Nuclear Canal: U.S. Cold War Plan to Bypass Iran with Thermonuclear Explosives

With global oil supplies strained and the Strait of Hormuz under Iranian threat, former U.S. House Speaker Newt Gingrich ignited controversy by suggesting nuclear explosives could carve a new shipping channel through friendly territory. His March 15, 2026, social media post linked to satirical content, yet the concept—using thermonuclear detonations to bypass geopolitical chokepoints—has deep roots in American strategic thinking.

The idea emerged during the 1956 Suez Crisis when Egypt’s seizure of the canal disrupted global trade. Edward Teller, father of the hydrogen bomb, and colleagues at Lawrence Radiation Laboratory saw nuclear energy as a solution. Under President Dwight D. Eisenhower’s “atoms for peace” initiative, Project Plowshare sought to harness “peaceful nuclear explosions” for massive earthmoving projects.

Teller envisioned nuclear blasts creating instant harbors and canals with minimal radioactive effects. The most ambitious proposal involved detonating 294 nuclear devices along Panama’s Darién isthmus—using explosive force equivalent to 166.4 million tons of TNT, far exceeding the Soviet “Tsar Bomba” test. Planners estimated 30,000 people, half Indigenous, would need relocation.

Despite scientific warnings about radioactive fallout and ecological disruption, including potential Atlantic-Pacific organism invasions after 3 million years of separation, the project persisted through the 1960s. President Lyndon B. Johnson’s administration funded extensive studies, with a $17.5 million congressional appropriation—roughly $185 million today.

The nuclear canal concept died by the early 1970s due to budget constraints from the Vietnam War, test ban treaty complications, and geological realities. Wet clay shale in the Darién route proved unsuitable for nuclear excavation.

Today, the notion of using nuclear bombs for infrastructure seems “wacky” and “insane” to modern observers. Yet as societies grapple with disruptive technologies like AI and cryptocurrency, the nuclear canal story serves as a cautionary tale about how powerful interests champion seemingly inevitable technological solutions within specific cultural contexts.

Christine Keiner, chair of the Department of Science, Technology, and Society at Rochester Institute of Technology, explores this history in her book “Deep Cut: Science, Power, and the Unbuilt Interoceanic Canal.” The article, republished from The Conversation under Creative Commons license, reminds us that today’s high-tech trends—whether blockchain or artificial intelligence—may one day appear equally shocking to future generations.

Intel provided by: Vance Sterling

Crisis & Global Conflict Director