CENTENNIAL TRAIL MAINTENANCE - End of Season mowing will begin November 4, starting in the city of Snohomish and working north. Sections where mowing is taking place will be closed to all traffic for safety and to expedite the mowing process. Hours of operation are 8AM-4PM. Estimated completion time is 1-1/2 weeks. For further information, please contact Snohomish County Parks and recreation at 425-388-6600 or contact.parks@snoco.org.