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Maryland Route 187
Maryland Route 187 (MD 187) is a state highway in the U.S. state of Maryland. Known as Old Georgetown Road, the highway runs from MD 355 and MD 410 in Bethesda north to MD 355 in North Bethesda. MD 187 is a four- to six-lane highway that runs parallel to MD 355 through suburban areas of southern Montgomery County. The highway was paved through Bethesda by 1910. The remainder of MD 187 was constructed in the mid- to late 1920s. The highway was relocated at its northern end and expanded to a divided highway over most of its length in the late 1960s. MD 187's interchanges with Interstate 270 and I-495 were built in the late 1950s and early 1960s, respectively; the former interchange was reconstructed in the early 2000s.
==Route description==
MD 187 begins at an intersection with MD 355 (Wisconsin Avenue) and westbound MD 410 (East–West Highway) next to the Bethesda station of the Washington Metro in downtown Bethesda. The state highway heads northwest as a two-lane one-way street to Woodmont Avenue. Southbound MD 187 traffic is required to turn north or south onto Woodmont Avenue. Woodmont Avenue, which becomes a southbound one-way street at the intersection, leads to Montgomery Lane, which provides access to MD 355 and eastbound MD 410 (Montgomery Avenue). MD 187 heads northwest from Woodmont Avenue as a four-lane highway with center turn lane that passes through a five-way intersection with MD 188 (Wilson Lane), Arlington Road, and St. Elmo Avenue and leaves downtown Bethesda. The state highway veers north and becomes a six-lane divided highway north of Huntington Parkway at Suburban Hospital, which sits opposite the southern end of the National Institutes of Health campus. MD 187 intersects several entrances to the federal campus and passes to the east of the tiny village of Oakmont at its junction with Cedar Lane.〔〔
MD 187 enters North Bethesda at its diamond interchange with I-495 (Capital Beltway). The state highway intersects Democracy Boulevard, a county highway that heads west past Walter Johnson High School and the Montgomery Mall. North of Democracy Boulevard, MD 187 meets I-270 (Eisenhower Memorial Highway) at an extended diamond interchange whose ramps also connect with Rockledge Boulevard. The highway intersects Tuckerman Lane north of I-270 and continues northeast toward the White Flint area of North Bethesda. At its intersection with Executive Boulevard, MD 187 curves to the east and reaches its northern terminus at MD 355 (Rockville Pike) just north of the White Flint Metro station.〔〔
MD 187 is a part of the National Highway System as a principal arterial for its entire length.〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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