PHOENIX –The Arizona Department of Transportation is not scheduling any full closures along state highways over the Labor Day weekend.

ADOT and its contractors have no construction plans from Friday afternoon, Aug. 29, to late Monday night, Sept. 1.

Drivers should allow extra time during peak travel periods, including Friday and Monday afternoons, state transportation officials said.

ADOT officials anticipate heavy traffic and possible delays on highways in and out of the Phoenix and Tucson areas during peak holiday weekend travel times. That includes Interstate 17 north of Phoenix.

The new I-17 flex lanes, providing drivers with two additional lanes between Black Canyon City and Sunset Point, will be open for northbound traffic on Friday and Saturday and for southbound traffic on Sunday and Monday, officials said.

Other highways expected to be busy at times include State Route 87 between Fountain Hills and Payson, US 93 between Wickenburg and Hoover Dam, I-10 between Tucson and Phoenix and I-8 and I-10 between the Valley and the California state line.

For information about traveling in hot weather: ADOT website.