Maryland Route 478

Maryland Route 478
Knoxville Road
Route information
Maintained by MDSHA
Length:	1.88 mi[1] (3.03 km)
Major junctions
West end:	MD 180 in Knoxville
East end:	Florida Avenue in Brunswick
Location
Counties:	Frederick
Highway system
Maryland highway system Interstate • US • State • Minor • Former • Turnpikes ← MD 477 MD 479 →

Maryland Route 478 (MD 478) is a state highway in the U.S. state of Maryland. Known as Knoxville Road, the state highway runs 1.88 miles (3.03 km) from MD 180 in Knoxville east to Florida Avenue in Brunswick. MD 478 was constructed as MD 70 in the late 1920s. In 1950, MD 70 was replaced with an extended MD 464. MD 478 was assigned to Knoxville Road after MD 464 was rerouted to its present terminus in 1968.

Route description

MD 478 begins at an intersection with MD 180 (Jefferson Pike) in Knoxville. Westbound MD 180 provides access to westbound US 340 toward Harpers Ferry and Charles Town. MD 478 heads east as a two-lane highway through a forested area parallel to the Potomac River, Chesapeake and Ohio Canal, and CSX's Metropolitan Subdivision. The state highway crosses several streams that flow into the Potomac River. After passing through the community of New Addition, MD 478 enters the town of Brunswick, where the state highway ends at Florida Avenue. The roadway continues east as Potomac Street, the main street of Brunswick that passes through the Brunswick Historic District. Potomac Street leads to Maple Street, which heads south to the historic Brunswick train station on MARC's Brunswick Line.^[1][2] All of MD 478, Potomac Street east from MD 478 to Maple Street, and Maple Street south to the train station are part of the National Highway System as an intermodal connector.^[1][3]

History

MD 478 was originally constructed as MD 70 starting in 1926.^[4][5] The highway was paved from Brunswick halfway to Knoxville in 1927 and completed in 1928.^[6][7] The MD 70 designation was removed in 1950 when MD 464 was extended through Brunswick to Knoxville; MD 70 was reused for Roscoe Rowe Boulevard in Annapolis starting in 1954.^[8][9] MD 464 was removed from Knoxville Road in 1968 when the state highway was rerouted on Souder Road to its present terminus at MD 17 and MD 79.^[10] MD 478 was assigned to Knoxville Road by 1971.^[11]

Junction list

The entire route is in Frederick County.

Location	Mile[1]	Destinations	Notes
Knoxville	0.00	MD 180 (Jefferson Pike) to US 340 west – Jefferson, Charles Town	Western terminus
Brunswick	1.88	Potomac Street east / Florida Avenue north	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

1. ^ ^{a b c d} "Highway Location Reference: Frederick County" (PDF). Maryland State Highway Administration. 2009. http://www.marylandroads.com/Location/2009_FREDERICK.pdf. Retrieved 2011-03-27. 
2. ^ Google, Inc. Google Maps – Maryland Route 478 (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&source=s_d&saddr=MD-478+E%2FKnoxville+Rd&daddr=Knoxville+Rd%2FW+Potomac+St&hl=en&geocode=FQUWWAIdVuxe-w%3BFWLkVwIdAmJf-w&mra=ls&sll=39.313814,-77.633579&sspn=0.003744,0.009645&ie=UTF8&t=h&z=15. Retrieved 2011-03-27. 
3. ^ Federal Highway Administration (August 2003) (PDF). National Highway System: Maryland (Map). http://www.fhwa.dot.gov/planning/nhs/maps/md/md_Maryland.pdf. Retrieved 2011-03-28. 
4. ^ Report of the State Roads Commission of Maryland. 1924-1926. Baltimore: Maryland State Roads Commission. January 1927. p. 84. http://www.archive.org/details/annualreportsofs1924mary. Retrieved 2011-03-27. 
5. ^ Maryland State Roads Commission. General Highway Map: State of Maryland (Map) (1939 ed.). 
6. ^ Maryland Geological Survey. Map of Maryland: Showing State Road System and State Aid Roads (Map) (1927 ed.). 
7. ^ Maryland Geological Survey. Map of Maryland: Showing State Road System and State Aid Roads (Map) (1928 ed.). 
8. ^ Maryland State Roads Commission. Maryland: Official Highway Map (Map) (1950 ed.). 
9. ^ Maryland State Roads Commission. Maryland: Official Highway Map (Map) (1954 ed.). 
10. ^ Maryland State Roads Commission. Maryland: Official Highway Map (Map) (1968 ed.). 
11. ^ Maryland State Roads Commission. Maryland: Official Highway Map (Map) (1971 ed.). 

External links

• MD 478 @ MDRoads.com