Vehicle crash on eastbound Interstate 40 near Mason Heard on: St. Louis County Fire and EMS - South 00:29 00:00 2215, 3537, and 3535. 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 2215, 3537, and 3535. 00:04 Vehicle accident in West County, eastbound Interstate 40 east of Mason Road. 00:09 2215, 3537, and 3535. 00:14 Respond on Fire Task 22. 00:17 Vehicle accident in West County, eastbound Interstate 40 east of Mason Road. 00:22 Twenty-two 15 , thirty-five thirty-seven, and thirty-five thirty-five, respond on fire task twenty-two. 8/11/2026 10:32 AM Traffic Mason Knoll Rd, Town and Country, MO 63131 View on map