Drivers will be able to travel 70 mph on about 1,500 miles of Wyoming highways by the end of April, according to the Wyoming Department of Transportation.

WYDOT says in a press release the new speed limit for Wyoming’s non-interstate highways will go into effect as crews install new speed limit signs over the next several weeks, with another 1,000 miles of highway expected to have the new signs by the end of May.

Until the new 70 mph speed limit signs are up, drivers must adhere to the existing posted speed limit.

The department expects the new signs to be installed on these highways by the end of April:

  • US 189 - I-80 to Daniel Junction, 125 miles
  • US 287/WYO 789 - Rawlins to WYO 28 south of Lander, 125 miles
  • US 20-26 - Casper to Shoshoni, 87 miles
  • US 30-287 - Walcott Junction to Laramie, 86 miles
  • WYO 450 - Newcastle to Wright, 76 miles
  • US 14-16 - Ucross to Gillette, 72 miles
  • US 30 – Sage Junction to I-80 at Granger Junction, 70 miles
  • US 26-287 - Dubois to Kinnear, 58 miles
  • WYO 487 - Medicine Bow to WYO 220 southwest of Casper, 52 miles
  • WYO 28 - from WYO 372 to the Fremont County line, 52 miles
  • WYO 120 - Meeteetse to Thermopolis, 50 miles
  • WYO 789 - Creston Junction to Baggs, 49 miles
  • US 191 - Farson to Boulder, 47 miles
  • US 16 - Moorcroft to Newcastle, 42 miles
  • WYO 530 - Green River to the Utah border, 42 miles;
  • WYO 372 - from I-80 at the La Barge Interchange to Fontenelle, 40 miles;
  • US 191 - Rock Springs to Eden, 32 miles
  • WYO 59 - Wright to Gillette, 31 miles
  • WYO 116 - Upton to WYO 450, 31 miles
  • US 30/WYO 89 - Idaho border to Cokeville and Sage Junction, 29 miles
  • US 14-16-20 - Cody to WYO 30, 26 miles
  • US 310/WYO 789 – US 14-16-20 Junction to Lovell, 26 miles
  • WYO 220 - Muddy Gap Junction to Pathfinder Reservoir, 28 miles
  • WYO 230 - Encampment to Colorado border, 26 miles
  • US 16 - Worland to Ten Sleep, 22 miles
  • US 287 - Laramie to Colorado border, 20 miles
  • US 191 – Daniel Junction to Bridger-Teton National Forest boundary, 19 miles
  • US 287 - Fort Washakie to US 26 Diversion Dam Junction, 16 miles
  • WYO 130 - Saratoga to Encampment, 16 miles
  • US 16 - Buffalo to Ucross, 15 miles