Eight people were killed and 95 injured when US forces struck the B1 highway bridge between Karaj and Tehran on 3 April, according to Iranian state television. The bridge , the Middle East's tallest at 136 metres, inaugurated earlier in 2026 , carried civilian commuter traffic between Iran's fifth-largest city and the capital.
CENTCOM described the target as a supply line to drone and missile units. That framing sits uneasily alongside the casualty profile: eight dead on a road built for cars, not convoys. Every prior bridge strike in this campaign had targeted military or industrial supply corridors. The B1 carried commuters. The shift is substantive, not semantic.
The strike also lands against a specific backdrop. CENTCOM has reported 12,300+ targets struck since the campaign began, and the classification of each as military infrastructure has progressively widened. A 136-metre commuter bridge between two major cities is a categorically different kind of target from an ammunition depot or missile storage site.
Whether the supply-line designation is operationally accurate or legally sufficient will be contested. What is not contested is the casualty count, reported by Iranian state television and not yet disputed by CENTCOM.
