construction of the route near Lake Waterford Road severed the original road between Baltimore and Annapolis: the Baltimore-Annapolis Boulevard, signed in part as MD 648. The physical road ends at a pair of dead ends on either side of the right-of-way; MD 648 follows Lake Waterford Road between Baltimore-Annapolis Boulevard and MD 177 before rejoining its original path. The route was to be part of the Baltimore Outer Beltway, a proposed freeway that would have encircled parts of the Greater Baltimore area and provide a route parallel to the Baltimore Beltway. MD 100 represents the major portion that was built; US 29 between MD 100's terminus and US 29's own northern terminus at Maryland Route 99, four miles (6 km) in length, is another portion. The Outer Beltway was projected beyond MD 99 to run through Howard and Baltimore Counties and intersect MD 140, Interstate 83, US 1, and Interstate 95 before terminating at US 40 northeast of Baltimore. Exit list Auxiliary routes MD 100 has fourteen auxiliary routes: five in Howard County, eight in Anne Arundel County, and one in both counties. MD 100-J is a segment of Long Gate Parkway from Meadowbrook Lane and a park and ride exit through MD 100's exit 1A to the end of state maintenance where the road continues as Long Gate Parkway. It is located in Ellicott City, Howard County. MD 100-L is the designation for a section of the access road from the Dorsey MARC station to MD 100 at exit 7 in Dorsey, Howard County. MD 100-M is the designation for a segment of Coca-Cola Drive from MD 103 to Park Circle Drive in both Howard and Anne Arundel Counties. The route has an interchange with MD 100 at its exit 8. MD 100-N is a state-maintained segment of Wright Road in Hanover, Anne Arundel County. The road was realigned as a result of the construction of MD 100's exit 9. MD 100-O is a segment of old Wright Road in Hanover, Anne Arundel County. The route runs from MD 100-N to a point just before Old Wright Road dead ends. MD 100-P is a state-maintained section of Harmans Road over MD 100 in Harmans, Anne Arundel County. It is long. MD 100-Q is a section of Queenstown Road over MD 100 in Severn, Anne Arundel County. MD 100-R consists of a segment of WB&A Road over MD 100 in