The Minzadayi facility had been heavily damaged by Israeli strikes on March 3, 2026, which targeted a covert site allegedly used for warhead research and development. Recent imagery shows that Iran has cleared rubble, repaired hillside damage, and restored access to the security perimeter. While the specific nuclear role of the Site 311 complex remains unconfirmed, analysts note the facility is being hardened as part of a broader effort to rebuild military and nuclear infrastructure.
Tuesday, October 20, 2026
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Iran Expands Site 311 and Rebuilds Minzadayi Nuclear Facilities
Geopolitics14 days ago
Tehran has resumed excavation at the Abyek underground complex, digging deeper into the terrain after nearly 10 years of inactivity. Satellite imagery from September and October 2026 shows this expansion at Site 311 is occurring alongside renewed vehicle movements at the Minzadayi compound northeast of Tehran. The Institute for Science and International Security warns that the activity at both sensitive locations indicates an effort by Iran to reconstitute nuclear weapons development capabilities.
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