Maryland Route 390

Maryland Route 390
16th Street
Maryland Route 390 highlighted in red
Route information
Maintained by MDSHA
Length	1.09 mi[1] (1.75 km)
Existed	1960–present
Major junctions
South end	16th Street at the District of Columbia boundary in Silver Spring
Major intersections	MD 384 in Silver Spring MD 410 in Silver Spring
North end	MD 97 in Silver Spring
Location
Country	United States
State	Maryland
Counties	Montgomery
Highway system
Maryland highway system Interstate US State Scenic Byways
← MD 388 → MD 392

Maryland Route 390 (MD 390) is a state highway in the U.S. state of Maryland. The highway runs 1.09 miles (1.75 km) from 16th Street at the District of Columbia boundary north to MD 97 within Silver Spring. MD 390 is a six-lane divided highway continuation of 16th Street into Maryland and serves as a western bypass of downtown Silver Spring. The portion of the highway south of MD 410 was constructed around 1930. MD 390 was extended north to MD 97 as a divided highway in the late 1950s.