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Copper Mountain Solar Plant Phases I & II

Location:  Boulder City, Nevada

Client:  First Solar, Inc.


Completion:  2015

Taney Engineering was selected by First Solar Electric to provide hydrology and grading designs necessary to flood protect and fence a 400-acre planned 48MW photovoltaic solar power generation facility. The facility is located in the 3000-acre El Dorado Valley Solar Power Master Plan, adjacent to the transmission corridor for southern California. The project involved complex drainage facility designs to handle the uncontrolled upstream flows from a 16 square mile area. Water flow impacting along the south boundary was collected with debris basins and controlled the outflow via a gabion wall that acts as a weir. The controlled weir allowed the developer to minimize costs for flood control downstream.

Cooper Mountain II consisted of site grading for additional installation of solar panels, additional fencing, electrical design for temporary move-on areas, drainage analyses, drainage facilities, and earthwork plans.



  • Boundary Survey

  • Aerial Topographic Survey

  • ALTA/NSPS Land Title Survey

  • Drainage Study

  • Hydrology and Hydraulics Update

  • Storm Water Prevention Plan (SWPPP)

  • Design of 6700 LF Sediment Debris Basin

  • Channel Storm System

  • Letter of Map Revision (LOMR)

  • Grading Plans

  • Details and Sections

  • Earthwork Quantities

  • Fencing Plan

  • Electrical Design for Move-On Area

  • As-Built Plans

  • Construction Administration

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