The Arizona Department of Transportation will conduct a full closure of southbound Interstate-17 overnight Tuesday and again on Wednesday. ADOT crews will close the highway from the Sunset Point rest area south to the Bumble Bee Road exit. Crews will be installing concrete barriers along the route from 10 p.m. until 2 a.m. The roadway will be closed again from 10 p.m. Wednesday to 2 a.m. Thursday. ADOT advises travelers to go through the area before or delay driving until the closure is lifted, or take an alternate route. Either way, drivers should allow for extra time driving through the area over the next two nights.