Baltimore–Washington Parkway, Transportation parkway between Baltimore and Washington DC, United States
The Baltimore-Washington Parkway is a 29-mile limited-access highway that winds through Maryland's rolling landscape with gentle hills and dense forests. The road connects the two cities through a network of long curves and wooded sections.
Built between 1947 and 1954, it was Maryland's first limited-access divided highway. The National Park Service and Bureau of Public Roads partnered to complete this pioneering project.
The section named after Congresswoman Gladys Noon Spellman honors her service to Maryland's 5th district. This naming reflects how the region marks the contributions of political figures important to its history.
Large trucks are not permitted on the section south of MD 175, though buses and limousines can travel through. Plan for longer driving time on this winding route, particularly when weather conditions are poor.
The road was designed with a protective corridor ranging from 400 to 800 feet wide, shielding the area from urban sprawl. These generous margins preserve forests and meadows throughout the entire route.
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