Maryland State Highway 182
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Maryland Route 182 (MD 182) is a
state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...
in the U.S. state of
Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...
. Known for most of its length as Layhill Road, the highway runs from MD 97 in Glenmont north to MD 108 in Olney. MD 182 connects the northeastern Montgomery County communities of Glenmont, Layhill, Norwood,
Sandy Spring Sandy Spring is an Unincorporated area, unincorporated community in Montgomery County, Maryland, Montgomery County, Maryland, United States. Geography Sandy Spring's boundaries are roughly defined as Brooke Road and Dr. Bird Road to the north ...
, and Olney. The highway was constructed in the early 1920s. MD 182 was expanded to a four-lane
divided highway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
from Glenmont to the site of its interchange with MD 200 in the late 1980s and early 1990s.


Route description

MD 182 begins at an acute intersection with MD 97 (
Georgia Avenue Georgia Avenue is a major north-south artery in Northwest Washington, D.C. and Montgomery County, Maryland. Within the District of Columbia and a short distance in Silver Spring, Maryland, Georgia Avenue is also U.S. Route 29. Both Howard Univers ...
) in Glenmont. The highway heads north as Layhill Road, a six-lane divided highway that passes the
Glenmont station Glenmont is a Washington Metro station in Montgomery County, Maryland on the Red Line. It is the northern terminus of the Red Line. The station, located at Georgia Avenue and Layhill Road, serves the suburbs of Glenmont and Aspen Hill. ...
at the eastern terminus of the
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's Red Line. MD 182 reduces to four lanes north of Glenallen Avenue. The highway crosses Bel Pre Creek and intersects Bel Pre Road and Bonifant Road at the hamlet of Layhill; Bonifant Road leads to the
National Capital Trolley Museum The National Capital Trolley Museum (NCTM) is a 501(c)(3) nonprofit organization that operates historic street cars, trolleys and trams for the public on a regular schedule. Located in Montgomery County, Maryland, the museum's primary mission is ...
. North of Layhill, MD 182 meets MD 200 (Intercounty Connector) at a
diamond interchange A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road. Design The freeway itself is grade-separated from the minor road, one crossing the other over a bridge. Approaching the ...
and intersects the eastern terminus of a section of the
ICC Trail Maryland Route 200 (MD 200), also known as the Intercounty Connector or ICC, is an , six-lane toll road in the U.S. state of Maryland. A controlled-access highway, it connects Gaithersburg in Montgomery County and Laurel in Prince George's Co ...
before it reduces to a two-lane undivided road just south of its bridge across Buckhorn Branch of the
Northwest Branch Anacostia River Northwest Branch Anacostia River is a free-flowing stream in Montgomery County and Prince George's County, Maryland. It is a tributary of the Anacostia River, which flows to the Potomac River and the Chesapeake Bay. Course The headwaters of th ...
, which parallels the highway to the east. The highway temporarily expands to a four-lane divided highway at its intersection with Norbeck Road, which heads west as MD 28. MD 182 continues to the hamlet of Norwood, where the highway intersects Norwood Road. The road continues straight as Ednor Road and MD 182 turns north onto Norwood Road. North of the
Sandy Spring Friends School Sandy Spring Friends School (SSFS) is a progressive, coeducational, college preparatory Quaker school serving students from preschool (age 3) through 12th grade. SSFS offers an optional 5- and 7- day boarding program in the Middle School and Uppe ...
, Norwood Road veers north as a county highway toward Sandy Spring. MD 182 continues along Dr. Bird Road, which carries the state highway northwest to its northern terminus at MD 108 (Olney Sandy Spring Road) opposite the
Olney Theatre Center for the Arts Located in Olney, Maryland, the Olney Theatre Center offers a diverse array of professional productions year-round that enrich, nurture, and challenge a broad range of artists, audiences and students. One of two state theaters of Maryland, Olney ...
on the eastern edge of Olney. MD 182 is a part of the National Highway System as a principal arterial from its southern terminus at Glenmont to MD 28 near Norwood.


History

Layhill Road and Norwood Road were once part of the Clarksville Pike, which originally connected
Ellicott City Ellicott City is an unincorporated community and census-designated place in, and the county seat of, Howard County, Maryland, United States. Part of the Baltimore metropolitan area, its population was 65,834 at the 2010 census, making it the mo ...
and Clarksville. In 1889, it was extended to Ashton and
Unity Unity may refer to: Buildings * Unity Building, Oregon, Illinois, US; a historic building * Unity Building (Chicago), Illinois, US; a skyscraper * Unity Buildings, Liverpool, UK; two buildings in England * Unity Chapel, Wyoming, Wisconsin, US; a h ...
. The road was maintained by the Union Turnpike Company, which also operated the Brookeville Turnpike and a turnpike from Olney to Ashton. The road was included as part of the
Maryland State Roads Commission The Maryland State Highway Administration (abbreviated MDOT SHA or simply SHA) is the state transportation business unit responsible for maintaining Maryland's numbered highways outside Baltimore City. Formed originally under authority of the Ge ...
's original state road system in 1909. However, by 1915, the highway was deemed not to form a necessary part of the main arterial system. MD 182 was paved as a
macadam Macadam is a type of road construction, pioneered by Scottish engineer John Loudon McAdam around 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the o ...
road between 1921 and 1923. The state highway designation was removed from Norwood Road and placed on Dr. Bird Road north of the Norwood–Dr. Bird intersection in 1977. MD 182 was expanded to a divided highway from MD 97 to just north of Bel Pre Road and Bonifant Road in 1989. The divided highway section was extended to just south of Buckhorn Branch in 1991. MD 182 was expanded to a divided highway at the MD 28 intersection in 2001 and 2002. The highway's interchange with MD 200 was under construction in 2010 and opened in 2011.


Junction list


Auxiliary route

MD 182A is the designation for Old Layhill Road, a one-lane service road that parallels the northbound side of MD 182 from north of Glenallen Avenue to Briggs Road in Glenmont.


See also

*


References


External links

{{Attached KML, display=title,inline
MDRoads: MD 182
Maryland Route 182 Maryland Route 182 (MD 182) is a state highway in the U.S. state of Maryland. Known for most of its length as Layhill Road, the highway runs from MD 97 in Glenmont north to MD 108 in Olney. MD 182 connects the northeastern Montgomery County ...
182 Year 182 ( CLXXXII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sura and Rufus (or, less frequently, year 935 ''Ab urbe condita'') ...