Portal:Maryland roads
Maryland Roads
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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Interstate 895 (I-895) is an Interstate Highway in the U.S. state of Maryland. Known as the Harbor Tunnel Thruway, the highway runs 14.87 miles (23.93 km) between one junction with I-95 in Elkridge and another interchange with I-95 on the east side of Baltimore. I-895 is a toll road that crosses the Patapsco River estuary via the Baltimore Harbor Tunnel. The highway is designed for through traffic by having partial interchanges that require vehicles from almost all starting points to pass through the tunnel and the tunnel toll plaza, where a $3 toll is charged to passenger vehicles, before exiting the facility. The idea of a crossing of the Patapsco River south of downtown Baltimore has been studied since the 1930s. In the early 1950s, the Maryland State Roads Commission chose to construct a four-lane tunnel between the Canton and Fairfield neighborhoods of Baltimore and approach highways. The tunnel and approach highways were constructed beginning in 1955 and opened in November 1957, opening a bottleneck for Baltimore through traffic. The Harbor Tunnel Thruway was connected with the John F. Kennedy Memorial Highway in the early 1960s and the portion of I-95 south to Washington in the early 1970s and became congested. The congestion was not resolved until I-95 through Baltimore was completed when the eight-lane Fort McHenry Tunnel opened in November 1985. The transfer of most traffic to the new tunnel allowed the Baltimore Harbor Tunnel to be partially shut down for extensive maintenance in the late 1980s. (more...)
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Did you know?
- ...that the State Circle in Annapolis is designated Maryland Route 797 and has a circumference of 0.27 miles (0.43 km)?
- ...that Rolling Road in Baltimore County is named for the now obsolete tobacco hogsheds being rolled to the port down the road?
- ...that the first modern roundabout on the Maryland highway system was constructed at the intersection of Maryland Route 94 and Maryland Route 144 in Lisbon in 1993?
Related portals
Subcategories
Topics
- Maryland highway system, an overview of the numbered highway system
- Interstate Highways in Maryland
- U.S. Highways in Maryland
- State highways in Maryland
- Maryland Scenic Byways
- Pre-freeway turnpikes in Maryland
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Good articles
Baltimore–Washington Parkway- Interstate 70 in Maryland
- Interstate 81 in Maryland
- Interstate 97
- Interstate 195 (Maryland)
- Interstate 270 (Maryland)
- Interstate 370
- Interstate 695 (Maryland)
- Interstate 895
- Maryland Route 2
- Maryland Route 5
- Maryland Route 7
- Maryland Route 10
- Maryland Route 12
- Maryland Route 16
- Maryland Route 18
- Maryland Route 22
- Maryland Route 23
- Maryland Route 24
- Maryland Route 30
- Maryland Route 32
- Maryland Route 33
- Maryland Route 55
- Maryland Route 68
- Maryland Route 70
- Maryland Route 97
- Maryland Route 135
- Maryland Route 150
- Maryland Route 151
- Maryland Route 170
- Maryland Route 177
- Maryland Route 194
- Maryland Route 198
- Maryland Route 213
- Maryland Route 222
- Maryland Route 228
- Maryland Route 231
- Maryland Route 234
- Maryland Route 235
- Maryland Route 285
- Maryland Route 291
- Maryland Route 300
- Maryland Route 313
- Maryland Route 318
- Maryland Route 322
- Maryland Route 331
- Maryland Route 346
- Maryland Route 355
- Maryland Route 363
- Maryland Route 404
- Maryland Route 410
- Maryland Route 413
- Maryland Route 500
- Maryland Route 528
- Maryland Route 537
- Maryland Route 615
- Maryland Route 704
- Maryland Route 743
- Route 54 (Maryland–Delaware)
- U.S. Route 11 in Maryland
- U.S. Route 13 in Maryland
- U.S. Route 15 in Maryland
- U.S. Route 40 Alternate (Hagerstown–Frederick, Maryland)
- U.S. Route 40 Scenic
- U.S. Route 219 in Maryland
- U.S. Route 220 in Maryland
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