Band-i Mizan
Shushtar, Iran
Band-i Mizan is a weir situated at the head of the Ab-i Girgir canal in Shushtar. The weir was originally constructed in the Sasanian period but has been renovated since, and a new esplanade has been constructed along the riverbank adjoining it. The weir may have originally been part of a larger project sponsored by the Sasanians to construct bridges, weirs, canals, and mills throughout the Khuzistan region.

The weir controls the flow of water into the Ab-i Girgir, a canal dug during the Sasanian period or possibly earlier that diverts waters from the Karun River through a gorge on the east side of Shushtar. The waters of the Ab-i Girgir were dammed further down the gorge to power a number of mills below. The weir has nine openings through which water from the Karun enters the canal. 

Sources:

Graadt van Roggen, D. L. “Notice sur les anciens travaux hydrauliques en Susiane.” In Mémoires de la Mission archéologique de Perse. Mémories de la Délégation en Perse, Tome 7: Recherches archéologiques. Duxieme série:167–207. Paris: Ernest Leroux, 1905.
Location
Shushtar, Iran
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Associated Names
Part of Site
Events
originally constructed ca. 4th-6th c. CE, with many renovations thereafter
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Variant Names
Band-i Mizan