Maryland Route 45
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Maryland Route 45 (MD 45) is a state highway in the U.S. state of Maryland. Known for most of its length as York Road, the state highway runs Template:Convert from U.S. Route 1 (US 1)/US 40 Truck in Baltimore north to the Pennsylvania state line in Maryland Line, where the highway continues as State Route 3001 (SR 3001). MD 45 is the primary highway between Downtown Baltimore and Towson, the county seat of Baltimore County. North of Interstate 695 (I-695), the state highway parallels I-83 and serves the suburban communities of Lutherville, Timonium, Cockeysville, and Hunt Valley. MD 45 also connects the northern Baltimore County communities of Hereford and Parkton. The state highway is maintained by the Maryland State Highway Administration in Baltimore County and by the Baltimore City Department of Transportation in the city, where the highway also follows Greenmount Avenue.
York Road, which follows the path of an 18th-century wagon road and 19th century turnpike, was one of the original state roads marked for improvement by the Maryland State Roads Commission in 1909. The state highway was constructed as an all-weather road in the mid-1910s from Baltimore to Hereford. The remainder of York Road to Maryland Line was built in the late 1910s and early 1920s. York Road was designated as part of US 111 in 1927 and widened to handle the increasing traffic load in the late 1920s. York Road became a secondary route when a freeway was constructed from Baltimore to York and Harrisburg in the 1950s. US 111 was moved to this freeway as sections opened; the old road became MD 45. MD 45 fully replaced US 111 on York Road when the U.S. Highway was replaced by I-83 in the early 1960s.
Route description
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MD 45 begins at an intersection with US 1/US 40 Truck (North Avenue) at the northwest corner of Green Mount Cemetery in Baltimore. Greenmount Avenue continues south as a city street to Forrest Street and Monument Street east of Downtown Baltimore. MD 45 heads north as a four-lane undivided street between the Barclay and East Baltimore Midway neighborhoods and crosses over CSX's Baltimore Terminal Subdivision railroad line. The state highway continues north through Waverly, where the street passes St. John's Episcopal Church and intersects 33rd Street. MD 45 is paralleled to the east by Old York Road through Waverly and Pen Lucy. At 43rd Street, MD 45's name changes to York Road. The name change occurs where the highway exited the city limits of Baltimore between 1888 and 1917. MD 45 continues north as a five-lane road with a center left-turn lane. Between Cold Spring Lane and Northern Parkway, the state highway passes through Mid-Govans, which is home to the Senator Theater and loses the center left-turn lane.<ref name="Maryland City HLR 2005"/><ref name="Google Maps MD 45"/>
MD 45 leaves the city limits and passes through the Baltimore County community of Rodgers Forge. The state highway passes along the eastern margin of Towson University before reaching the southern edge of downtown Towson, where MD 45 Bypass splits to the northwest along Burke Avenue. In the center of the county seat adjacent to the Towson Town Center shopping mall, MD 45 passes through the racetrack-shaped Towson Roundabout, where the state highway meets the southern end of MD 146 (Dulaney Valley Road) and east–west Joppa Road. On either side of the roundabout, the state highway narrows to two lanes for on-street parking. MD 45 heads northwest from the roundabout, becoming four lanes again, and meets the northern end of MD 45 Bypass (Bosley Avenue) before it gains a center left-turn lane and passes east of the George Washington Carver Center for Arts and Technology. The route has a partial cloverleaf interchange with I-695 (Baltimore Beltway), at which point it is a four-lane divided highway. The state highway continues north through the densely populated suburban area of Lutherville as a five-lane road with a center left-turn lane, where the highway intersects Seminary Road, which heads west as MD 131. The west side of MD 45 is lined with commercial and industrial parks as it passes through Timonium. Between Timonium Road and Padonia Road, both of which head west to interchanges with I-83, the state highway passes along the eastern edge of the Timonium Fairgrounds, home of the Maryland State Fair and the Baltimore County 4-H Fair. The industrial parks continue past Warren Road in Cockeysville, where the highway crosses Beaver Dam Run. MD 45 meets the western end of MD 145 (Ashland Road) before arriving in Hunt Valley, where the highway intersects Shawan Road at Hunt Valley Town Center, a residential and retail center.<ref name="Maryland HLR"/><ref name=" Google Maps MD 45"/>
_just_south_of_Maryland_State_Route_439_(Old_York_Road)_in_Maryland_Line,_Baltimore_County,_Maryland.jpg){kind=link}
North of Shawan Road, MD 45 becomes a two-lane undivided road that crosses Western Run and curves northeast before resuming its northward course through the community of Sparks, where the highway has an intersection with Belfast Road and passes several industrial parks. The state highway continues through the village of Hereford, which contains the western terminus of MD 138 (Monkton Road) and the eastern terminus of MD 137 (Mount Carmel Road) one block apart. North of Hereford, MD 45 passes west of Hereford High School and descends into the valley of Gunpowder Falls, where the highway closely parallels I-83. The two highways separate, with the state highway passing by the Half-Way House, a preserved toll house from the 19th-century turnpike that is halfway between Baltimore and York. In Parkton, MD 45 intersects Middletown Road and passes over the Torrey C. Brown Rail Trail and Little Gunpowder Falls. North of the village, the state highway crosses to the west side of I-83 at a diamond interchange with the Interstate. The state highway intersects MD 439 (Old York Road) and Freeland Road in the community of Maryland Line before reaching its northern terminus at the Pennsylvania state line. The roadway continues north as SR 3001 (Susquehanna Trail), an unsigned quadrant route, toward the borough of Shrewsbury.<ref name="Maryland HLR"/><ref name="Google Maps MD 45"/>
MD 45 is a part of the National Highway System as a principal arterial from US 1 in Baltimore to Shawan Road in Hunt Valley except for the short stretch between MD 146 and the northern junction with MD 45 Bypass in Towson.<ref name="Maryland HLR"/><ref name="National Highway System"/>
History
York Road was first constructed as a wagon road in the early 1740s to connect the new settlement of York with the port of Baltimore.<ref name=" History of Road Building in Maryland"/> In the 19th century, this road became part of the Baltimore and Yorktown Turnpike.<ref name=" History of Road Building in Maryland"/><ref name=" Report on the Highways of Maryland"/> When the Maryland State Roads Commission put together a state road system in 1909, York Road from North Avenue in Baltimore to Parkton was designated one of the original state roads to be improved.<ref name="1910 map"/> The first section of the old turnpike to be resurfaced with a Template:Convert wide macadam surface was from Washington Avenue just north of the center of Towson and the hamlet of Texas south of Cockeysville in 1913. The highway from the contemporary northern city limit of Baltimore near 42nd Street to Washington Avenue just north of the center of Towson was surfaced with bituminous concrete in 1914. York Road from Texas to Glencoe was resurfaced in 1914 and from there to the hamlet of Verona south of Hereford in 1915.<ref name="1915 src report"/> The improved macadam road was extended to Parkton by 1919.<ref name="1919 src report"/> York Road from Parkton to the Pennsylvania state line was paved in concrete in two sections completed in 1921 and 1923.<ref name="1921 map"/><ref name="1923 map"/> Greenmount Avenue was reconstructed from 42nd Street to its southern end by 1924.<ref name="1923 map"/><ref name="1926 src report"/> In 1927, York Road and Greenmount Avenue north of North Avenue became part of US 111.<ref name="1927 map"/>
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Early improvements to York Road included the construction of new bridges over Western Run and Gunpowder Falls in 1918 and 1924; these bridges remain in use.<ref name="1919 src report"/><ref name="NBI Western Run"/><ref name="NBI Gunpowder Falls"/> Other bridges included grade separations at the crossings of the Northern Central Railway at Cockeysville and Parkton built around 1930.<ref name="1930 src report"/> US 111 was widened with concrete shoulders in much of Baltimore County in the mid- to late 1920s.<ref name="1926 src report"/> York Road and Greenmount Avenue were widened and reconstructed in Baltimore in 1929 and 1930. By 1930, US 111 had a width of Template:Convert from inside Baltimore to Towson, Template:Convert from Towson to Parkton, and Template:Convert from Parkton to the Pennsylvania state line.<ref name="1930 src report"/> By 1934, the Maryland State Roads Commission recommended widening the U.S. Highway to Template:Convert from Towson to Cockeysville and to Template:Convert from Parkton to the Pennsylvania state line.<ref name="1934 src report"/> The latter stretch was widened to Template:Convert in 1946 and 1947.<ref name="1948 src report"/>
Further widening of US 111 was not planned because York Road was to be bypassed by a freeway between Baltimore and Harrisburg. Construction on the Baltimore– Harrisburg Expressway got underway in 1948 between Timonium and Hunt Valley.<ref name="1950 src report"/> The first portion of the freeway opened from Towson to Belfast Road north of Hunt Valley in December 1955, concurrent with the opening of the portion of the Baltimore Beltway between Falls Road and York Road.<ref name="Milestones"/> US 111 was moved to the freeway when the Baltimore– Harrisburg Expressway was completed to the north of Hereford in 1957; MD 45 was assigned to York Road between the Beltway and the northern end of the freeway.<ref name="Milestones"/><ref name="1957 map"/> A second, disjoint portion of MD 45 was assigned from north of Parkton to the Pennsylvania state line when the Baltimore– Harrisburg Expressway was completed between Parkton and the York area in 1959.<ref name="Milestones"/><ref name="1959 map"/> When the final section of the US 111 freeway was completed between Hereford and Parkton in 1960, MD 45 was assigned to the stretch of York Road between those communities.<ref name="Milestones"/><ref name="1960 map"/> US 111 and I-83 were co-signed on the freeway between Towson and Harrisburg until US 111 was decommissioned in 1963; the MD 45 designation was extended south into Baltimore to US 1 at that time.<ref name="1963 map"/>
Junction list
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Related routes
Towson bypass route
_at_Maryland_State_Route_45_(York_Road)_in_Towson,_Baltimore_County,_Maryland.jpg){kind=link}
Maryland Route 45 Bypass (MD 45 Bypass) is a county-maintained, signed bypass route of MD 45 in Towson. The four- to six-lane divided highway runs Template:Convert along the west side of downtown Towson. MD 45 Bypass begins south of downtown at MD 45's intersection with Burke Avenue. At Towsontown Boulevard on the north edge of the Towson University campus, the bypass route curves north and its name changes to Bosley Avenue. MD 45 Bypass follows Bosley Avenue north past Joppa Road to MD 45 north of the Towson Roundabout. Bosley Avenue continues northeast beyond MD 45 to Fairmount Avenue.<ref name=" Google Maps MD 45 Bypass"/> MD 45 Bypass is a part of the National Highway System as a principal arterial for its entire length.<ref name="National Highway System"/>
_from_the_Towson_University_pedestrian_overpass_in_Towson,_Baltimore_County,_Maryland.jpg){kind=link}
Auxiliary routes
MD 45 has five unsigned auxiliary routes. MD 45A is in Towson; MD 45B through MD 45E are in Cockeysville.
- MD 45A is the designation for the Template:Convert section of West Road between MD 45 and a pair of ramps to and from eastbound I-695.<ref name="Maryland HLR"/><ref name="Google Maps MD 45A"/>
- MD 45B is the designation for the Template:Convert segment of Cockeysville Road immediately west of MD 45.<ref name="Maryland HLR"/><ref name="Google Maps MD 45B"/>
- MD 45C is the designation for the Template:Convert section of Railroad Avenue immediately west of MD 45.<ref name="Maryland HLR"/>
- MD 45D is the designation for the Template:Convert segment of Sherwood Road between MD 45 and Cedar Knoll Road.<ref name="Maryland HLR"/><ref name="Google Maps MD 45D"/>
- MD 45E is the designation for the Template:Convert section of Beaver Run Lane immediately east of MD 45.<ref name="Maryland HLR"/>