ADOT says drivers who travel I-17 to plan for nighttime north and southbound lane restrictions between the Sunset Point Rest Area and Black Canyon City while crews perform guardrail repair work. Restrictions will occur from 6-pm to 6-am. Southbound I-17 will be narrowed to one lane between the Sunset Point Rest Area and Bumble Bee Road on Tuesday through Thursday. Northbound I-17 will be narrowed to one lane between Black Canyon City and Bumble Bee Road from midnight to 6-am on Friday.