Lanes on both east and westbound Interstate-40 will be narrowed to one lane in each direction between Parks to just west of Flagstaff this week. ADOT says work will be underway Monday through Wednesday from 6 a.m. until 6 p.m. Also, brief ramp closures are expected at the A-1 Mountain Road and Bellemont exits. The closures will require drivers to use the next exit to enter or exit I-40. The lane reductions and closures are needed due maintenance work that needs to be done on the 12-mile stretch of highway. ADOT says there will be a vehicle-width limit of 14 feet and a reduced speed limit in the work zone. If you travel this stretch daily, make sure you allow yourself extra time to get to your destination.