Event
- Event ID
- 480
- Quality
- Description
- A liquid hydrogen tanker overturned and rolled over on the ramp at the interconnection between to highways. A pressure gauge on the left side of the trailer was ruptured and leaked liquid hydrogen. Approximately 100 to 200 cubic feet was released before a local fire department team turned off the valve isolating the broken line.
Company officials were notified and responded to the scene. The accident scene was blocked off and all public access to the ramps was denied until the LH2 tank was reinstalled upright and removed from the scene.
Since also diesel fuel leaked from the left saddle tank onto the ground (approximately 15 gallons), a contractor was called to the scene to clean up this spill. - Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- Leak No Ignition (No additional details provided)
- Macro-region
- North America
- Country
- United States
- Date
- Main component involved?
- Piping (Gauge)
- How was it involved?
- Rupture
- Initiating cause
- Impact, Rollover, Crash
- Root causes
- Root CAUSE analysis
- The INITIAL CAUSE was the rupture of the connection between a presure gauge and the tank.
The ROOT CAUSE a road accident, probabl ycasued by human error.
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- LH2 tanker
- Hydrogen supply chain stage
- Hydrogen Transport (No additional details provided)
- All components affected
- pressure gauge
- Location type
- Open
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Environmental damage
- 0
- Currency
- US$
- Property loss (onsite)
- 106000
- Property loss (offsite)
- 0
- Post-event summary
- 200 to 400 kg of hydrogen were lost.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Released amount
- 0.25
- Presumed ignition source
- No ignition
References
- Reference & weblink
Incident I-1996091218 of the US Pipeline and Hazardous Materials Safety Administration PHMSA (no individual report): <br />
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%… />
(accessed September 2024)
JRC assessment
- Sources categories
- PHMSA
