Portal:Maryland Roads

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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 consists 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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MD 198 eastbound at Fourth Street in Laurel

Maryland Route 198 (MD 198) is a state highway in the U.S. state of Maryland. The highway runs 14.14 miles (22.76 km) from MD 650 near Spencerville east to the entrance of Fort George G. Meade beyond its junction with MD 32. MD 198 connects Laurel in far northern Prince George's County with the northeastern Montgomery County communities of Spencerville and Burtonsville and Maryland City and Fort Meade in western Anne Arundel County. The highway is a four-to-six-lane divided highway between U.S. Route 29 (US 29) in Burtonsville and the Baltimore–Washington Parkway in Maryland City. MD 198 was constructed from US 1 in Laurel west toward Burtonsville in the 1920s. Another section was built in Spencerville in the late 1920s; the two segments were connected in the mid-1950s. The Laurel–Fort Meade road was built as MD 602 for military access purposes in the mid-1940s, replacing MD 216. MD 198 was relocated through Laurel and extended east along MD 602 to Fort Meade in the early 1960s. The first divided highway portion of the highway was part of a relocation at the Interstate 95 (I-95) interchange in the early 1970s. The divided highway was extended west to Burtonsville and through Maryland City in the 1980s. MD 198's eastern end was extended to MD 32 in the early 1990s and then moved again for its interchange with that highway in the early 2000s. The Maryland State Highway Administration (MDSHA) plans to expand the remaining two-lane portions of MD 198 to a divided highway. (more...)

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