The Kurit Dam is a masonryarch dam located 34 km southeast of Tabas, Iran near the village of Kurit. The dam is an early arch dam constructed by the Mongolians around 1350 AD. The dam was originally 60m tall but 4m of height was added in 1850. The dam was constructed in a very narrow gorge and was the tallest in the world up until the early 20th century. The dam also contained a sophisticated water outlet system for its time. Currently, the dam does not impound a reservoir and a large segment of its lower downstream face has fallen off. Behind the dam, where the reservoir existed, is now full of silt with the exception of directly behind the upstream face which has been excavated.