Wednesday, April 15th at approximately 0625, the West Chicago FPD was dispatched to a dryer fire (not extended) at 704 Washington, in the General Mills Plant.Upon further investigation, companies found a dryer the size of several semi trailers end to end burning on the 3rd floor.Subsequent upgrades to a general alarm and than a MABAS box alarm for additional manpower. The fire was under control in about 45 minutes.