# PHMSA Hazmat Incident I-2023090111 — AMMONIA ANHYDROUS — Manchester, IA

**Citation:** PHMSA Hazmat Incident I-2023090111  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2023-08-23  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2023-08-23 in Manchester, IA.

## Document text

PHMSA hazardous materials incident report I-2023090111.
Incident date: 2023-08-23.
Location: Manchester, IA.
Mode: Highway.
Carrier/reporter: THREE RIVERS FS.
Shipper: Sully.
Materials: UN1005; AMMONIA ANHYDROUS; hazard class 2.2; 164.7606 GCF released.
What failed: Tank Shell.
How failed: Burst or Ruptured.
Reported failure causes: Corrosion - Interior.
Reported result: Explosion, Vapor(Gas) Dispersion.
Reporter-submitted DOT Form 5800.1 data may be incomplete, corrected, supplemented, or misreported. A record, serious-incident classification, failure description, or relationship to a reporting rule is not a PHMSA causal finding, compliance determination, or finding of a violation.

## Provenance

- Official: Yes
- Source: <https://portalpublic.phmsa.dot.gov/analytics/saw.dll?Portal?PortalPath=/shared/Public%20Website%20Pages/_portal/Hazmat%20Incident%20Report%20Search>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `4052acff2d6dff8e0aca51ee14849780170f1058bf2b1ebdc5593e028e1b97f0`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-27T17:02:23.110Z
- Document slug: `phmsa-hazmat-incident-i-2023090111`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-2023090111",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": null,
  "rowCount": 1,
  "carrierReporterNames": [
    "THREE RIVERS FS"
  ],
  "shipperNames": [
    "Sully"
  ],
  "routes": [
    "1000 SOUTH 5TH STREET"
  ],
  "cities": [
    "Manchester"
  ],
  "states": [
    "IA"
  ],
  "originCities": [],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1005",
      "commodityName": "AMMONIA ANHYDROUS",
      "hazardousClass": "2.2",
      "quantityReleased": "164.7606",
      "unitOfMeasure": "GCF"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "NO MARKINGS PROVIDED",
      "outerMaterial": "Steel",
      "outerType": null,
      "outerCapacity": "193.836",
      "outerCapacityUnit": "GCF",
      "outerShipmentCount": "0",
      "outerFailedCount": "0",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    }
  ],
  "reportingRuleContext": [
    "171.15",
    "171.16"
  ],
  "caveat": "Reporter-submitted DOT Form 5800.1 data may be incomplete, corrected, supplemented, or misreported. A record, serious-incident classification, failure description, or relationship to a reporting rule is not a PHMSA causal finding, compliance determination, or finding of a violation.",
  "privacyCaveat": "The public CSV excludes preparer contact fields. Event Description is intentionally excluded from normalized records and search output to reduce incidental personal-information risk.",
  "jurisdiction": "US"
}
```