In one of the most visually devastating moments of the 2026 conflict, a Joint Direct Attack Munition (JDAM) precision bomb struck the B1 Bridge—one of the highest and most critical infrastructure projects in the Middle East—located in Karaj, just west of Tehran.

The strike, which occurred on April 2, 2026, was captured in a viral video that has since become a focal point of international debate over the targeting of civilian infrastructure.

The Moment of Impact

The footage reveals a horrifying scene: as several civilian vehicles were navigating the overpass, a 2,000-pound class JDAM impacted the structure with pinpoint accuracy. The explosion instantly severed a massive section of the bridge, sending plumes of black smoke into the air and raining debris onto the local village of Bileqan below.

Precision Strike Severs Tehran-Karaj Link | Philly PI

Reports from the ground, including accounts from the Fars News Agency, indicate that the strike occurred during Sizdah Be-dar (Nature Day), a traditional Iranian holiday when many families were outdoors or traveling.

Strategic Target or War Crime?

The U.S. military and President Donald Trump, who posted a video of the explosion on social media, defended the strike, characterizing the bridge as a “planned military supply route” essential for sustaining Iran’s ballistic missile and drone forces.

However, the human cost has drawn sharp condemnation:

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Casualties: Iranian officials confirmed 8 civilians killed and at least 95 injured.
Double-Tap Allegations: Local reports suggest a second strike occurred roughly an hour later, reportedly targeting first responders and medics who had arrived to assist victims of the initial blast.
Legal Debate: International legal experts have questioned the legality of the strike, noting that the bridge was still under construction and lacked immediate military activity at the time of the attack.

Regional Repercussions

The destruction of the B1 Bridge has severed a vital artery between the capital and its western neighbors, exacerbating the logistical crisis within Iran. In response, Tehran has issued warnings that it may retaliate by targeting regional infrastructure in surrounding nations.

As the conflict enters its second month, this strike remains a symbol of the “Stone Age” doctrine threatened by U.S. leadership—a strategy aimed at dismantling the industrial and logistical backbone of the nation.