Maryland Route 100

This article is about the current Maryland Route 100. For the former highway, see Maryland Route 100 (former).

Maryland Route 100 marker

Maryland Route 100
Paul T. Pitcher Memorial Highway

Maryland Route 100 highlighted in red
Route information
Maintained by MDSHA
Length: 22.38 mi[1] (36.02 km)
Existed: 1970 – present
Major junctions
West end: US 29 in Ellicott City
 
East end: MD 177 in Jacobsville
Location
Counties: Howard, Anne Arundel
Highway system
MD 99MD 101

Maryland Route 100 (MD 100) is a major eastwest highway connecting U.S. Route 29 (US 29) in Ellicott City (just north of Columbia) and MD 177 (Mountain Road) in Pasadena. MD 100 also connects to Interstate 95 (I-95), US 1, the Baltimore-Washington Parkway (MD 295), and I-97. The highway connects Howard County to the west with Anne Arundel County and the Chesapeake Bay to the east. MD 100 also provides access to the Baltimore-Washington International Airport (BWI) and the Arundel Mills shopping mall.

The eastern section of MD 100 in Anne Arundel County is known as the Paul T. Pitcher Memorial Highway. The name comes in dedication to Paul T. Pitcher, an Anne Arundel County executive, who originally conceived the highway.[2]

Route description

MD 100 eastbound approaching split with MD 10 in Pasadena

The route begins as a six-lane divided expressway at US 29 near Ellicott City. There are then interchanges with MD 108, MD 104, Snowden River Parkway and MD 103.

At the junction with I-95, the road narrows to four lanes. Then MD 100 intersects with US 1 followed by an exit for the Dorsey MARC station. It then crosses the Baltimore-Washington Parkway.

MD 100 then intersects with MD 170 (Telegraph Road) where the road becomes 6 lanes. Then the road junctions with Interstate 97 near Hanover and reduces down to 4 lanes before crossing MD 2. Between Glen Burnie and Jacobsville, MD 100 serves as a bypass for MD 177, and has interchanges with MD 10 and MD 607.

The road ends by merging back into MD 177.

History

Maryland Route 100 began in the 1970s as two separate roads, both having the MD 100 designation. The first was known as the Mountain Road Extension, stretching between Governor Ritchie Highway and the old Maryland Route 3, now Interstate 97. The second was built as a short spur between the newly constructed Interstate 95 and US 1 in Elkridge, Maryland.[3] The eastern section, originally known as the Mountain Road Bypass, was constructed east of Ritchie Highway in the late 1970s. MD 100 was completed west of I-97 to I-95, thereby connecting the two roads, in 1994, but it was not completed in its entirety to US 29 until November 1998. A portion of the route between Exit 1B-C and Exit 2 was constructed earlier than the rest as an at-grade boulevard, on the right-of-way of the future eastbound lanes; this section was eventually upgraded.[4]

The 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 is part of the Baltimore Outer Beltway, a 3/4 circular beltway designed to 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

CountyLocationmi[1]kmExitDestinationsNotes
HowardEllicott City0.000.00 US 29 (Columbia Pike) to I-70 WashingtonWestern terminus; US 29 Exit 22
0.681.091ALong Gate ParkwayUnsigned MD 100J; no westbound entrance
1.542.481BExecutive Park DriveUnsigned MD 100V; no eastbound entrance; signed as exits 1B and 1C westbound
1.993.201CCentre Park DriveRight-in/right-out interchange eastbound
2.453.942 MD 104 (Waterloo Road) / MD 108 (Old Annapolis Road)
Columbia3.655.873Snowden River ParkwayUnsigned MD 100W
Elkridge4.517.264 MD 103 (Meadowridge Road)
5.689.145 I-95 Baltimore, WashingtonI-95 Exit 43; split into exits 5A (south) and 5B (north)
6.4710.416 US 1 (Washington Boulevard) Laurel, ElkridgeSplit into exits 6A (south) and 6B (north) eastbound
Dorsey7.1211.467 Dorsey MARC StationAccess road is unsigned MD 100L
Anne ArundelHanover7.6912.388Coca-Cola DriveUnsigned MD 100M
8.3913.509 MD 295 (BaltimoreWashington Parkway) Baltimore, WashingtonSplit into exits 9A (south) and 9B (north)
9.4315.1810 MD 713 (Arundel Mills Boulevard) Hanover, Stoney Run DistrictSplit into exits 10A (south) and 10B (north) eastbound
Severn11.4318.3911 MD 170 (Telegraph Road) Linthicum, OdentonSingle-point urban interchange
Glen Burnie13.9422.4313 I-97 Baltimore, AnnapolisI-97 Exit 14; split into exits 13A (south) and 13B (north)
14.5323.3814 MD 174 (Quarterfield Road)Westbound exit, eastbound entrance
15.8925.5715Oakwood Road
Pasadena17.1027.5216 MD 2 (Ritchie Highway) / MD 177 (Mountain Road) to MD 10 north Pasadena, Glen BurnieSplit into exits 16A (south) and 16B (north); westbound exit 16B leads to MD 177
17.6928.47 MD 10 north (Arundel Expressway) to I-695 BaltimoreWestbound exit, eastbound entrance; west end of concurrency with MD 10
18.4329.66 MD 10 south (Arundel Expressway) to MD 2 Severna ParkEastbound exit, westbound entrance; east end of concurrency with MD 10
20.1232.3819Catherine AvenueEastbound exit, westbound entrance
20.9633.7320Edwin Raynor Boulevard to MD 173Eastbound exit, westbound entrance
Jacobsville21.5034.60 MD 607 (Magothy Bridge Road)At-grade signalized intersection
21.8035.08Magothy Beach RoadAt-grade signalized intersection
22.3836.02 MD 177 east (Mountain Road) Gibson IslandEastern terminus; no access from eastbound MD 100 to westbound MD 177
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Auxiliary routes

MD 100 has fourteen auxiliary routes: five in Howard County, eight in Anne Arundel County, and one in both counties.

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved 2012-11-11.
  2. "Front Cover" (PDF). The Maryland Asphalt Paver. The Maryland Asphalt Assoc. Spring–Summer 1999. p. 2. Archived from the original (PDF) on 19 November 2003. Retrieved 8 January 2012.
  3. US Department of Transportation (1989). MD-100 Extension, US-29 to I-95, Howard County: Environmental Impact Statement.

Route map: Bing / Google

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