Stroke emergency near 540th Street SW in Kalona Heard on: Johnson IA Fire Dispatch Group Calls 00:15 00:00 Johnson County Ambulance, JCA three one, respond to stroke emergency, at (number withheld) 540th street southwest, Colona. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Johnson County Ambulance, JCA three one, respond to stroke emergency, at (number withheld) 540th street southwest, Colona. 00:11 Cross streets are Gable Avenue southwest and Haywood Avenue southwest. 9/6/2026 05:47 AM Medical Emergency 540th St SW, Kalona, IA 52247 View on map