Virginia State Route 37

State Route 37 (SR 37) is a primary state highway in the U.S. state of Virginia. Known as Winchester Bypass, it forms a western bypass of Winchester, connecting to Interstate 81 (I-81) at both ends. Although the road is a freeway, neither I-81 connection is freeway standard; the south end (exit 310) is a diamond interchange with two traffic signals, while, at the north end, drivers must use a short piece of U.S. Route 11 (US 11) to connect with I-81 at exit 317. In addition to local access, the highway connects to US 50 and US 522, two major highways that lead west and northwest into West Virginia and north to I-70 at Hancock, Maryland. An eastern bypass, known locally as "Route 37 East" has been proposed in statewide and local plans to complete the loop.

Route description
Route 37 begins at an intersection with Hillandale Road (SR 847), a local frontage road along the east side of I-81, and Tasker Road (SR 642), which leads southeast to US 522 near Armel. It immediately crosses I-81 at exit 310, a diamond interchange with two traffic signals on SR 37, and then becomes a freeway, soon junctioning US 11 (Valley Pike) with a partial cloverleaf. The next interchange is a diamond at Cedar Creek Grade (SR 622), and SR 37 reaches its approximate midpoint at US 50 (Northwestern Pike), another diamond. A trumpet interchange completed in 2001 connects to the Winchester Medical Center, and the final diamond is with US 522 (Frederick Pike) at the northwestern corner. SR 37 ends at a partial Y interchange with US 11 (Martinsburg Pike), at which SR 37 traffic can only access US 11 north and only traffic from US 11 south can access SR 37, although a northbound exit to Cives Lane was added in about 2000 to allow SR 37 traffic to access US 11 south. About 1/2 mile (1 km) of US 11 is a divided highway, connecting SR 37 with I-81 at exit 317.

History
Route 37 was defined as the proposed Winchester By-Pass by 1963, and was included in the statewide Arterial Network when it was created in 1964. When I-81 opened past Winchester in November 1965, it included an interchange south of Winchester, taking traffic between I-81 and US 11 along a short connecting road. The north half of the bypass, from US 50 west of Winchester north and east to US 11 north of the city, opened in the late 1960s, and the semicircle was completed in the late 1970s, with the linking of Route 37 to the existing I-81/US 11 connection. A new bridge carrying southbound SR 37 over I-81 was built, but otherwise the diamond interchange was not modified. The only change to the major bypass since it was constructed has been a new trumpet interchange serving the Winchester Medical Center; construction began in September 2000 and was completed in November 2001. A single ramp from SR 37 north to Cives Lane, allowing traffic at the north end of the bypass to access US 11 south, was built in about 2000.