🇮🇷 Iran · Hydraulic works
Band-e Gargar Canal & Dam (Shushtar Darian Canal Head)
Sasanian (Shapur I–II) – UNESCO 1315 ensemble · Sasanian with Roman engineer captives
Sasanian Gargar diversion dam (210 m, 9 slots) feeding 47-km handmade canal watering Mianab plain.