ADOT will be closing east and westbound Interstate-40 beginning this week to work on an overpass near Seligman. ADOT says bridge deck work construction will begin on Sunday and last through next Friday. Work will be done in the overnight hours through the morning from 9 p.m. until 11 a.m. Eastbound I-40 drivers will use the off-and-on ramps at Exit 121 and re-enter I-40. Westbound drivers will do the same. Flaggers will direct traffic through the work zone and speed limits will be reduced to 25-miles-per-hour.