# PHMSA Hazmat Incident I-1976030481 — FLAMMABLE LIQUIDS, N.O.S. — MIKOMA, MS

**Citation:** PHMSA Hazmat Incident I-1976030481  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1976-03-10  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 1976-03-10 in MIKOMA, MS.

## Document text

PHMSA hazardous materials incident report I-1976030481.
Incident date: 1976-03-10.
Location: MIKOMA, MS.
Mode: Rail.
Carrier/reporter: ILLINOIS CENTRAL GULF RAILROAD.
Shipper: EXXON CHEMICAL CO.
Materials: UN1993; FLAMMABLE LIQUIDS, N.O.S.; hazard class 3; 20000 LGA released.
How failed: Punctured.
Reported failure causes: Derailment; Vehicular Crash or Accident Damage.
Reported result: Spillage, Fire.
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://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=PP%2BHPVOzKtexl2iFp35EYg%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `e0067269fbe97c1798546d84182e6b80b01b2ed0b36b5bced9b1c6a050709a3c`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-25T11:00:40.793Z
- Document slug: `phmsa-hazmat-incident-i-1976030481`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-1976030481",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=PP%2BHPVOzKtexl2iFp35EYg%3D%3D",
  "rowCount": 1,
  "carrierReporterNames": [
    "ILLINOIS CENTRAL GULF RAILROAD"
  ],
  "shipperNames": [
    "EXXON CHEMICAL CO"
  ],
  "routes": [],
  "cities": [
    "MIKOMA"
  ],
  "states": [
    "MS"
  ],
  "originCities": [
    "NORTH BATON ROUGE"
  ],
  "modes": [
    "Rail"
  ],
  "materials": [
    {
      "identificationNumber": "UN1993",
      "commodityName": "FLAMMABLE LIQUIDS, N.O.S.",
      "hazardousClass": "3",
      "quantityReleased": "20000",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "20000",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "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"
}
```