Interstate 83 (I-83): From the JFX to Harrisburg, With Crash and Bridge Data

How long is I-83?

FHWA's January 2026 Route Log gives I-83 85.05 miles: 34.50 in Maryland and 50.55 in Pennsylvania. Both Wikipedia and Interstate Guide print 85.03. They agree on Maryland and list Pennsylvania at 50.53, so the whole difference is two hundredths of a mile in the Pennsylvania row.

Pennsylvania holds about three-fifths of the road. The Route Log rows for I-83 carry no overlap note, so no stretch is shared with another two-digit Interstate. Wikipedia does describe two shorter overlaps: about 1.4 miles with I-695, the Baltimore Beltway, near Timonium and Lutherville, and part of the Harrisburg routing with US 322.

Where I-83 starts and ends

The southern end is an at-grade, signalized intersection with President Street and Fayette Street in downtown Baltimore. From there I-83 follows the Jones Falls Expressway, or JFX, north to the Baltimore Beltway. The city maintains the part inside Baltimore, and the Maryland State Highway Administration maintains the Baltimore County part. Past the I-695 split the road becomes the Baltimore-Harrisburg Expressway and reaches the Mason-Dixon line about 25 miles past the city line.

All of the Pennsylvania mileage is named the Veterans of Foreign Wars of the United States Memorial Highway. After York, I-83 crosses the Susquehanna River on the John Harris Bridge south of downtown Harrisburg. Beyond the PA 581 interchange it forms part of the Capital Beltway around the city. It ends at I-81 and US 322 near Progress; Interstate Guide places the end at Colonial Park.

Interstate junctions along I-83

Reading south to north, the list has two Interstates, and both are in Pennsylvania. I-76, the Pennsylvania Turnpike, comes first, near Camp Hill and before the river crossing. I-81 is the last entry, at the northern end. Maryland has no row because the list leaves out three-digit routes, which also keeps out I-283 at Harrisburg's Eisenhower Interchange. I-283 runs on to the Turnpike, so I-83 reaches I-76 a second time by that spur.

Fatal crashes on I-83

FARS counts 41 fatal crashes on the I-83 main line from 2020 to 2024, and they killed 46 people, a little over 9 a year. The death rate ranking on this site takes in only the 56 Interstates of 100 miles or more, and at 85.05 miles I-83 is too short to rank, so its rate shows as n/a.

The deaths split evenly, 23 in Maryland and 23 in Pennsylvania. Baltimore County had 18, the most of any county, and York County had 16. Dauphin County, home to Harrisburg, had 6, Baltimore City 5 and Cumberland County 1. Year by year the count went 6, 13, 6, 9 and 12, so 2021 and 2024 alone hold more than half the five-year total.

Counties with the most I-83 crash deaths

Bridges on I-83

The 2025 National Bridge Inventory lists 101 bridges carrying the I-83 main line, and the median one was built in 1959. Nine rate Poor, about 9 percent, while 80 rate Fair and just 12 rate Good. Across the 66 main Interstates in this site's data, 2.6 percent of main-line bridges rate Poor. Of the ten routes too short for a death rate, I-83 has the most Poor bridges.

Pennsylvania has 58 of the bridges and 6 of the Poor ratings, about 10 percent. Maryland has 43, with 3 Poor, or 7 percent. Interstate Guide reports that one contract in the East Shore Section 1 widening near Harrisburg built four new main-line bridges.

Tolls on I-83

FHWA's January 1, 2023 toll inventory lists no facility on I-83, and no tolled lanes added since then show up in Wikipedia or Interstate Guide. Baltimore to I-81 costs nothing in tolls.

The nearest toll road is the Pennsylvania Turnpike, which FHWA lists as a toll facility on I-76. Drivers pay once they leave I-83 for the Turnpike near Camp Hill or reach it by way of I-283.

I-83 auxiliary routes

I-283 is the only three-digit route that carries I-83's number. It runs 2.90 miles from the Eisenhower Interchange southeast of Harrisburg to I-76 and PA 283. York also has a business loop, Business I-83, on the old US 111 path through downtown. Wikipedia says it got the designation in 1961 and stayed Pennsylvania's only Interstate business route until I-376 Business was named in 2009.

US 111, the unfinished JFX and the Harrisburg rebuild

Most of I-83 south of Lemoyne took the place of US 111, a spur of US 11. Interstate Guide dates the first freeway section along US 111 to 1950, and Wikipedia gives 1954 for the first opening, from PA 392 north to PA 114. The corridor entered the Interstate plan on August 14, 1957, and the I-83 number went on the road in 1960. US 111 was retired in 1963. The route was finished in 1971, when the Eisenhower Interchange at Harrisburg opened.

I-83 was the first Maryland road added to the Interstate System, and the JFX was the first Interstate built in Baltimore. It reached Guilford Avenue in the early 1960s, Monument Street by the mid-1970s and Pleasant Street by 1983. Plans to carry it through Fells Point to I-95 met community opposition, and in September 1982 the 4.4 miles from Pleasant Street to I-95, then estimated at $609 million, were withdrawn from the Interstate System. Stub ramps for that link had been built at the I-95 interchange for Boston Street and O'Donnell Street. The JFX got to Fayette Street by 1987, and the Jones Falls Boulevard project finished rebuilding President Street by about 1990.

Pennsylvania moved I-83 to mileage-based exit numbers in April 2001. Since then it has reworked the PA 581 junction near Harrisburg (2012 to 2015) and the Mount Rose Avenue (PA 124) interchange in York (2015 to 2022). The PA 851 interchange near Shrewsbury reopened as a diverging diamond on June 28, 2021. From 2016 to 2022 the stretch from I-81 to near Union Deposit Road was widened to six through lanes.

Work began on October 23, 2023 to rebuild I-83 from the John Harris Bridge to the Eisenhower Interchange. The project adds a PA 230 (Cameron Street) interchange and closes the one at 13th Street, and PennDOT expects the first contract to finish in October 2027 and the second to run through 2033. Wikipedia also says replacement of the John Harris Bridge, which carries I-83 over the Susquehanna, is set to begin in January 2027. Other ideas have stayed on paper. An extension north to Rochester, New York, came up in 2002 and was judged costly. In Baltimore, Walter Sondheim proposed in 2005 to replace the elevated downtown JFX with an extended President Street, and a 2009 plan called for tearing down about a mile of it.

I-83 traffic and road conditions

I-83 changes hands at the Mason-Dixon line, and so does the traffic reporting. Maryland's CHART covers the JFX and Baltimore County, and 511PA picks up from the state line through York and Harrisburg, where reconstruction work is under way. Both are linked below.

I-83 questions