I-17 will close overnights at the I-17/I-40 interchange in Flagstaff for the next 2-weeks while crews set up support structures in order to replace the I-40 bridge decks. Beginning Sunday, northbound I-17 will close from 8-pm to 5-am where the highway passes under I-40. This restriction will remain in place through Friday. On Sunday, June 10-th, southbound I-17 will close under I-40 nightly through Friday, June 15-th. Detours will be in place.
