List of U.S. Highways in Maryland

The following is a list of U.S. Highways in Maryland. There are currently 14 U.S. Highways that exist entirely or partially in the U.S. state of Maryland. Seven of these are primary U.S. Highways while seven are auxiliary U.S. Highways that may or may not be related to one of the primary U.S. Highways. The longest primary U.S. Highway in Maryland is U.S. Route 40 (commonly abbreviated US 40) at 221.31 miles (356.16 km). The shortest primary U.S. Highway in Maryland is US 11 at 12.83 miles (20.65 km). The longest auxiliary U.S. Highway in Maryland is US 301 at 123.30 miles (198.43 km). The shortest auxiliary U.S. Highway in Maryland is US 522 at 2.37 miles (3.81 km). All U.S. Highways are maintained by the Maryland State Highway Administration except for the portions that run through Baltimore, Hagerstown, and Cumberland. Maryland has five former U.S. Highways; those five are shaded in dark gray in the list.

United States Numbered Highways of the Maryland highway system
Standard route signs in Maryland
Highway names
US HighwaysU.S. Route X (US X)
Special Routes:
  • U.S. Route X Alternate (US X Alt.);
  • U.S. Route X Business (US X Bus.);
  • U.S. Route X Scenic (US X Scenic);
  • U.S. Route X Truck (US X Truck)
System links

Mainline routes
Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
US 1 80.25129.15 US 1 in Washington, D.C.US 1 at the Pennsylvania state line near Rising Sun 01926-01-011926[2]current
US 11 12.8320.65 US 11 at the West Virginia state line in WilliamsportUS 11 at the Pennsylvania state line near Hagerstown 01926-01-011926[2]current
US 13 42.4868.36 US 13 at the Virginia state line near Pocomoke CityUS 13 at the Delaware state line in Delmar 01926-01-011926[2]current
US 15 37.8560.91 US 15 at the Virginia state line at Point of RocksUS 15 at the Pennsylvania state line near Emmitsburg 01927-01-011927[3]current
US 29 29.5147.49 US 29 in Washington, D.C.MD 99 in Ellicott City 01934-01-011934[4]current
US 40 221.31356.16 US 40 at the Pennsylvania state line near Keysers RidgeUS 40 at the Delaware state line in Elkton 01926-01-011926[2]current
US 48 81.09130.50 West Virginia state line near FriendsvilleI-70 / US 40 / US 522 in Hancock 01974-01-011974[5]01991-01-011991[6] Replaced by I-68
US 50 150.06241.50 US 50 at the West Virginia state line near Redhouse
US 50 in Washington, D.C.		US 50 at the West Virginia state line near Gorman
MD 378 / MD 528 in Ocean City		 01926-01-011926[2]current Two segments; length is sum of segments[1]
US 111 32.2451.89 US 1 in BaltimorePennsylvania state line at Maryland Line 01926-01-011926[2]01963-01-011963[7] Replaced by MD 45, I-695, and I-83
US 113 37.8460.90 US 13 in Pocomoke CityUS 113 at the Delaware state line at Bishop 01926-01-011926[2]current
US 140 38.5061.96 US 1 in BaltimorePennsylvania state line near Littlestown, PA 01926-01-011926[2]01979-01-011979[8] Replaced by MD 140 and MD 97
US 213 58.2793.78 US 50 in Wye MillsUS 40 in Elkton 01926-01-011926[2]01972-01-011972[9] Replaced by MD 213
US 219 48.4077.89 US 219 at the West Virginia state line near RedhouseUS 219 at the Pennsylvania state line near Grantsville 01926-01-011926[2]current
US 220 27.3544.02 US 220 at the West Virginia state line in McCooleUS 220 at the Pennsylvania state line near Dickens 01926-01-011926[2]current
US 222 3.605.79 US 1 at ConowingoUS 222 at the Pennsylvania state line near Conowingo 01930-01-011930[10]current
US 240 36.7559.14 Washington, D.C.I-70 / US 40 in Frederick 01926-01-011926[2]01973-01-011973[11] Replaced by MD 355 and I-270
US 301 122.85197.71 US 301 at the Virginia state line near NewburgUS 301 at the Delaware state line near Warwick 01939-01-011939[12]current
US 340 16.9927.34 US 340 at the Virginia state line near Harpers Ferry, WVUS 15 / US 40 in Frederick 01926-01-011926[2]current
US 522 2.373.81 US 522 at the West Virginia state line in HancockI-70 / US 522 at the Pennsylvania state line in Hancock 01930-01-011930[10]current

Special routes
Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes

US 1 Alt.		 2.093.36 US 1 Alternate in Washington, D.C.US 1 in Hyattsville 01946-01-011946[13]current Alternate route via Bladensburg

US 1 Alt.		 3.926.31 US 1 in ArbutusUS 1 in Baltimore 01949-01-011949[14]current Alternate route via Halethorpe
US 1 Bus. 6.9011.10 US 1 / MD 147 at BensonUS 1 in Hickory 01966-01-011966[15]current Business route through Bel Air
US 13 Bus. 2.483.99 US 13 in Pocomoke CityUS 13 / MD 364 in West Pocomoke 01994-01-011994current Business route through Pocomoke City
US 13 Bus. 8.1413.10 US 13 near FruitlandUS 13 / US 50 in Salisbury 01983-01-011983[16]current Business route through Fruitland and Salisbury
US 15 Bus. 2.343.77 US 15 near EmmitsburgUS 15 in Emmitsburg 01967-01-011967[17]current Business route through Emmitsburg

US 40 Alt.		 31.8051.18 US 40 at Keyser's RidgeI-68 / US 40 / US 220 / MD 639 in Cumberland 01983-01-011983[16]current Alternate route via Grantsville and Frostburg

US 40 Alt.		 22.9736.97 Potomac Street in HagerstownUS 40 in Frederick 01952-01-011952[18]current Alternate route via Boonsboro and Middletown

US 40 Scenic		 9.5015.29 Fifteen Mile Creek Road in Green Ridge State ForestI-68 / US 40 near Hancock 01965-01-011965[19]current Scenic route across Town Hill and Sideling Hill; length only includes state-maintained section in Allegany County
US 50 Bus. 6.8811.07 US 50 near SalisburyUS 13 / US 50 in Salisbury 02002-01-012002[20]current Business route through Salisbury
US 113 Bus. 2.483.99 US 113 near Snow HillUS 113 in Snow Hill 01997-01-011997[21]current Business route through Snow Hill

See also
  •  Maryland roads portal

References
  1. Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved 2012-10-06.
  2. Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: U.S. Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via University of North Texas Libraries.
  3. Maryland Geological Survey (1927). Map of Maryland: Showing State Road System and State Aid Roads (Map). Baltimore: Maryland Geological Survey.
  4. Maryland State Roads Commission (1934). Map of Maryland Showing State Road System (Map). Baltimore: Maryland State Roads Commission.
  5. Maryland State Highway Administration (1974). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.
  6. Maryland State Highway Administration (1991). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.
  7. Maryland State Roads Commission (1963). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  8. Maryland State Highway Administration (1979). Maryland: Official Highway Map (Map) (1979–1980 ed.). Baltimore: Maryland State Highway Administration.
  9. Maryland State Highway Administration (1972). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.
  10. Maryland Geological Survey (1930). Map of Maryland Showing State Road System: State Aid Roads and Improved County Road Connections (Map). Baltimore: Maryland Geological Survey.
  11. Maryland State Highway Administration (1973). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.
  12. Maryland State Roads Commission (1939). General Highway Map: State of Maryland (Map). Baltimore: Maryland State Roads Commission.
  13. Maryland State Roads Commission (1946). Maryland: Official Highway Map (Map) (1946–1947 ed.). Baltimore: Maryland State Roads Commission.
  14. Maryland State Roads Commission (1949). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  15. Maryland State Roads Commission (1966). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  16. Maryland State Highway Administration (1983). Maryland: Official Highway Map (Map) (1983–1984 ed.). Baltimore: Maryland State Highway Administration.
  17. Maryland State Roads Commission (1967). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  18. Maryland State Roads Commission (1952). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  19. Maryland State Roads Commission (1965). Maryland: Official Highway Map (Map). Baltimore: Maryland State Roads Commission.
  20. Highway Information Services Division (December 31, 2002). Highway Location Reference. Maryland State Highway Administration. Retrieved 2014-07-09.
  21. Maryland State Highway Administration (1997). Maryland: Official Highway Map (Map). Baltimore: Maryland State Highway Administration.
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