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Abstract
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An ancient dam in Iran namely, Fariman dam which is located in Khorasan province in northeast of Iran. The dam is about 400 years old and has since long been used for flood control and serving the needs of irrigation and industries. The materials of the dam are consisted of, bricks, boulders, cobbles with lime, Sarooj (lime, ash and sand) and wood, was originally constructed to a height of 4m, but has subsequently been heightened twice, 300 and 72 years ago. Old dam height above foundation is 25 m. The dam has been rehabilitated due to overtopping occurring almost every year during the flood season and leakage through the dam body. The height of the dam has been increased by about 5 m together with leakage prevention measures for its upstream face as well as strengthening the old structure in 2001. The new crest level of the dam has been decided on the basis of 1000 years flood. The present paper deals with the design and construction aspects of the strengthening, heightening and leakage control measures of an ancient masonry dam along with project details. The past and present performance of the dam is also discussed in the paper.
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