List of highways numbered 81

Route 81 or Highway 81 may refer to:

International

Asian Highway 81

European route E81

Canada

Mexico

Mexican Federal Highway 81

United States

Interstate 81

• Interstate 81E (former)
• Interstate 81S (former)

Interstate 81E (former)

Interstate 81S (former)

U.S. Route 81

Alabama State Route 81

Arizona State Route 81 (former)

Arkansas Highway 81

California State Route 81

Connecticut Route 81

Florida State Road 81

Georgia State Route 81

Idaho State Highway 81

Illinois Route 81

Iowa Highway 81

Kentucky Route 81

Louisiana Highway 81

Maryland Route 81 (former)

Massachusetts Route 81

M-81 (Michigan highway)

Trunk Highway 81 (Minnesota)

Minnesota State Highway 81 (pre-1988)

Missouri Route 81

Montana Highway 81

Nevada State Route 81 (former)

New Jersey Route 81

New Mexico State Road 81

New York State Route 81

Illinois Route 81

Illinois Route 81 is an east–west state road in northwest Illinois. It runs from U.S. Route 150 by unincorporated Lynn Center to Illinois Route 78 (Main Street) in Kewanee. This is a distance of 25.78 miles (41.49 km).

Route description

In Kewanee, Illinois 81 is 6th Street. It is not that far away from U.S. Route 34, which is 2nd street. In addition to Kewanee, Illinois 81 also serves Andover and Cambridge.

History

SBI Route 81 was established as Lynn Center to Kewanee. The routing of Illinois 81 has not changed since it was established.

References

Maryland Route 550

Maryland Route 550 (MD 550) is a state highway in the U.S. state of Maryland. The state highway runs 24.43 miles (39.32 km) from MD 26 in Libertytown north to Pen Mar Road in Fort Ritchie. MD 550 runs southeast–northwest across central Frederick County, connecting Fort Ritchie in the northeastern corner of Washington County and Libertytown with the towns of Thurmont and Woodsboro and the smaller communities of Creagerstown and Sabillasville. South of the highway's junction with U.S. Route 15 (US 15) in Thurmont, the state highway passes through the wide valley of the Monocacy River; to the north, the highway passes along the northern edge of Catoctin Mountain and crests South Mountain near Blue Ridge Summit, Pennsylvania.

MD 550 was built in two main sections. The highway from Thurmont to Blue Ridge Summit was constructed in the mid-1920s as Maryland Route 81. MD 81 was extended west to Fort Ritchie in the mid-1930s. MD 550 was constructed from Libertytown to Woodsboro in the mid to late 1930s. A second disjoint section of the state highway was built from Creagerstown to Thurmont in the late 1930s. The two segments of MD 550 were united when the designation was assigned to the highway between Woodsboro and Creagerstown in the mid-1950s. MD 550 was extended northwest from Thurmont to Fort Ritchie, assuming all of MD 81, in the late 1970s.