Excessive heat causes bump to form on interstate in central Pa. city. Published: Jun. 24, 2025, 7:57 p.m. By . ... resulting in the asphalt overlay to heave, PennDOT says.

Starting at 10 a.m., restricted “Tier 1″ vehicles will not be allowed to drive on I-81 from Maryland to I-78 or the entire lengths of Interstate 99 and Interstate 83.