Pipeline Worker Injured As Delfin LNG Line Ruptures Near Johnson Bayou, Louisiana

A 42-inch Delfin LNG pipeline ruptured during routine maintenance at 575 Gulf Beach Highway near Johnson Bayou and Holly Beach, Louisiana, on February 3. One pipeline worker was injured and transported to a hospital in Port Arthur, Texas. The federal Pipeline and Hazardous Materials Safety Administration (PHMSA) is investigating.

A rupture on a 42-inch line is not a minor event. It is the kind of failure that drives the broader fight over LNG infrastructure expansion along the Gulf Coast.

The injured worker's condition has not been publicly updated. The worker's name has not been released.

The maintenance context

The pipeline was undergoing routine maintenance at the time of the failure. That is significant. Pipeline failures during maintenance — versus during operation — typically point to procedural failures, lockout-tagout issues, or pressure-management errors rather than to long-term corrosion or weld degradation.

PHMSA's investigation will examine:

• Whether the maintenance procedure followed the operator's Integrity Management Plan
• Whether the section had been properly isolated and depressurized
• Whether the workers on site had the required training and certifications
• Whether the pipeline's recent inspection records show prior issues at the rupture location

The agency has up to nine months to issue a preliminary report on serious pipeline incidents.

The LNG buildout fight

The Gulf Coast LNG buildout has been one of the most contested energy infrastructure expansions in U.S. history. Delfin LNG is one of several proposed and operating projects in the region. Local environmental justice groups — including Healthy Gulf, the Louisiana Bucket Brigade, and Rise St. James — have raised long-standing concerns about the cumulative impact of LNG infrastructure on coastal communities.

The February rupture became one of the data points in that fight. Local Louisiana coverage framed the incident as evidence of the risks the buildout imposes on residents and on the pipeline workers themselves.

Pipeline worker fatalities and injuries — the broader pattern

PHMSA tracks pipeline incidents in its public database. The agency requires operators to report serious incidents within 30 days. The Pipeline Safety Trust, an independent watchdog, publishes monthly dashboards of incidents.

In 2024, the United Association of Plumbers and Pipefitters (UA) and several other building trades raised the question of whether the workforce expansion required to build out LNG infrastructure is outpacing the training and safety oversight needed to do the work safely. The Louisiana Department of Natural Resources and the Louisiana Department of Environmental Quality both have jurisdiction over different aspects of pipeline construction and operation in the state.

Delfin LNG said it is cooperating with the investigation.

The cause of the rupture has not been released. We'll publish more as findings are released.