The Gargar Bridge is one of 13 parts of the water system, which was registered on the UNESCO World Heritage List in 2009.
The Gargar Bridge collapsed as a result of heavy rainfall in early February. Afterward, the bridge was closed to car traffic and the Shushtar Municipality began construction of a temporary bridge in its place near the Mizan Weir.
Cultural heritage experts believe that the temporary bridge has violated the perimeter of the water system structure.
As a result, the Shushtar Municipality announced that the bridge would be removed by March 21, but the date has been postponed until July 22.