Report of unsafe semi truck on Highway 21 Heard on: Johnson County IA Regional Interop 00:24 00:00 Highway 21 northbound, just about heading into Belle Plaine. 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 Highway 21 northbound, just about heading into Belle Plaine. 00:04 A semi truck that has almost driven off of the road twice. 00:08 Not able to see what color the cab is, but the trailer is a white refrigerator unit. 00:14 And the license plate is out of Tennessee. 00:16 Again, it's northbound on Highway 21, just about headed into Belle Plaine. 00:21 Located, make your own case. 00:22 Authority Iowa County Sheriff's Office, 10-53. 2026-11-10 16:53 UTC Traffic Iowa St, Hills, IA 52235 View on map