# Enbridge Line 5 pipeline leak in Wisconsin

> Live situation record from CLSTR: https://clstr.news/situations/enbridge-line-5-pipeline-leak-in-wisconsin
> Updated: 2026-08-28T20:44:03.000Z. Sources: 9. Developments: 3.

On August 25, 2026, an unoccupied semi-truck struck an open section of the Enbridge Line 5 pipeline near Saxon in Iron County, northern Wisconsin. The collision caused a massive leak of liquid natural gases, including propane and butane, which created a dense, fog-like cloud. In response, authorities implemented emergency measures such as preemptive evacuations of nearby homes, power outages, and a temporary no-fly zone. Emergency crews were able to isolate the damaged section, and no injuries were reported.

The incident occurred near the Bad River Reservation close to Lake Superior. The spill has reignited long-standing tensions regarding the safety of the 73-year-old pipeline and its potential environmental impact on the Great Lakes. Indigenous activists and tribal leaders have expressed ongoing opposition to the pipeline, calling for government-to-government discussions to address environmental threats.

Following the leak, Wisconsin Governor Tony Evers expressed concern, and the Wisconsin Department of Natural Resources requested that Enbridge halt work in the area pending an investigation. In Michigan, Governor Gretchen Whitmer has filed a legal brief seeking the removal of an underwater section of the pipeline. Enbridge is currently working to remove remaining vapors and aims to restore service to the pipeline by September 5. While the company maintains the pipeline meets safety standards and supports a project to encase underwater sections in a tunnel, the event has intensified political scrutiny as midterm elections approach.

## Timeline

### 2026-08-28: Enbridge Line 5 pipeline leak sparks safety investigations

A truck accident caused a natural gas leak on Enbridge’s Line 5 pipeline in Wisconsin, prompting evacuations and renewed political calls for pipeline safety reviews and shutdowns.

2 sources. https://clstr.news/cluster/enbridge-line-5-pipeline-leak-sparks-safety-investigations

### 2026-08-26: Enbridge Line 5 pipeline spills natural gas liquids in Wisconsin

Enbridge’s Line 5 pipeline spilled natural gas liquids in northern Wisconsin following a vehicle strike, amid ongoing Indigenous protests and legal battles over the pipeline’s impact on the Great Lakes.

5 sources. https://clstr.news/cluster/enbridge-line-5-pipeline-spills-natural-gas-liquids-in-wisconsin

### 2026-08-26: Wisconsin natural gas pipeline struck by truck causing major leak

A truck collision with an Enbridge natural gas pipeline in northern Wisconsin caused a major liquid gas leak, leading to evacuations, power cuts, and a no-fly zone in Iron County.

2 sources. https://clstr.news/cluster/wisconsin-natural-gas-pipeline-struck-by-truck-causing-major-leak

---
Cite as: Enbridge Line 5 pipeline leak in Wisconsin. CLSTR, https://clstr.news/situations/enbridge-line-5-pipeline-leak-in-wisconsin