Band-e Gargar Canal & Dam (Shushtar Darian Canal Head)
Gargar Weir Canal · Shushtar Gargar Diversion · Daryun Canal Extension
Sasanian (Shapur I–II) – UNESCO 1315 ensemble·Sasanian with Roman engineer captives·🇮🇷 Khuzestan Province, Shushtar County, Karun River, Band-e Gargar–Daryun reach 2 km E of Shushtar citadel, Iran
About
About Band-e Gargar Canal & Dam (Shushtar Darian Canal Head)
Sasanian diversion dam–canal (68 m asl) on the Karun River 2 km east of Shushtar citadel, Khuzestan, Iran—first head of the Daryun (Darian) canal and second element of Shushtar UNESCO system (1315) besides the Roman-built Kaisar. Band-e Gargar is 210-m mortared rubble dam 5 m high with 9 rock-cut regulation slots feeding the Handmade Gargar Canal (47 km long, 12 m wide, 5 m deep) that waters the 40,000 ha Mianab plain between Gargar and Shatit anabranches.
W. Kleiss measured Gargar canal gradient 1:3,200 with precision leveling proving Sasanian survey. Built under Shapur I–II (260-379 CE) by same Roman captive workforce as Kaisar? Gargar feeds downstream Mizan weir. Still supplies Shushtar sugar-cane. Threatened by Karun damming Gotvand silting.
Why it mattersSecond head of UNESCO system; splits Karun into Gargar–Shatit anabranches creating artificial Mianab island.
Open questions
Mysteries & theories
Mysteries
- 01Gargar vs Kaisar chronology priority
Theories
- 01Roman captives attribution legend vs Sasanian engineering
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c.260-379 CE
- Period
- Sasanian (Shapur I–II) – UNESCO 1315 ensemble
- Culture
- Sasanian with Roman engineer captives
- Builders
- Shapur I–II hydraulic corps + Valerian captives (tradition)
- Purpose
- Karun bifurcation to irrigate Mianab island 40,000 ha + Shushtar urb waterwheel mill race
- Abandoned
- Continuous use
- Rediscovered
- 1936 Stein; 1968 Kleiss survey; 2009 UNESCO 1315
- Excavation
- Excavation ongoing
260
Shapur I (trad. Roman captives) erects Gargar dam + canal
379
Shapur II restoration inscription
2009
UNESCO Shushtar Hydraulic System 1315 includes Gargar
On the ground
Structures & features
32.0550° N · 48.8550° E · 68 m · 2 mapped features
Band-e Gargar Diversion Dam
dam210-m Sasanian rubble dam with 9 regulation slots on Karun 2 km E Shushtar
32.0550° N · 48.8550° EGargar Handmade Canal Reach (km 12)
canal12-m wide 5-m deep canal 47 km to Mianab at 1:3,200 gradient
32.0480° N · 48.8620° E