TENNESSEE GAS PIPELINE CO (EL PASO)

gas_transmission Incident —

Incident Information

Report Date
OperatorTENNESSEE GAS PIPELINE CO (EL PASO)
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates39.46607, -82.02352

Cause

CauseNATURAL FORCE DAMAGE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

TENNESSEE GAS PIPELINE (TGP) WAS NOTIFIED BY A LOCAL RESIDENT OF A RUPTURE AND A FIRE ON ITS 200-4 PIPELINE IN MORGAN COUNTY, OHIO, NOVEMBER 16, 2011. TGP PERSONNEL RESPONDED AND ISOLATED THE VALVE SECTION. THERE WERE NO FATALITIES NOR INJURIES REQUIRING HOSPITALIZATION. INVESTIGATION INTO THE CAUSE OF THE RUPTURE RESULTED IN THE CONCLUSION THAT THE FAILURE WAS DUE TO EXCESSIVE STRAIN FROM THE ONGOING PROGRESSION OF AN EARTH LANDSLIDE ON ONE OF THE PIPELINE'S GIRTH WELDS AND SUBSEQUENT FAILURE OF THE WELD. A CRACK IN THE GIRTH WELD ACTED AS A STRESS CONCENTRATOR AND THE DISPLACEMENT (STRAIN) OF THE PIPELINE OCCURRED THROUGH THE LANDSLIDE. EVEN IN THE ABSENCE OF A CRACK IN THE GIRTH WELD, THE LANDSLIDE LIKELY COULD HAVE RESULTED IN A PIPELINE FAILURE AT A LATER TIME IF THE LANDSLIDE REMAINED UNDETECTED AND UNMITIGATED. PART A - PIPELINE RESTART DATE ADDED. PART C - THERE WAS COMPLETE SEPARATION OF THE PIPELINE. PART B - REVISED PIPELINE STATIONING FOR INCIDENT LOCATION (MHM). PART B - RE-ENTERED ENTIRE PART B INFORMATION DELETED BY PHMSA (MHM)

About This Pipeline Incident

Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.

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