Tunnel (MMMBT) between Suffolk and Newport News. I-664 is connected to the other major cities of the metropolitan area—Portsmouth, Norfolk, and Virginia Beach—by I-264. The Interstate also has a connection to Portsmouth through State Route 164 (SR 164) and to Suffolk via U.S. Route 13 (US 13), US 58, and US 460.
Route description
thumb|right|View north along I-664 between Terminal Avenue and US 60 in Newport News
I-664 begins at a full Y interchange with I-64 and I-264 that serves as the terminus of all three Interstates in the Bower's Hill section of the city of Chesapeake. I-64 heads southeast as a continuation of the Hampton Roads Beltway through Chesapeake while I-264 heads east toward Portsmouth and Norfolk. I-664 heads west as an eight-lane freeway that has a southbound-only exit ramp to US 13 and US 460 (Military Highway) and crosses over Military Highway and a Norfolk Southern Railway rail line. The Interstate has a cloverleaf interchange with Military Highway, which here carries US 58 in addition to US 13 and US 460. The interchange also provides access to U.S. Route 460 Alternate (US 460 Alt.), which follows US 58 east into Portsmouth. I-664 curves north as a four-lane freeway that crosses Goose Creek and has a diamond interchange with SR 663 (Dock Landing Road) and a cloverleaf interchange with SR 337 (Portsmouth Boulevard).
Just south of its partial cloverleaf interchange with SR 659 (Pughsville Road), I-664 crosses a rail line; a spur from that rail line heads north in the median of the freeway as the highway enters the city of Suffolk. The rail spur leaves the median and heads northeast toward Portsmouth just south of its interchange with SR 164 (Western Freeway) and US 17 (Bridge Road). SR 164 heads east toward downtown Portsmouth while US 17 heads northwest to the James River Bridge. There is no access from southbound I-664 to southbound US 17; that movement is made via the next interchange, a cloverleaf interchange with SR 135 (College Drive) that serves the satellite campus of Old Dominion University and the community of Churchland.