Maryland Route 235

Maryland Route 235
Three Notch Road
Maryland Route 235 highlighted in red
Route information
Maintained by MDSHA
Length	30.63 mi[1] (49.29 km)
Existed	1927–present
Major junctions
South end	MD 5 in Ridge
Major intersections	MD 489 in Park Hall MD 712 in Hermanville MD 246 in Lexington Park MD 237 in California MD 4 in California MD 245 in Hollywood MD 472 in Oakville MD 247 in Oakville MD 6 in Oraville
North end	MD 5 near Mechanicsville
Location
Country	United States
State	Maryland
Counties	St. Mary's
Highway system
Maryland highway system Interstate US State Scenic Byways
← MD 234 → MD 236

Maryland Route 235 (MD 235) is a state highway in the U.S. state of Maryland. Known as Three Notch Road, the state highway runs 30.63 miles (49.29 km) between its southern intersection with MD 5 in Ridge and its northern intersection with MD 5 near Mechanicsville. While the southern part of the state highway is a two-lane undivided rural road, the northern part of MD 235 is a four- to six-lane divided highway connecting Naval Air Station Patuxent River (NAS Patuxent River) and the Washington, D.C., metro area in conjunction with MD 5. Three Notch Road has been the main highway between northern St. Mary's County and Point Lookout since the colonial era. The highway was reconstructed as the modern MD 235 between 1923 and 1938. The state highway was then completely rebuilt during World War II to serve the recently established NAS Patuxent River. Between 1960 and 1985, MD 235 was converted into a four-lane divided highway to the west and north of the military base. In the face of increasing activity at the base, the highway adjacent to NAS Patuxent River was expanded to six lanes in the early 2000s.