Route 100 West

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Maryland Route 100 West
Maryland 100 begins as an expressway with two at-grade intersections from its half diamond interchange with Maryland 177 (Mountain Road). The first signal governs the intersection of Maryland 100 with Magothy Beach Road. The second signal resides at the crossroads of the expressway with Maryland 607 (Magothy Bridge Road). Maryland 607 travels a short distance between Woods Road and Maryland 173 (Fort Smallwood Road). Photo taken 10/10/04.
Maryland 100 upgrades into a four-lane freeway west of Maryland 607 (Magothy Beach Road). On-ramps join the freeway from Raynor Boulevard (Exit 20) and Catherine Avenue (Exit 19). There are no exits however between Maryland 607 and the merge with Maryland 10 (Arundel Expressway). Pictured here are guide signs directly travelers to Maryland 10 north and Maryland 100 west at the freeway merge at Pasadena. There is no access to Maryland 10 southbound. Photo taken 10/10/04.
Maryland Route 10 North Maryland Route 100 West
Maryland 100 (Paul T. Pitcher Memorial Highway) westbound merges with Maryland 10 (Arundel Expressway) briefly at the Anne Arundel County suburb of Pasadena. The two routes share approximately one half mile of pavement before going their separate ways to Southgate and Margate respectively. Photo taken 10/10/04.
Traffic interests to Interstate 695 (Baltimore Beltway) should continue north along the Arundel Expressway to its end at Glen Burnie. Maryland 100 turns westward and meets Maryland 177 & 2 (Ritchie Highway) and Interstate 97 within the next four miles. The freeway continues west from there to Baltimore-Washington International Airport and Howard County. Photo taken 10/10/04.
Maryland 100 west
Westbound reassurance marker of Maryland 100 posted as the freeway leaves the cloverleaf interchange with Baltimore-Washington Parkway and passes by Parkway Center industrial park. Photo taken 06/20/12.
Maryland 100 enters a diamond interchange (Exit 8) with Coca Cola Drive ahead of the Howard County line. Photo taken 06/20/12.
Maryland 100 expands to four lanes briefly for the Exit 8 off-ramp to Coca-Cola Drive. Dorsey Road west from near Exit 8 becomes Maryland 103, an 8.29-mile route winding northwest parallel to MD-100 through Howard County. Photo taken 06/20/12.
Exit 8 departs Maryland 100 west for Coca Cola Drive connects the freeway with parallel Dorsey Road (former Maryland 176) to the south and Park Circle Drive to the north. This stretch of road is unsigned Maryland 100 segment "M". Photo taken 06/20/12.
2 photos
2 photos
Spanning Deep Run, drivers leave Anne Arundel County and enter Howard County. Photos taken 06/20/12.
The Exit 7 ramp to Dorsey Station (MARC commuter rail) quickly follows the county line. This interchange does not provide access to Dorsey Road (Maryland 103). Photo taken 06/20/12.
U.S. 1 (Washington Boulevard) meets Maryland 100 next at a six-ramp parclo interchange (Exit 6). Interstate 95 (Exits 5A/B) follows in one mile. Photo taken 08/27/05.
Reassurance shield posted for Maryland 100 ahead of the Exit 6 off-ramp to U.S. 1. U.S. 1 travels southwest to Waterloo and Jessup and northeast to Elkridge, primarily as a local route parallel to Interstate 95. Photo taken 08/27/05.
Interstate 95 and Maryland 100 come together just northwest of Wesley Grove and U.S. 1. Interstate 95 constitutes an eight-lane freeway between the Baltimore and Capital Beltways. Photo taken 07/02/10.
The right lane carries all traffic in unison to Interstate 95 via Exits 5A/B. Maryland 100 continues northwest to the Howard County suburbs east of Columbia otherwise. Photo taken 07/02/10.
Exit 5 departs Maryland 100 west for Interstate 95. Interstate 95 north continues three miles to the split with Interstate 895 (Harbor Tunnel Thruway) north into Baltimore. Photo taken 08/27/05.
2 photos
2 photos
Exit 5 partitions into single lane ramps for Interstate 95. Southbound Interstate 95 heads 10 miles to Laurel and 16 miles to the merge with Interstate 495. Photos taken 07/02/10.
Maryland 103 follows Meadowridge Road northwest from Dorsey Road at U.S. 1 to a diamond interchange with Maryland 100 (Exit 4). Photo taken 08/27/05.
Exit 4 utilizes roundabouts between the freeway ramps of Maryland 100 and Meadowridge Road. Maryland 103 parallels Maryland 100 northwest to Font Hill and Montgomery Knolls. Photo taken 08/27/05.
Snowden River Parkway meanders southwest from Maryland 100 (Exit 3) to Long Reach and Owen Brown. Photo taken 08/27/05.
Maryland 100 westbound parts ways with the Exit 3 off-ramp at the Old Montgomery Road under crossing. Snowden River Parkway intersects Maryland 108 (Waterloo Road) nearby and ends at Broken Land Parkway near Maryland 32 and Guilford. Photo taken 08/27/05.
Interchange sequence sign listing the final three interchanges of Maryland 100 west. Photo taken 08/27/05.
Maryland 108 continues parallel to Maryland 100 along Waterloo Road to Maryland 104 at Jonestown. Maryland 108 turns west onto Old Annapolis Road to Columbia as Maryland 104 begins and carries Waterloo Road north to Exit 2. Photo taken 08/27/05.
Motorists leaving Maryland 100 via Exit 2 enter a roundabout with Maryland 104 (Waterloo Road) adjacent to the freeway. Maryland 104 travels 1.14 miles between Maryland 108 and 103 (Montgomery Road). Photo taken 08/27/05.
Entering the final 1.50 miles of Maryland 100 west. The next exit entails a left side ramp onto Executive Park Drive (Exit 1B). Photo taken 08/27/05.
Executive Park Drive spurs west from Maryland 100 to a town home community and residential subdivision beyond the adjacent office parks. Exit 1C joins Maryland 100 east with Centre Park Drive nearby. Motorists using Exit 1B must use Columbia 100 Parkway to make that connection, which is signed as "Exit 1C" from Maryland 100 west. Photo taken 08/27/05.
Exit 1B consists of a left turn onto Executive Park Drive by the eastbound Maryland 100 overpass. Centre Park Drive links Maryland 100 east via a similar tight-ramp configuration to Maryland 108 (Old Annapolis Road) at Columbia Hills. Photo taken 08/27/05.
Long Gate Parkway (unsigned Maryland 100 Segment "J") connects Maryland 100 (Exit 1A) with adjacent Maryland 103 (Montgomery Road). Photo taken 08/27/05.
Maryland 100 prepares to split into ramps for U.S. 29 (Columbia Pike) ahead of the Exit 1A ramp departure to Long Gate Parkway. Photo taken 08/27/05.
Long Gate Parkway provides access to area retail and McAlpine, St. Johns Village and other suburbs west of Columbia Pike. The Exit 1A parclo interchange includes access to Meadowbrook Lane at Meadowbrook Park to the west. Photo taken 08/27/05.
U.S. 29 constitutes a freeway as well, traveling north to Ellicott City and south past the Columbia Town Center. Photo taken 08/27/05.
Maryland 100 west defaults onto U.S. 29 north to U.S. 40 (Baltimore National Pike) and Interstate 70 (Exit 25). A left side ramp carries drivers onto U.S. 29 (Columbia Pike) south to Columbia, Scaggsville, and Washington, DC. Photo taken 08/27/05.

Photo Credits:

10/10/04, 08/27/05, 07/02/10, 06/20/12 by AARoads

Connect with:
Interstate 95
Interstate 97
U.S. 1
U.S. 29
Route 10 - Arundel Expressway
Route 170
Route 295 - Baltimore-Washington Parkway

Page Updated 03-31-2011.