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Dams Deformation Surveys

SERVICESLand Surveying | LOCATION: Rock Island | CLIENT SECTORS: Dams & PUDs


We perform precise bi-annual horizontal alignment and vertical control measurements of the following dams for the Chelan County PUD:

  • Rock Island Dam (FERC Project Number 943)
  • Rocky Reach Dam (FERC Project Number 2145)
  • Lake Chelan Dam (FERC project Number 637)
  • Tumwater Dam from 2004 to present day

Surveillance system measurements are performed under previously established procedures and protocol. Responsibilities include:

  • Project management and security clearance oversight
  • Conventional and GPS measurements
  • Data analysis, report preparation and delivery to the District
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