This project will diminish the strain on the Keechelus Dam and create the opportunity for the anticipated Kachess Drought Relief Pumping Plant, to deliver water for agriculture and domestic and municipal uses during a drought.
Before the construction of the tunnel that will ultimately move water from the Keechelus Reservoir to the Kachess Reservoir, structural studies needed to be conducted. With the aid of John Lui, PhD. and his company Global Geophysics, LLC., slope stability studies were underway to collect the true orientation and dip direction of the rock in several boreholes.
The information was collected using Robertson Geo’s High Resolution Optical Televiewer (Hi-OPTV) and High Resolution Acoustic Televiewer (HRAT) equipment. The equipment was deployed using Robertson Geo’s Mini Winch. Global Geophysics, LLC collected information from many boreholes both on land and utilizing a barge on the lake.
