Transmission line foundation analysis and quality control oversight.

Key Project Experience

Noxon Rapids Dam Drain Cleaning

Clear Stone Geo successfully cleared and cleaned blockages in vertical body and foundation drains within the Noxon Rapids Dam lowering concrete/rock interface pressures 15%. Utilizing the latest technology in hydro jetting this project was completed successfully without the need for drilling or destructive mechanisms.

Cabinet Gorge Piezometer Well Rehabilitation

Utilizing custom made non-destructive hydro jetting equipment Clear Stone Geo was able to clean and rehabilitate piezometer wells at Cabinet Gorge Dam. This drastically improved accuracy of readings through removal of deleterious material within the well increasing well response time and pressure readings.

Ground Penetrating Radar, GPR, Geophysics

Seneca Falls Geophysical Exploration

Clear Stone Geo successfully completed a geophysical survey utilizing the latest technology in seismic and GPR geophysical methods to map and identify potential seepage paths at the Seneca Falls Dam in upstate New York. 2D images were obtained and delivered showing potential pathways within the subsurface without the need for drilling, invasive, or destructive procedures.

Piedmont Dam Geophysical Survey

Clear stone Geo was able to identify and map historical buried rubble piles and potential seepage pathways at the Piedmont Dam in South Carolina. Utilizing GPR and seismic refractions techniques Clear stone Geo delivered depths and extents of buried construction debris as well as older seepage pathways through surficial non-destructive means.

$Seismic, Seismic Geophysics, Seismic Refraction$

Natural arch, Basin and Range National Monument, Geologic mapping, Geolgical

Basin and Range National Monument Geological Index

Clear Stone Geo was contracted to complete a Geologic Resource Index of the Basin and Range National Monument for the Bureau of Land Management in central eastern Nevada. The project consisted of geologic mapping and documenting several unique landforms and structures within the Monument as well as creation of a written geological guide to the monument for future visitors.

Noxon Well Reconstruction Project

Clear Stone Geo helped in the reconstruction, imaging, and documenting of 40+ wells within the Noxon Rapids Dam area effectively reverse engineering documents on the well through imaging and geologic desktop research Clear Stone Geo was successfully able to show redesigns on piezometer monitoring wells surrounding the Noxon Rapids Dam

Piezometer well construction, Piezometer well rehabilitation, Well imaging,

Dam construction, Water line, trenching, Project Management, Project quality control

Noxon Rapids Dam Water Line Installation

Clear Stone Geo managed and reported on compliance for the water line replacement project at Noxon Rapids Dam. Leveraging their extensive construction expertise, Clear Stone Geo supervised the installation of a new 200-foot municipal water line, ensuring that contractors adhered to and exceeded project specifications. Clear Stone Geo compiled and delivered a detailed compliance package, including installation records and documentation.

Morony Dam Foundation Drain and Piezometer Rehabilitation

Clear Stone Geo successfully cleaned and imaged twenty 4-inch foundation drains within Morony Dam inspection gallery, with bedrock conditions ranging from weak shale to moderately strong sandstone. Before-and-after imaging confirmed successful cleaning of all drains, with increased depths achieved through removal of accumulated sediment and debris. The project also included the full reconstruction of two piezometer wells, with installation of new PVC screen, riser, filter sand, bentonite seal, and surficial seal, along with bourdon gauges to support future monitoring.

Chelan Dam Piezometer and Drain Rehabilitation

Clear Stone Geo successfully cleaned twenty-six drains and piezometers across two locations on and within Chelan Dam— thirteen on the spillway deck and thirteen within the inspection gallery. Utilizing hydro jetting as the primary cleaning method, Clear Stone Geo cleared material bridges that had formed at varying depths within several piezometers and drains, removing several feet of accumulated material and restoring response time and reading accuracy.

Cushman Dam Spillway Foundation Drain Rehabilitation

Clear Stone Geo successfully imaged, cleaned, and reconstructed pressure monitoring equipment across foundation drains within the spillway gallery. All drains were cleaned using hydro jetting methods, with before-and-after imaging confirming successful results. Older standpipes were reconstructed with updated pressure monitoring equipment, including a modular bourdon gauge attachment system designed for quarterly pressure readings. A detailed report documenting the completed work was delivered to the City of Tacoma.