Kebar Dam

 ( Buildings And Structures Completed In The 14th Century ) 

The Kebar Dam is a masonry arch dam on the Kebar River, Iran, located near a town of the same name, 23 km southeast of Qom, near the village of Zanburak in Jannatabad, Qom. The dam is an early arch dam and was the first arch dam constructed by the Mongol Empire, around 1300 AD.. SimScience. Retrieved 19 July 2010. It is the oldest surviving arch dam. The dam is 26m tall and 55m wide and was constructed for irrigation water supply. It was originally 24m tall but 2m of height was added in either the beginning or middle of the 17th century. The arch of the dam was of normal curvature with a radius of 35m and angle of 45-degrees. While the dam sat on limestone, its curve rested on two winged walls that served as abutments.

The downstream face of the dam was vertical until near its abutment where it slightly curves out. Near the dam's right, or western, abutment there is a 10m deep cylindrical hole which served as an intake and outlet works for the dam.

Jerry R. Rogers (2025). 078440738X, ASCE Publications. 078440738X

The outlet works is located at the bottom and is a larger opening but there are various smaller openings throughout the shaft to release water. The dam impounded a small reservoir that is no longer used and is mostly filled with silt. تالار گفتمان هخامنشیان , Achaemenid Forum متون پر بیننده, Viewable texts کبار قدیمی‌ترین سد جهان, Kebar oldest dam in the world رسانه مجازی نگاه , Virtual media

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