Here are the legal travel times and restrictions for heavy-haul and oversize loads in Texas.
Daylight time is considered 30 minutes before sunrise and 30 minutes after sunset. Nighttime travel is permitted in the state of Texas if the shipment is less than 100 feet long or 10 feet wide on Interstate highways only. If the shipment is ONLY overweight, it may travel at night on any roads. Weekend travel is permitted.
You can travel on some holidays but there are limits. If the length is in excess of 110 feet, the height is in excess of 16 feet, or the width is in excess of 14 feet, you may NOT travel on the following holidays: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The Texas state DOT permit office is closed on these days as well.
Texas does have quite a few travel time curfews in high-density traffic areas, so be sure to refer to your permit. These typically range from 6-9 a.m. and 3-6 p.m., for example. Each permit issued by the Texas DOT will specifically state exactly what the curfew law is. No Texas state heavy haul or oversize trucking permit is valid without the specific curfew restrictions attached to it.