ADOT has begun intermittent overnight full closures of State Route 89A near Pumphouse Wash Bridge in Oak Creek Canyon. The closures will be in place through Friday, August 19th, and August 22nd through August 26th from 9 p.m. until 6 a.m. The restrictions are needed for crews to continue on the State Route 89A Oak Creek Canyon Improvements project, which includes rockfall mitigation, erosion control and a bridge rehabilitation. Detours will be in place as well as an eight-foot vehicle-width and 30-foot vehicle-length limit. ADOT reminds travelers to slow down and use caution near crews and equipment.