TRANSCANADA NORTHERN BORDER INC
gas_transmission Incident — — July 20, 2011
Incident Information
| Incident Date | July 20, 2011 |
| Operator | TRANSCANADA NORTHERN BORDER INC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 44.39328, -105.83870 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | DESIGN-, CONSTRUCTION-, INSTALLATION-, OR FABRICATION-RELATED |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $4,280,685 |
| Emergency Response | $10,000 |
| Other Costs | $1,990,000 |
Location Map
Incident Narrative
THE BISON PIPELINE EXPERIENCED A RUPTURE FAILURE AT APPROXIMATE MILEPOST 16.2 IN CAMPBELL COUNTY, WYOMING, AT ABOUT 1930 HOURS ON JULY 20, 2011. THERE AREA OF THE FAILURE WAS REMOTE FROM ROADS OR STRUCTURES RESULTING IN DAMAGE RESTRICTED TO THE PIPELINE RIGHT-OF-WAY. THERE WERE NO INJURIES OR FATALITIES. PRELIMINARY EXAMINATION OF THE PIPE IN THE FIELD AND LABORATORY HAS INDICATED THAT THE FAILURE MAY HAVE BEEN THE RESULT OF MECHANICAL DAMAGE INCURRED DURING PIPELINE INSTALLATION. THE RESULTS OF THE STUDIES HAVE BEEN FINALIZED AND HAVE BEEN SUBMITTED UNDER SEPARATE COVER, AS PART OF THE CORRECTIVE ACTION ORDER.
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.