Английская Википедия:Bruno Creek Tailings Impoundment

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Шаблон:Infobox dam The Bruno Creek Tailings Impoundment is a tailings dam on Bruno Creek, Шаблон:Convert southwest of Challis in Custer County, Idaho. It serves to store tailings for the nearby Thompson Creek Mine. At Шаблон:Convert tall, it is the second tallest center-line tailings dam in the world. In 2008, Phase 8 of the mine was approved which includes a raising of the dam to Шаблон:Convert. The dam is mainly composed of cycloned sand.[1] Currently, the dam stores Шаблон:Convert of tailings and the raise would increase storage to Шаблон:Convert. The downstream slope of the dam will be steepened from 3:1 to 2.75:1.[2] In 1994, it was discovered that acid mine drainage had been forming on the embankment since 1987.[3] Since seepage does occur at the dam, a system of wells was installed to monitor groundwater and a seepage return dam was constructed downstream.[2]

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