Coconino County Public Works, in conjunction with the U.S. Forest Service (USFS), will ignite the annual green waste burn at the Willard Springs Green Waste Station, located 17 miles south of Flagstaff at Exit 326 on the west side of Interstate 17 (I-17), by Tuesday, December 14, 2021 The Willard Springs green waste burn is expected to produce smoke during the ignition period, which will last approximately three weeks. Based on wind and weather conditions, smoke may be heavy at times and visible to motorists on I-17. The Coconino National Forest will post signage on I-17 to notify motorists about smoke and to drive with caution.