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Anhydrous Ammonia Barge Strikes Side Wall of Lock 25 of the Mississippi River, Winfield, MO

Bradley Island Public Use Area, Winfield, MO 63389, USA | 2023-Mar-03

Initial Notification: On March 3, 2023, the USCG Sector Upper Mississippi River contacted the NOAA SSC regarding an anhydrous ammonia barge that struck the side wall in Lock 25 (MM 241.2) of the MS River. The barge is carrying 2500 tons of anhydrous ammonia. No release has been reported. The SSC provided hazard analysis and initial isolation and protective action distances as well as technical information to assist in monitoring and recovery efforts.

Incident Details
Primary threat:Chemical
Products of concern:anhydrous ammonia
Total amount at risk of spill: 2500 tons
Latitude (approximate): 39° 0.32′ North
Longitude (approximate): 90° 41.41′ West