AMES, Iowa—The Iowa Department of Transportation is reporting that Interstate 35/80 from Merle Hay Road to the east mixmaster (exit 137A – Ankeny) is closed in both directions this morning. The incident was reported shortly after 9:00 AM. Emergency crews are on scene to evaluate possible hazardous materials issues related to a traffic incident. Motorists are being directed to use I-235 or the Iowa 5 bypass. See the latest traffic information on https://hb.511ia.org. #