officer Casimir Pulaski (1745-1779), who fought in the American Revolutionary War (1775-1783), which was constructed during the "Great Depression" years between 1935 and 1941. Old sections of US 40 became segments of MD 7 between 1938 and 1941 as portions of the new four-lane divided highway were opened from Baltimore to Elkton. Route description There are five mainline sections of MD 7: MD 7 (without suffix) runs from US 40 in Rosedale to US 40 and MD 159 in Aberdeen. MD 7A extends from US 40 west of Havre de Grace to US 40 and MD 155 in the city. MD 7B has a length of from Perry Point VA Medical Center in Perryville to US 40 east of Perryville. MD 7C runs from US 40 west of Charlestown east to US 40 and MD 279 west of Elkton. MD 7D spans from South Street east to US 40 within Elkton. Baltimore–Aberdeen MD 7 begins at an intersection with US 40 (Pulaski Highway) in Rosedale just east of the Baltimore city line. The highway heads north then immediately turns east at a three-way intersection; the west leg of the intersection is Old Philadelphia Road, which is unsigned MD 7BA. MD 7 heads northeast as a two-lane undivided street through a residential neighborhood with scattered businesses and industrial properties as well as a crossing of Redhouse Creek. The route intersects MD 588 (Golden Ring Road) and expands to a five-lane road with a center left-turn lane before meeting Interstate 695 (I-695, Baltimore Beltway) at a partial cloverleaf interchange. MD 7 continues east past The Centre at Golden Ring shopping center, crossing Stemmers Run before its intersection with Rossville Boulevard in Rossville. The state highway reduces to two lanes and continues northeast through residential subdivisions on the westbound side and industrial facilities on the eastbound side of the highway. MD 7 expands to a five-lane highway with a center left-turn lane as it approaches Campbell Boulevard in White Marsh. The road passes between a pair of shopping centers before crossing White Marsh Run. MD 7 continues northeast between industrial parks, intersecting Industrial Park Road (unsigned MD 7J) before reducing to two lanes and crossing MD 43 (White Marsh Boulevard). Westbound MD 43 is accessed via a ramp east of the overpass. The state highway crosses Honeygo Run and passes through a mix of forest and residential subdivisions, intersecting Cowenton Avenue and Joppa