Maryland Route 187

Maryland Route 187
Old Georgetown Road
Maryland Route 187 highlighted in red
Route information
Maintained by MDSHA
Length:	5.32 mi (8.56 km)
Existed:	1927 – present
Major junctions
South end:	MD 355 / MD 410 in Bethesda
	MD 188 in Bethesda I-495 in Bethesda I-270 in North Bethesda
North end:	MD 355 in North Bethesda
Location
Counties:	Montgomery
Highway system
Maryland highway system Interstate US State Scenic Byways ← MD 186 MD 188 →

MD 188 in Bethesda
I-495 in Bethesda

Maryland Route 187 (MD 187) is a state highway in the U.S. state of Maryland. Known as Old Georgetown Road, the highway runs 5.32 miles (8.56 km) 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.