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.
