Editing Interstate 83 (section)

===Maryland===
====Jones Falls Expressway====
[[File:83 in Baltimore.jpg|right|thumb|I-83 seen from the US&nbsp;40 (Orleans Street) bridge in Baltimore, Maryland]]
The '''Jones Falls Expressway''' ('''JFX''') is a {{convert|10.2|mi|km|adj=mid|-long}} [[freeway]] that carries I-83 from [[Downtown Baltimore]] to the northern suburbs. It is the area's true north–south artery because [[Interstate 95 in Maryland|I-95]] runs from southwest to northeast through the southern edge of the city. Its southern terminus is at [[Fayette Street]], and its northern terminus is at [[Maryland Route&nbsp;25]] (MD&nbsp;25), just north of the [[Baltimore Beltway]] ([[Interstate 695 (Maryland)|I-695]]). Inside [[Baltimore]], the road is maintained not by the [[Maryland State Highway Administration]] (MDSHA), which controls most freeways in the state, but by the city's [[Baltimore City Department of Transportation|department of transportation]].

The freeway begins at an at-grade, four-way intersection between the JFX, Fayette Street, and [[President Street (Baltimore)|President Street]], located in close proximity to the [[Phoenix Shot Tower]]. President Street continues south along the eastern edge of the [[central business district]] (CBD) to terminate at a traffic circle in [[Inner Harbor East, Baltimore|Inner Harbor East]]. Fayette Street serves as an access route into the downtown area.

Passing beneath the Orleans Street Viaduct ([[U.S. Route 40 in Maryland|US&nbsp;40]]), the JFX runs north, passing near the [[Washington Monument (Baltimore)|Washington Monument]]. Between exits&nbsp;3 and 4, there is a 90-degree turn that sometimes requires motorists to slow down just before entering it, with an advisory speed posted at {{convert|40|mph|km/h|abbr=on}}. The curve is located between the [[Guilford Avenue]] and [[Preston Street (Baltimore)|Preston Street]] overpasses. Within the curve, the southbound JFX interchanges with [[Maryland Route 2|MD&nbsp;2]], with an exit to [[St. Paul Street (Baltimore)|St. Paul Street]] and an entrance from [[Charles Street (Baltimore)|Charles Street]] (MD&nbsp;139).

[[File:2016-07-12 15 30 04 View south along Interstate 83 (Jones Falls Expressway) just south of Exit 10 (Northern Parkway) in Baltimore City, Baltimore.jpg|thumb|left|I-83 southbound on the JFX past Northern Parkway in Baltimore, Maryland]]
Having passed this curve, the JFX begins to parallel [[Maryland Route 25|MD&nbsp;25]], going under the [[Howard Street Bridge]] and interchanging with Maryland Avenue and North Avenue ([[U.S. Route 1 in Maryland|US&nbsp;1]]/[[U.S. Route 40 Truck (Baltimore, Maryland)|US&nbsp;40&nbsp;Truck]]) before continuing north past [[Druid Lake]], forming the northeastern boundary of [[Druid Hill Park]]. Running northwest out of the city center, the JFX is paralleled by its namesake river, the [[Jones Falls]], on one side, and the [[Maryland Transit Administration]]'s [[Baltimore Light RailLink]] line on the other. Closer to downtown, the light rail line peels off in a different direction, while the falls flows directly underneath the elevated freeway.

After interchanging with [[Cold Spring Lane]] and [[Northern Parkway (Baltimore)|Northern Parkway]] (between which lies [[Cylburn Arboretum]]), the JFX exits Baltimore, entering [[Baltimore County, Maryland|Baltimore County]]. Passing close to [[Mt. Washington Pediatric Hospital]], [[Mount Saint Agnes College]], and [[Jones Falls Park]], the route skirts the edge of [[Lake Roland (park)|Lake Roland]] before interchanging with [[Ruxton Road]] just south of [[Interstate 695 (Maryland)|I-695]] (Baltimore Beltway).

At the beltway, I-83 leaves the JFX and joins I-695 for a distance of {{convert|1.4|mi|km}}, where it separates from the latter route to continue onward into northern Maryland. Meanwhile, the JFX continues for another {{convert|0.5|mi|km}} in a four-lane divided format before terminating at an at-grade intersection with MD&nbsp;25 (Falls Road). I-83 and I-695 split off at the southern terminus of the Baltimore–Harrisburg Expressway, and I-695 continues its eastward trek toward [[Towson, Maryland|Towson]] and [[Parkville, Maryland|Parkville]].

====Baltimore–Harrisburg Expressway====
[[File:2019-07-17 12 51 13 View north along Interstate 83 (Baltimore-Harrisburg Expressway) from the overpass for westbound Maryland State Route 943 (West Warren Road) in Cockeysville, Baltimore County, Maryland.jpg|left|thumb|I-83 northbound at Warren Road in Cockeysville, Maryland]]
After separating from the beltway, I-83 is now known as the '''Baltimore–Harrisburg Expressway'''. Running due north away from the beltway, the route parallels [[Maryland Route 45|MD&nbsp;45]] (York Road), the former route of [[U.S. Route 111|US&nbsp;111]]. Passing to the west of [[Timonium, Maryland|Timonium]] and [[Cockeysville, Maryland|Cockeysville]], I-83 leaves the suburban belt around Baltimore and enters rural Baltimore County just north of [[Hunt Valley, Maryland|Hunt Valley]] at [[Shawan Road]]. I-83 and MD&nbsp;45 continue to parallel one another through the northern portion of the county, with MD&nbsp;45 crossing over I-83 once, at an interchange. This segment of I-83 has several sections with higher than usual gradients.

The only major settlement encountered by I-83 along this stretch is [[Monkton, Maryland|Monkton]], reached via [[Maryland Route 137|MD&nbsp;137]]. To the west of I-83, MD&nbsp;137 connects with the northern terminus of MD&nbsp;25, I-83's former companion to the south.

The Interstate eventually crosses the [[Mason–Dixon line]] into [[York County, Pennsylvania]], {{convert|25|mi|km}} north of Baltimore, mere feet from a partial interchange with [[Freeland Road]] and parallel with MD&nbsp;45; the latter route becomes the [[Susquehanna Trail]] when it reaches Pennsylvania.
[[File:2019-07-17 12 28 49 Plaque commemorating the completion of the Baltimore-Harrisburg Expressway (Interstate 83) on the overpass for Maryland State Route 131 (West Seminary Avenue) on the edge of Lutherville and Mays Chapel in Baltimore County, Maryland.jpg|thumb|Baltimore–Harrisburg Expressway (I-83) dedication plaque]]