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Courtesy | Brian Wimmer A dead trout along the American Fork River, which has been filled with silt from drainage of Tibble For Courtesy | Brian Wimmer Dead fish along the American Fork River, which has been filled with silt from drainage of Tibble Fork Re Al Hartmann | Tribune file photo Backhoes dug a trench around the side of Tibble Fork Reservoir in August 2016, enabling the inc | Courtesy of Natural Resources Conservation Service Tibble Fork Dam after completion of 2017 rehabilitation. | Courtesy of Natural Resources Conservation Service The Tibble Fork Damp prior to the rehabilitation construction in 2016. | Courtesy of Natural Resources Conservation Service Tibble Fork Dam at time of construction in 1964 Courtesy | Natural Resources Conservation Service Federal authorities closed Tibble Fork Reservoir, a popular American Fork Can | Courtesy of Natural Resources Conservation Service Tibble Fork Dam after completion of 2017 rehabilitation. | Courtesy of Natural Resources Conservation Service Tibble Fork Dam after completion of 2017 rehabilitation.