Spokesman Bob Wilson said the strong economy makes it hard to find qualified drivers, who have a lot of other options.
"It's a tight labor market,” he said. “So a lot of folks who have what's known as a CDL have their pick of jobs. It doesn't make it easy for anyone who's looking for drivers."
The pay rate is $23 an hour. Retired CDOT workers can get paid $25 an hour or their hourly wage at retirement, whichever is higher.
Applicants will have to have their CDL license and pass a drug test.
The state Department of Personnel and Administration gave CDOT a residency waiver, which will allow the agency to hire out-of-state.
Wilson said some side roads may take a little longer to plow until a full fleet of snow plow drivers is in place.
CPR reporter Nathaniel Minor contributed to this report.