Interstate 395 (I-395) in Washington DC and Virginia is a spur route of I-95 that begins at an interchange with I-95 in Springfield and ends at an interchange with US Route 50 (US 50) in Northwest Washington, DC. It passes underneath the National Mall near the US Capitol and ends at a junction with US 50 at New York Avenue, roughly north of the 3rd Street Tunnel. Despite its proximity to I-395 in Maryland, the route is unrelated and unconnected. I-395 is known by three different names over its various segments. The Virginia portion is part of the larger Shirley Highway that continues southward on I-95 beyond the terminus of I-395. In the District of Columbia, it is known as the Southwest Freeway from the 14th Street bridges to the Southeast Freeway interchange (I-695) and the Center Leg or Center Leg Freeway from the Southeast Freeway interchange to New York Avenue. The Southwest and Center Leg freeways are collectively denominated as the Dwight D. Eisenhower Freeway. Route description |- | | |- | | |- |Total | |} Virginia The intersection where I-395, I-95, and the I-495 (Capital Beltway) meet is called the Springfield Interchange. Unofficially, this interchange is referred to as the "Mixing Bowl". This moniker causes confusion, because the intersection of I-395, Washington Boulevard, and State Route 244 (SR 244; Columbia Pike) several miles north was historically known by that name and continues to be recognized by the Virginia Department of Transportation (VDOT) as such. I-395 contains a third roadway: reversible, barrier-separated Virginia high-occupancy toll (HOT) lanes with their own entrances and exits, also known locally as the "express lanes", between South Eads Street near the Pentagon in Arlington County and SR 610 (Garrisonville Road) in Stafford County. During morning and evening rush hour, traffic on this roadway flows in the direction of rush-hour traffic. This third roadway was built as a single-lane busway, the first in the US, before being expanded and converted to high-occupancy vehicle (HOV) use. A 2007 survey found that during the morning rush hour, the HOV lanes carry about 65 percent of travelers on I-395 (61,000 commuters), including 32,000 in transit busses and 29,000 in private vehicles with two or more people. The other 33,000 commuters (35 percent of total users) drove alone. I-395 and US 1 cross the Potomac River from Virginia to Washington DC on three parallel four-lane bridges, together known