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Interstate 78 Road Conditions & Traffic

Q: What are the current road conditions on Interstate 78?

Interstate 78 currently has 100 active incidents. View the interactive map for details.

Q: How long is Interstate 78?

Interstate 78 is 144 miles long, running east to west.

Interstate 78 has 100 active incidents (1 critical). 144 miles from Harrisburg, PA → New York, NY. Including 99 constructions, 1 closure. Updated every 15 minutes.

Length

144 miles

Direction

East ↔ West

Route

Harrisburg, PA → New York, NY

States

PA, NJ, NY

100 Active Incidents

1 Critical

3 States

View Interstate 78 on Interactive Map →

Active Incidents on Interstate 78 (100)

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CONSTRUCTION PA

Roadwork on I-78 westbound between .9 miles west of Exit 60A: PA 309 SOUTH - QUAKERTOWN and 1 miles west of Exit 57: LEH

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Showing 50 of 100 incidents. View all on map →

Last updated: Mar 29, 2026, 10:32 PM ET

Frequently Asked Questions: Interstate 78

What are the current road conditions on Interstate 78?

Interstate 78 currently has 100 active incidents, including 99 constructions, 1 closure. View our interactive map for exact locations and details.

What states does Interstate 78 pass through?

Interstate 78 runs 144 miles from Harrisburg, PA → New York, NY, passing through 3 states: PA, NJ, NY.

How long is Interstate 78?

Interstate 78 is 144 miles long, running east to west from Harrisburg, PA → New York, NY.

Interactive Interstate 78 Map

See all incidents, weather alerts, and traffic on Interstate 78 in real-time.

Open Live Map →