A $1.2 million project to flatten slopes and install guardrail is scheduled to begin Sept. 16 on US 16/20 between Basin and Manderson.
"Motorists should expect traffic delays during dirt hauling operations," said Wyoming Department of Transportation resident engineer Michael Miller of Basin.
The Basin/Manderson project is scheduled between mileposts 187 and 195.
Wilson Brothers Construction Inc., of Cowley, is the prime contractor.
For information about WYDOT's work, contact WYDOT public relations specialist Cody Beers at (307) 431-1803.