ADOT crews will conduct more road work on Highway 89 Wednesday and Thursday on Highway 89 north of Flagstaff. Southbound Highway 89 will be down to one lane between milepost 433 and 431 from 8 a.m. until 3 p.m. Lane restrictions are needed so crews can perform shoulder drainage repairs to the highway. The speed limit will be reduced and drivers should anticipate delays and proceed through the work zone with caution. Also keep an eye out for construction personnel and equipment during work times.