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Caption: The chart above shows computed active road erosion by type for the Upper Middle Trinity Watershed as of 2001. The different colored bars represent the various erosion source categories, while the total length of the bars show the total mass of sediment from all erosion sources. High sediment yields are a function of sub-watershed that contain high road miles, such as, East Fork Trinity River, East Side Trinity Lake, Stuarts Arm area, and the Upper Trinity River. On average cutbank erosion and road surfaces yield the highest amounts of sediment, followed other erosion sources. The data are from the Trinity River Sediment Budget Report (GMA 2001). See Info Links for methods and other background information.
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