Speed limits on more stretches of highways in Pennsylvania are scheduled to increase to 70 mph, according to the Pennsylvania Department of Transportation. Approximately 400 additional miles of the Pennsylvania Turnpike and 400 miles of various highways will increase their speed limits.
Increases to 70 mph have been occurring since 2014. Before the latest increases, approximately 200 miles of Turnpike and PennDOT roadways converted to 70 mph limits. Nearly 1,000 miles of Pennsylvania roadways will have 70 mph speed limits.
Throughout the week, crews will be installing new speed limit signs and curve warning signs along affected roadways. Areas with increasing speed limits include:
- I-79 from I-90 in Erie County south to a point just north of the PA 228 interchange in Butler County (97 miles)
- I-79 from I-70 in Washington County south to the West Virginia border (33 miles)
- I-80 from the Ohio State border east to a point near mile marker 190 in Clinton County (190 miles)
- I-80 from a point near mile marker 195 in Union County to a point near mile marker 247 in Columbia County (52 miles)
- US 15 from the interchange with PA 14 in Lycoming County north to the New York State border (49 miles)
- I-99 from Exit 68 in Centre County south to a point near mile marker 34 in Blair County (34 miles)
- I-99 from Exit 28 in Blair County south to mile marker 0 (PA Turnpike) in Bedford County (28 miles)
- I-380 from I-84 in Lackawanna County south to Exit 3 in Monroe County (21 miles)
Any portions of highways posted at 55 mph will remain at 55 mph. Not all sections of highways will move to 70 mph speed limits. Areas with relatively high crash histories and heavy, weaving traffic will maintain their speed limits.
Pennsylvania has uniform speed limits, allowing trucks to travel at the same speeds as passenger vehicles. PennDOT spokesperson Rich Kirkpatrick said the state’s uniform speed limits were put into place after studies determined speed differentials were unsafe.
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