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Sedimentation

Sedimentation incorporates the processes of erosion, transportation, and deposition of sediment by water (and air). These processes have occurred naturally throughout geologic time, but may be enhanced by man’s activities such as road and reservoir construction, logging, mining, and livestock grazing. Land management, containment structures, and channel modifications help curb sedimentation. Capabilities of States West in sedimentation include:

Services Provided

  • Development of Watershed Erosion Control Plans  

  • Reservoir Sedimentation Studies  

  • River Channel and Canal Aggradation, Degradation, and Stabilization Analysis  

  • Erosion Rate and Sediment Transport Determination  

  • Mined Land Reclamation Rehabilitation  

  • Geomorphologic Analysis for Watershed and Channel Re-establishment  

  • Roadway and Pipeline Right-of-way Sediment Control Planning.  

  • Field Data Collection and Analysis  

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    Project Report

    1 of 4

    Beaver Creek Dam and Reservoir Project -- Weston County Wyoming

    Client Information
    Bear Lodge, Ltd 
    Mr. Ralph Goodsen 
    President 
    (307) 283-3633 

    Completion Date:    1990

    Project Description   

    Beaver Creek Reservoir was proposed as a recreation reservoir located near Newcastle in Weston County, Wyoming. Basin hydrology was assessed for an area characterized by intermittent and ephemeral stream flows with few gauging stations. A reservoir and basin operation model was developed, which incorporated water rights and daily stream flow components. Based upon the study, an 8,000 acre-foot capacity reservoir was selected. Because the proposed reservoir would be located on a stream with poor water  quality and high sediment load, reservoir quality and sedimentation studies were performed. Using available quality data from a nearby gage, a 45-year daily total dissolved solids (TDS) record was synthesized for the reservoir site. A water quality component was programmed into the operation model, and reservoir TDS and reservoir release TDS were simulated for the 45-year period. 
     
    Services Provided
    Hydrologic investigation including water supply, water quality, reservoir
    sedimentation, probable maximum flood, and dam break analysis.

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    Page: 1 of 4

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