Maryland Route 189
Maryland Route 189 | ||||
|---|---|---|---|---|
| Falls Road | ||||
 Maryland Route 189 highlighted in red | ||||
| Route information | ||||
| Maintained by MDSHA | ||||
| Length | 5.05 mi[1] (8.13 km) | |||
| Existed | 1927–present | |||
| Major junctions | ||||
| South end |  MD 190 in Potomac | |||
 I-270 in Rockville | ||||
| North end | Great Falls Road / Maryland Avenue in Rockville | |||
| Location | ||||
| Country | United States | |||
| State | Maryland | |||
| Counties | Montgomery | |||
| Highway system | ||||
| ||||
Maryland Route 189 (MD 189) is a
Route description
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MD 189 begins at an intersection with MD 190 (River Road) in the village center of Potomac. Falls Road continues south as a county highway to
History
MD 189 was paved as an 18-foot-wide (5.5 m) macadam road from Montgomery Avenue (now MD 28) in Rockville to Potomac by 1921.[3][4] The highway was extended as a concrete road from Potomac to what is now MacArthur Boulevard near Great Falls in 1930.[5] MD 189 did not originally have an interchange with Washington National Pike (now I-270).[6] The highway's single-point urban interchange with I-270 was built in 1988.[7][8] As part of that project, MD 189 was expanded to a four-lane divided highway from south of Wootton Parkway to Maryland Avenue.[7] The latter intersection was placed in its present form at that time, replacing the seamless transition from Falls Road to Great Falls Road just north of I-270.[7][9] MD 189 was rolled back from Great Falls to its present southern terminus in Potomac in 1999.[10] The highway was removed from Great Falls Road in Rockville in 2000.[11]
Major intersections
The entire route is in Montgomery County.
| Location | mi[1] | km | Destinations | Notes | |
|---|---|---|---|---|---|
C&O Canal Scenic Byway ) | Southern terminus; continues south as a tourist route | ||||
| 3.34 | 5.38 |  Montrose Road to I-270 | |||
| Rockville | 4.87 | 7.84 | I-270 – Frederick, Washington | Single-point urban interchange; exit 5 on I-270 (Washington National Pike) | |
| 5.05 | 8.13 | Great Falls Road north / Maryland Avenue east / Potomac Valley Road south | Northern terminus | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
See also
Maryland Roads portal
References
- ^ a b c Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved 2013-09-01.
- Montgomery County (PDF).
- ^ Google (2013-09-01). "Maryland Route 189" (Map). Google Maps. Google. Retrieved 2013-09-01.
- ^ Maryland Geological Survey (1921). Map of Maryland: Showing State Road System and State Aid Roads (PDF) (Map). Baltimore: Maryland Geological Survey.
- ^ Uhl, G. Clinton; Bruce, Howard; Shaw, John K. (October 1, 1930). Report of the State Roads Commission of Maryland (1927–1930 ed.). Baltimore: Maryland State Roads Commission. p. 82. Retrieved 2013-09-01.
- ^ Maryland Geological Survey (1930). Map of Maryland Showing State Road System: State Aid Roads and Improved County Road Connections (Map). Baltimore: Maryland Geological Survey.
- ^ Maryland State Roads Commission (1961). Maryland: Official Highway Map (PDF) (Map). Baltimore: Maryland State Roads Commission.
- ^ a b c Maryland State Highway Administration (1989). Maryland: Official Highway Map (PDF) (Map). Baltimore: Maryland State Highway Administration.
- ^ Federal Highway Administration (2012). "NBI Structure Number: 100000150049010". National Bridge Inventory. Federal Highway Administration.
- ^ Rockville, MD quadrangle (Map) (1986 ed.). 1:24,000. 7 1/2 Minute Series (Topographic). United States Geological Survey.
- ^ Highway Information Services Division (December 31, 1999). Highway Location Reference. Maryland State Highway Administration. Retrieved 2013-09-01.
- Montgomery County (PDF).
- ^ Highway Information Services Division (December 31, 2000). Highway Location Reference. Maryland State Highway Administration. Retrieved 2013-09-01.
- Montgomery County (PDF).
External links
