U.S. Route 29 in Maryland

U.S. Route 29
29th Infantry Division Memorial Highway
US 29 highlighted in red
Route information
Maintained by MDSHA
Length	25.86 mi[1] (41.62 km)
Existed	1934–present
Major junctions
South end	US 29 at District of Columbia line near Silver Spring
Major intersections	MD 97 / MD 384 in Silver Spring I-495 near Four Corners MD 193 in Four Corners MD 650 in White Oak MD 200 Toll in Fairland MD 198 in Burtonsville MD 32 near Columbia MD 100 in Ellicott City US 40 in Ellicott City I-70 in Ellicott City
North end	MD 99 in Ellicott City
Location
Country	United States
State	Maryland
Counties	Montgomery, Howard
Highway system
United States Numbered Highway System List Special Divided Maryland highway system Interstate US State Scenic Byways
← MD 28 → MD 30

U.S. Route 29 (US 29) is a north–south United States Numbered Highway that runs for 1,043.3 miles (1,679.0 km) from Pensacola, Florida, to the western suburbs of Baltimore, Maryland. In the U.S. state of Maryland, US 29 is a major highway that emerges from Washington DC and runs north into eastern Montgomery County, stretching over 25.86 miles (41.62 km) through the state and terminating at Maryland Route 99 (MD 99) outside of Ellicott City. It serves the cities of Columbia and Ellicott City and provides the westernmost north–south route between Washington DC and Baltimore.

US 29 in Maryland was a late addition to the U.S. Numbered Highway System fabricated in 1926, beginning along a corridor once known as MD 27. Since its redesignation, it has been realigned and upgraded many times, now containing freeway and expressway sections.