Texas ups speed limit on 1,500 miles of interstate

Drivers in Texas will soon be able to legally motor across the state a little faster on most roads.

Beginning today, the state of Texas will begin upgrading the speed limit from 70 to 75 mph on about 1,500 miles of its interstate system.

Broadly-speaking, the upgrades apply to most of Texas' major interstate stretches that were previously marked at 70 mph. The longest section to be upped is a 310-mile stretch of Interstate 20 from the Parker county line west of Fort Worth to just outside of Pecos in Far West Texas, while the most traveled sections are likely Interstate 45 between the outskirts of Dallas and Conroe (north of Houston) and Interstate 10 between Houston and San Antonio. Some 70 mph sections, mostly in metropolitan areas, will retain their existing limits, while 80 mph speed limits in West Texas remain untouched. The full list of newly increased speed limits is on the Texas Department of Transportation's website.

Signs won't go up along all 1,500 miles immediately, which means that drivers will still be held accountable for the posted speed limit until new markers are installed.

The move follows the state's plan announced last year to allow certain roads to be marked at up to 85 mph if approved after a safety feasibility study. The 75 mph upgrade aligns the majority of Texas' interstates with its neighbors across most of the western United States; Utah is the only other state to allow 80 mph travel on some interstate stretches.