Maryland Route 108

Maryland Route 108

Maryland Route 108 marker

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.

2006 11 10 - 108@Brooke - EB 3.JPG


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.

2006 11 10 - 108@Brooke - WB.JPG

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.


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 Route 124.svg MD 124)
Mt Zion 10.17 Brookeville Rd. east - Brookeville (to MD Route 97.svg MD 97)
Olney 13.36 MD Route 97.svg Maryland Route 97 / Georgia Ave. - Cooksville, Silver Spring
14.37 Old Baltimore Rd. south - to MD Route 97.svg MD 97
Sandy Spring 14.79 MD Route 182.svg Maryland Route 182 south / Dr Bird Rd. - Norwood, Woodmont
Ashton 16.57 MD Route 650.svg Maryland Route 650 / New Hampshire Ave. - Brinklow, White Oak (to US 29.svg US 29) MD Route 650.svg south and MD Route 108.svg east are former route of US 29.svg;
MD Route 650.svg north is former route of MD Route 116.svg
17.40 Mink Hollow Rd. north - to Highland Rd.
Howard Highland 20.52 MD Route 216.svg Maryland Route 216 south / Highland Rd. - Scaggsville, Laurel (to I-95.svg I-95) MD Route 216.svg runs south of MD Route 108.svg; Highland Rd. continues north
Clarksville 22.44 Guilford Rd. south former route of MD Route 32.svg
22.64 Ten Oaks Rd. north - to Brighton Dam Rd. former route of MD Route 32.svg
22.73 MD Route 32.svg Maryland Route 32 / Patuxent Freeway - Sykesville, Columbia grade-separated interchange between routes; MD Route 32.svg freeway downgrades at interchange
23.48 Sheppard Ln. - to Folly Quarter Rd. Folly Quarter Rd. formerly designated MD Route 98.svg
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.svg US 40)
28.79 Columbia Rd. - to Old Annapolis Rd. (west) Columbia Rd. is former route of US 29.svg; MD Route 108.svg east of Columbia Rd. originally designated MD Route 539.svg
29.19 US 29.svg US 29 / Columbia Pike - Ellicott City, Baltimore (via I-70.svg I-70), Columbia Interchange
29.843 Thunder Hill Rd. south - to MD Route 175.svg MD 175
30.78 Phelps Luck Dr.-Centre Park Dr. - to MD Route 100.svg MD 100
Jonestown 31.23 MD Route 100.svg Maryland Route 100 - Gibson Island (to I-95.svg I-95) West plate.svgMD Route 100.svg is accessed via MD Route 104.svg; East plate.svgMD Route 100.svg is accessed directly
31.34 MD Route 104.svg Maryland Route 104 north / Waterloo Rd. - Ellicott City MD Route 104.svg north follows former route of MD Route 175.svg; MD Route 108.svg also follows former route of MD Route 175.svg
Columbia 32.28 Snowden River Parkway - to Broken Land Parkway, MD Route 100.svg MD 100, and MD Route 175.svg MD 175
32.59 Old Montgomery Rd. north - to MD Route 103.svg MD 103
33.30 Mayfield Ave. east - to MD Route 103.svg MD 103
33.56 Old Waterloo Rd. south former route of MD Route 175.svg before construction of I-95.svg
Waterloo 34.23 MD Route 175.svg Maryland Route 175 / Rouse Parkway-Waterloo Rd. - The Mall in Columbia, Jessup (to I-95.svg I-95) Eastern terminus


External links

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Maryland Route 97 — This article describes a Maryland state highway numbered 97. For the Interstate with the same number, see Interstate 97. MD 97 redirects here. For the Brazilian assault rifle, see IMBEL MD97 Maryland Route 97 Georgia Avenue, Roxbury Mills Road,… …   Wikipedia

  • Maryland Route 650 — New Hampshire Avenue …   Wikipedia

  • Maryland Route 32 — Route information …   Wikipedia

  • Maryland Route 104 — Waterloo Road …   Wikipedia

  • Maryland Route 100 — Paul T. Pitcher Memorial Highway …   Wikipedia

  • Maryland Route 216 — Seventh Street, Scaggsville Road …   Wikipedia

  • Maryland Route 175 — Annapolis Road, Jessup Road, Waterloo Road, Little Patuxent Parkway, Rouse Parkway …   Wikipedia

  • Maryland Route 124 — Route information …   Wikipedia

  • Maryland Route 182 — Layhill Road …   Wikipedia

  • Maryland Route 200 — Intercounty Connector …   Wikipedia