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PortalsTechnologyTransportRoadsU.S. RoadsMaryland Roads

Maryland Roads

  • P:MDRD
  • The Maryland highway system consists of roads in the US state of Maryland that are maintained by the Maryland State Highway Administration (SHA). The three main systems of roads that comprise the Maryland highway system are Interstate Highways, US Highways, and Maryland state highways. Other roads in Maryland are maintained by individual cities and counties.

    Interstate Highways and US Highways are assigned at the national level. Interstate Highways are numbered in a grid—even-numbered routes are east–west routes (the lowest numbers are along Mexico and the Gulf of Mexico), and odd-numbered routes are north–south routes (with the lowest numbers along the Pacific Ocean). US Highways are also numbered in a grid—even numbered for east–west routes (with the lowest numbers along Canada) and odd numbered for north–south routes (with the lowest numbers along the Atlantic Ocean). For this reason, mainline (two-digit) Interstate Highways in Maryland all have numbers between 81 and 97 for north-south routes and between 68 and 70 for east-west routes. In addition, mainline US Highways all have numbers between 1 and 29 for north-south routes and between 40 and 50 for east-west routes. Three-digit Interstate and U.S. Highways, also known as "child routes," are branches off their main one- or two-digit "parents". The Interstate and US Highways are generally maintained by the SHA, with some toll roads maintained by the Maryland Transportation Authority (MDTA) and some roads maintained by municipalities, including most roads in the city of Baltimore. Interstate 95 (I-95) and U.S. Route 40 (US 40) are the longest examples in the state.

    Maryland state highways are the other state highways maintained by the SHA. Some state highways are maintained by municipalities while the Maryland Route 200 (MD 200) toll road is maintained by the MDTA. All roads maintained by the SHA are assigned route numbers, ranging from through routes passing through multiple counties to minor service roads that are less than a mile long. Many of the shorter state highways are unsigned. Some routes consist of multiple segments with letter suffixes; these suffixes are unsigned with the exception of MD 835A. There are two geographical clusters for Maryland state highways. The first, ranging from 2 to 37, consists of longer intercounty routes, with 2 to 6 in Southern Maryland, 7 to 10 originally skipped, 12 to 21 on the Eastern Shore, and 22 to 37 running west from Central Maryland to Western Maryland. The second cluster consists of routes from 38 to 378, running across the state from Garrett County in the west to Worcester County in the east. Numbers above 378 are assigned randomly.

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    Selected article

    View north along MD 12 at US 113 Bus. in Snow Hill
    View north along MD 12 at US 113 Bus. in Snow Hill

    Maryland Route 12 is a state highway on the Eastern Shore in the U.S. stateofMaryland. The route runs 30.63 mi (49.29 km) from the Virginia border south of Stockton, Worcester County, where it continues into Virginia as State Route 679, north to Main Street in the city of SalisburyinWicomico County. The route is known as Snow Hill Road for most of its length and passes mostly through areas of woods and farms as well as the communities of Stockton, Girdletree, and Snow Hill. MD 12 intersects several roads including Maryland Route 366 in Stockton, U.S. Route 113 and U.S. Route 113 Business in Snow Hill, Maryland Route 354 in Indiantown, and U.S. Route 13 near Salisbury. Portions of MD 12 near Snow Hill and Stockton existed as unnumbered state roads by 1910. When the first state highways in Maryland were designated by 1927, MD 12 was assigned to run from Stockton north to Salisbury. By 1940, the route was extended south to the Virginia border and a small incomplete portion between Snow Hill and Salisbury was finished. (more...)

    Selected picture

    I-270 near the exit for Montrose Road
    I-270 near the exit for Montrose Road
    Credit: Användare:Jumpy
    I-270 near the exit for Montrose Road

    Did you know?

    • ...that the bridge that carried Maryland Route 32 across the Patapsco RiverinSykesville between 1963 and 2004 was the longest of only three aluminum triangular box beam girder bridges constructed in the United States?
  • ... that much of the current alignment of Maryland Route 413 follows a former Pennsylvania Railroad line into Crisfield?
  • ... that the Baltimore–Washington Parkway was once planned to be a part of Interstate 295, but never did because not enough funds were available to upgrade the road to Interstate Highway standards?
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    Nominations and votes for selected articles are always needed. Anyone can nominate an article, and anyone can vote for an article. Additional selected pictures and Did you know? hooks are welcome to be nominated as well. Feel free to improve articles about Maryland roads, we would like to get as many articles to Good ArticleorFeatured Article status as possible.

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    This page was last edited on 28 February 2023, at 15:05 (UTC).

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