List of state highways in Maryland shorter than one mile (2–699)
The following is a list of state highways in Maryland shorter than one mile in length with route numbers between 2 and 699. Most of these highways act as service roads, old alignments of more prominent highways, or connectors between one or more highways. Many of these highways are unsigned and have multiple segments with the same number. Several of these highways have their own articles; those highways are summarized here and a link is provided to the main article. This list does not include highways where at least one highway of that number is at least one mile in length. All highways at least one mile in length have their own article. The highways shorter than one mile with the same number are covered in the main article for the highway.
MD 79
Maryland Route 79 is the designation for the state-maintained portion of Petersville Road, which runs from MD 17 and MD 464 in Rosemont north to a bridge over the Little Catoctin Creek on the northern border of Rosemont. MD 79 begins at a four-way intersection on the boundary between the town of Brunswick to the south and the village of Rosemont to the north. Petersville Road continues south as MD 17 into Brunswick; MD 17 also heads west along Burkittsville Road. The eastern leg of the intersection is MD 464. MD 79 heads northeast as a two-lane undivided road through a residential area where the highway meets the eastern end of Rosemont Drive, which is unsigned MD 871G. The state highway comes to its northern terminus at a bridge over Little Catoctin Creek on the northern border of Rosemont. Past the northern terminus, Petersville Road continues north as a county road toward MD 180 in Petersville.Petersville Road was constructed as a wide macadam-surfaced highway from Jefferson Pike south to Brunswick in 1916. When state highways were first numbered in Maryland in 1927, the portion of Petersville Road south of what is now Rosemont Drive became MD 33; MD 33 became MD 17 in 1940. Petersville Road from Rosemont north to Petersville was later marked as MD 79. MD 79's modern bridge over Little Catoctin Creek was built in 1941 after the previous bridge was carried away by a flood that year. MD 79 was extended south to its current southern terminus in 1968 when MD 17 was relocated to its present course through Rosemont and MD 464 was extended west along Souder Road to its present terminus to form the fourth leg of that intersection. On October 31, 2016, the northern terminus of MD 79 was cut back from MD 180 to its current location when the section of Petersville Road between the Little Catoctin Creek bridge on the northern border of Rosemont and MD 180 was transferred to county maintenance.
MD 169
Maryland Route 169 is the designation for Maple Road, a state highway in Linthicum in northwestern Anne Arundel County. The highway begins at Hammonds Ferry Road and heads east as a two-lane undivided road through a residential area. MD 169 has a grade crossing of MTA Maryland's Baltimore Light RailLink just prior to its intersection with MD 170. The highway reaches its eastern terminus at MD 648.MD 172
Maryland Route 172 is the unsigned designation for Arundel Cove Avenue, a route that runs from railroad tracks in Orchard Beach in Anne Arundel County north to MD 173 in the city of Baltimore. This state highway once served as the entrance to the United States Coast Guard Yard. The yard is now accessed from MD 173 just to the west of MD 172. MD 172 was constructed by 1930.MD 181
Maryland Route 181 is the unsigned designation for the Sixth Street drawbridge over the Spa Creek in Annapolis, Anne Arundel County. The route was designated in 2009 and is long.MD 219
Maryland Route 219 is the designation for Ninth Street, a two-lane undivided road which runs from the intersection of US 219 and MD 135 north to High Street within Oakland in Garrett County. MD 219 is state-maintained from US 219 to Green Street and maintained by the town of Oakland from there to High Street. The state highway follows the southernmost part of the alignment of the future Oakland Bypass. The route was first posted circa 2022 after previously being unsigned.MD 221
Maryland Route 221A is the unsigned designation for a section of Ritchie–Marlboro Road around that highway's dumbbell interchange with I-95/I-495 at Exit 13 in Largo, Prince George's County.MD 250
Maryland Route 250A is the unsigned designation for Old Virginia Road, which runs from US 13 Business east to the intersection of US 13 and US 113 within Pocomoke City in Worcester County. The state highway is the southernmost part of the second alignment of US 113 in Pocomoke City. MD 250A was assigned shortly after US 113 was rolled back to terminate at the Pocomoke City Bypass, US 13, in the 1960s.MD 268
Maryland Route 268, which is known as North Street, runs from Main Street north to MD 279 within the town of Elkton in eastern Cecil County. The highway begins at Main Street, which is one-way eastbound, in downtown Elkton; the parallel street that allows westbound traffic and provides access to Union Hospital and MD 213 is High Street one block to the north. MD 268 heads north as a two-lane undivided road and passes a block to the east of the Elkton Armory. The highway veers slightly to the west to cross over Amtrak's Northeast Corridor railroad line. The old alignment, Old North Road, consists of pair of stubs on the south and north sides of the tracks with unsigned designations MD 727 and MD 727A, respectively. MD 268 continues north between Big Elk Creek to the east and Elkton Middle School to the west before reaching its northern terminus at MD 279, which heads west as Newark Avenue and east as Elkton Road toward Newark, Delaware.MD 268 is the old alignment of MD 279 within Elkton. North Street was paved as a concrete road by 1921. The original North Street overpass of the Pennsylvania Railroad was constructed between 1930 and 1934. The bypassed street stubs to the closed grade crossing were designated MD 727 and MD 727A in 1949. MD 268 was assigned to North Avenue after MD 279 was extended west to US 40 to bypass the center of Elkton in 1968. The highway's current bridge across the Amtrak Northeast Corridor was constructed between 1986 and 1988.
MD 284
Maryland Route 284 is the designation for Hemphill Street, which runs between two intersections with MD 285 in Chesapeake City in southern Cecil County. MD 284 heads north from MD 285 one block north of the Chesapeake & Delaware Canal in the town of Chesapeake City. Immediately after leaving the town limits, the two-lane undivided highway curves to the west and reaches its northern terminus at MD 285. MD 285 heads north to a junction with MD 213.Hemphill Street was part of the original Cecilton–Elkton highway passing through Chesapeake City that was designated for improvement by the Maryland State Roads Commission in 1909. The highway through Chesapeake City was paved as a concrete road in 1915. At that time, the main highway entered Chesapeake City from the north along Hemphill Street, crossed the Chesapeake & Delaware Canal on a one-lane bridge, turned west and crossed Back Creek on a wooden bridge, turned south onto Bohemia Street in South Chesapeake City, turned west onto Third Street, and turned south onto George Street to leave the town.
In the 1920s, the U.S. Army Corps of Engineers widened, straightened, and deepened the canal. As part of their work, the agency constructed a vertical lift bridge across the canal. Between 1924 and 1926, the Maryland State Roads Commission constructed approaches to the new bridge on both sides of the expanded canal, eliminating two narrow and dangerous bridges and four right-angle turns in Chesapeake City. The new route along George Street and Lock Street, which became part of US 213 in 1927 and is now MD 285 and MD 537, entirely bypassed what is now MD 284. MD 284 was resurfaced with bituminous concrete in 1976, and its junction with MD 285 was changed from a tangent to the present orthogonal intersection in 1982.
MD 308
Maryland Route 308 is the designation for a portion of South Main Street in Federalsburg, Caroline County running from MD 313/MD 318 north to the end of state maintenance, where South Main Street continues north as a municipal street. The route is long. Although not signposted, it does appear in official documents and some commercial maps.MD 324
Maryland Route 324 is the unsigned designation for Maple Avenue, which runs for from MD 16/MD 331 south to the southern town limit of Preston in Caroline County, where the highway continues as county-maintained Choptank Road.MD 327
Maryland Route 327, which is known as Ikea Way, runs from MD 7 east to a dead end within the town of Perryville in southwestern Cecil County. MD 327 begins at an intersection with MD 7 on the eastern edge of the town of Perryville. The state highway heads southeast as a two-lane undivided road and crosses over Amtrak's Northeast Corridor railroad line. MD 327 comes to an intersection with Marion Tapp Parkway, which leads southwest to the entrance of the adjacent Perryville Wastewater Treatment Plant and to Perryville Community Park located at the Perry Point promontory east of the Perry Point VA Medical Center property. From here, the route passes south of an IKEA distribution center before it reaches a dead end.In a March 8, 1967, agreement, the Maryland State Roads Commission agreed to transfer maintenance of part of MD 7 and all of MD 271 to the town of Perryville upon the completion of a new highway and bridge from MD 7 across the Pennsylvania Railroad to serve the peninsula south of the railroad between Mill Creek and Furnace Bay. The new highway, designated MD 327, was constructed in 1968, the same year Firestone Plastics opened a chemical plant on the present site of the IKEA distribution center. The state highway had no name as of 1999; it was designated Firestone Road in 2001 and Ikea Way in 2004 shortly after the opening of the IKEA distribution center. In 2018, MD 327 was extended east from Marion Tapp Parkway to a dead end after it was determined that stretch of Ikea Way was maintained by the state.