Amends GS 136-26 to allow the Department of Transportation (DOT) to also prohibit traffic on transportation infrastructures under its jurisdiction it deems necessary to be excluded from public travel due to damage posing a danger to public safety (currently, more generally authorized to close any transportation infrastructure under its jurisdiction to permit proper completion of construction work). Expands the statute to make any person who willfully drives onto transportation infrastructure closed pursuant to the statute, or removes or destroys barriers or warning signs, lights or lanterns posted and placed pursuant to the statute (currently, warning signs not included), guilty of a Class 1 misdemeanor. Adds new language specifically exempting from the statute law enforcement, first responders, emergency management, and DOT personnel acting in the course and scope of their official duties. Effective December 1, 2019, and applies to offenses committed on or after that date.