Maryland Route 108

Maryland Route 108
Route information
Maintained by MDSHA
Length: 34.23 mi[1][2] (55.09 km)
Major junctions
West end: MD 27 at Damascus
 

MD 97 at Olney
MD 32 at Clarksville

US 29 near Columbia
East end: MD 175 in Elkridge
Highway system

Maryland highway system
Interstate • US • State • Minor • Former • Turnpikes

← MD 107 MD 109 →

Maryland Route 108 is a suburban state highway in the central part of the U.S. state of Maryland, starting in Damascus and ending near Columbia.

Contents

Route description

Maryland Route 108 takes a very sinuous route through the Maryland exurbs located in between Washington, D.C. and Baltimore. It begins at Maryland Route 27 in Damascus, located in northern Montgomery County. It then proceeds to sweep south through farmland towards Olney where it intersects with MD 97, also known as Georgia Avenue.

It then travels east towards the Patuxent River, passing the historic communities of Sandy Spring and Ashton, where it crosses MD 650 New Hampshire Avenue.

After crossing the Patuxent into Howard County, MD 108 trends back north to Clarksville, where it crosses MD 32.

It then trends east again, forming the northern border of the planned community of Columbia and intersecting with US 29, a major north–south thoroughfare. The road then takes its final curve south, ending at Maryland Route 175 just west of Interstate 95 in the vicinity of Guilford.

The road generally follows a two-lane format. At major intersections, such as those at MD 32 and MD 29, it expands to four lanes. The stretch of the road around Olney is the only exception to this rule, forming four lanes for several miles due to the commercial nature of the area.

History

The section between the route's current interchange with US 29 in Columbia and its intersection with Maryland Route 650 (New Hampshire Avenue) in Ashton is the former route of US 29 prior to the start of construction of the planned community of Columbia, which began in the late 1960s; the route forms the northern boundary of the town. Before the diversion of US 29, MD 108 ended in Ashton at an intersection with the U.S. route.

The section of MD 108 between MD 104 (in Ellicott City) and the route's eastern terminus at MD 175 was a former alignment of MD 175 before the construction of 175's current route through the heart of Columbia.

The segment of MD 108 between US 29 and MD 104 was once designated Maryland Route 539.

Before the construction of the Patuxent Freeway between MD 108 and US 29, MD 32 once overlapped MD 108 through Clarksville for a short distance before turning onto a new alignment. The western end of the concurrency was at Guilford Rd., while the eastern end is now Exit 20 from MD 32.

Junction list

County Location Mile Destinations Notes
Montgomery Damascus 0.00 MD 27 (Ridge Road) – Mount Airy, Germantown Western terminus
0.15 MD 124 south (Woodfield Road) – Woodfield, Washington Grove
Bootjack 2.95 Long Corner Road – Long Corner
3.32 Annapolis Rock Road – Patuxent River State Park
Etchinson 4.44 MD 650 east (Damascus Road) – Unity, Rachel Carson Conservation Park
Laytonsville 7.40 Sundown Road / Brink Road
Claysville 9.46 Fieldcrest Rd. west - Laytonsville Golf Course (to MD 124)
Mt Zion 10.17 Brookeville Rd. east - Brookeville (to MD 97)
Olney 13.36 Maryland Route 97 / Georgia Ave. - Cooksville, Silver Spring
14.37 Old Baltimore Rd. south - to MD 97
Sandy Spring 14.79 Maryland Route 182 south / Dr Bird Rd. - Norwood, Woodmont
Ashton 16.57 Maryland Route 650 / New Hampshire Ave. - Brinklow, White Oak (to US 29) south and east are former route of ;
north is former route of
17.40 Mink Hollow Rd. north - to Highland Rd.
Howard Highland 20.52 Maryland Route 216 south / Highland Rd. - Scaggsville, Laurel (to I-95) runs south of ; Highland Rd. continues north
Clarksville 22.44 Guilford Rd. south former route of
22.64 Ten Oaks Rd. north - to Brighton Dam Rd. former route of
22.73 Maryland Route 32 / Patuxent Freeway - Sykesville, Columbia grade-separated interchange between routes; freeway downgrades at interchange
23.48 Sheppard Ln. - to Folly Quarter Rd. Folly Quarter Rd. formerly designated
25.79 Homewood Rd.-Harpers Farm Rd. - Howard County General Hospital, Howard Community College
27.45 Centennial Ln. - Centennial Park, Ellicott City (to US 40)
28.79 Columbia Rd. - to Old Annapolis Rd. (west) Columbia Rd. is former route of ; east of Columbia Rd. originally designated
29.19 US 29 / Columbia Pike - Ellicott City, Baltimore (via I-70), Columbia Interchange
29.843 Thunder Hill Rd. south - to MD 175
30.78 Phelps Luck Dr.-Centre Park Dr. - to MD 100
Jonestown 31.23 Maryland Route 100 - Gibson Island (to I-95) is accessed via ; is accessed directly
31.34 Maryland Route 104 north / Waterloo Rd. - Ellicott City north follows former route of ; also follows former route of
Columbia 32.28 Snowden River Parkway - to Broken Land Parkway, MD 100, and MD 175
32.59 Old Montgomery Rd. north - to MD 103
33.30 Mayfield Ave. east - to MD 103
33.56 Old Waterloo Rd. south former route of before construction of
Waterloo 34.23 Maryland Route 175 / Rouse Parkway-Waterloo Rd. - The Mall in Columbia, Jessup (to I-95) Eastern terminus

See also

References

  1. ^ Maryland State Highway Administration (2008). "Highway Location Reference: Montgomery County" (PDF). http://apps.roads.maryland.gov/KeepingCurrent/performTrafficStudies/dataAndStats/hwyLocationRef/2008_hlr_all/co15.pdf. Retrieved 2010-06-30. 
  2. ^ Maryland State Highway Administration (2008). "Highway Location Reference: Howard County" (PDF). http://apps.roads.maryland.gov/KeepingCurrent/performTrafficStudies/dataAndStats/hwyLocationRef/2008_hlr_all/co13.pdf. Retrieved 2010-04-21. 

External links

Maryland State Highways
U.S. Routes
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