Semi hauling hazardous material rolls on I-49

Joplin News First

9,000 gal tanker, contents labeled: anhydrous ammonia, which is flammable.

JASPER COUNTY, Mo. (West of Carthage) — About 11:45 PM Tuesday night, Jasper County 911 Dispatch began receiving alerts of a semi tanker rollover on I-49 near 54.2 MM northbound.

Carthage Fire Department, Jasper County Sheriff’s Deputies, Mercy EMS, Carthage Police responded. Missouri State Highway Patrol and MoDOT Emergency Response were notified.

Missouri State Highway Patrol tell us at the scene the tanker was carrying a full load of anhydrous ammonia.

Anhydrous ammonia is highly flammable, and if breathed in? It could be deadly. What is it used for?

Anhydrous ammonia is one of the most efficient and widely used sources of nitrogen for plant growth. The advantages of ammonia’s relatively easy application and ready availability have led to its increased use as a fertilizer on Missouri farms.

[NH3]It is a chemical made up of one part nitrogen (N) and three parts hydrogen (H3). The physical properties of this fertilizer make it one of the most potentially dangerous chemicals on the farm.

MU EXTENSION “Using Agricultural Anhydrous Ammonia”

Trooper A.J. Cook of Troop D states in the initial crash report the driver, 22-year-old, Clemence Twenter, of Pilot Grove, Missouri, was transported to Mercy Joplin, after suffering moderate injuries in the crash.

It was a dangerous situation at first. The cab of the truck was on fire. Carthage Fire Department controlled the fire quickly. The cab had separated from the tanker in the crash. The tanker and cab are both off the roadway approximately 150 feet.

The tanker is not leaking and did not catch fire. It is located about 1/2 mile north of the Central Ave exit.


Miller transport arrived at 4:55 AM to the scene from nearby Vinita, Oklahoma, to off-load the tank. Then M&M Wrecker will remove the empty 9,000 gal. tank from the crash scene. The axles were ripped from beneath during crash so it could take a little time.

EXPIRED EARLIER INFORMATION: Traffic is going to begin moving around 12:25 AM, however it will be slow through the area noted below near the crash scene as clean up will take a period of hours.

  • I-49 CLOSED / all traffic was temporarily halted: southbound and northbound
  • NORTH end at Civil War Road
  • SOUTH end at Central Ave

More information as Shannon Becker will be gathering information from the scene.

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