Fenstermaker Underwater Acoustics Tech

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Bookmark this page for access to all of our white papers, case studies and additional resources.

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Yelm Hydro Electric Project – Underwater Remote Sensing Investigations
Added May 17, 2018
Ken LaBry Chief Scientist, Underwater Acoustics International

Yelm Case StudyThe Yelm Hydro Electric Project services the City of Centralia, Washington. The Yelm Hydro Project is located along the pristine Nisqually River.     The Yelm Hydroelectric Project is a run-of-the-river hydropower generation facility consisting of a diversion dam on the Nisqually River, an intake structure at the dam, 9.1 miles of diversion […]

In This Document
  • Investigation of canal bottom for indications of seepage
  • Water flow analysts
  • Acoustic imaging of spillway components
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Oroville Dam Spillway Incident – Independent Forensic Team Report
Added March 1, 2018 · 85 pages
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

In March of 2017, Underwater Acoustics International was called to assist with the response to the Oroville Dam primary and secondary spillway failure incident. The UAI team along with underwater contractor, DRS Marine, performed an investigation of the upstream face of the gated spillway structure and the adjoining reservoir approach to look for any damage or erosion […]

In This Document
  • Analysis of investigations of each gate bay
  • Information about current conditions of underwater components at the dam
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Underwater Acoustic Remote Sensing For Predictive Maintenance Modeling of Dams
Added November 10, 2017
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

We are now living in a time where robotics and remote sensing, are utilized to unburden human activity from risk exposure and repetitive effort as well as to provide cataloged and characterized information from remote sensing observation, which is used to make better decisions in all aspects of society from medicine to transportation and civil […]

In This Document
  • Proven scientific methodology
  • Most comprehensive investigation of all underwater structures
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Application of Underwater Acoustic Remote Sensing for Underwater Examination of Trash Racks and Intake Screens
Added October 24, 2017
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

Major industrial facilities from water resource dams to coffee processing and packaging plants all have the need to utilize water as a cooling source for the power sources of the mechanized automation that they use to provide the product that is their reason for existence. Some, such as hydroelectric plants and other types of electricity […]

In This Document
  • Clear view of debris accumulation
  • Safer method of investigation
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Application of Underwater Acoustic Remote Sensing Examination of Flooded Penstocks, Tunnels and Water Intakes
Added October 24, 2017
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

  Large industrial facilities, from utilities producing electricity to manufacturing plants and chemical refineries, all have the need to utilize water for either power generation or as a cooling source for the power sources and machinery of the mechanized automation they use to provide the product that is their reason for existence. Some, such as […]

In This Document
  • Reliable methodology for repetitive inspections
  • Predictive maintenance modeling important safety measure
  • Dramatically minimizes risk
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Application OF Underwater Acoustic Remote Sensing Dam and Impoundment System Examination Case Study Examples
Added October 24, 2017
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

The advanced age of the Dam infrastructure in the United States and the general lack of attention that this infrastructure has received since beginning operation is requiring a comprehensive examination to provide information for evaluation of critical needs and to develop monitoring plans in order to acquire the analytical information for predictive maintenance. The following […]

In This Document
  • Bayou D'Arbonne Dam
  • Cross Lake Dam
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Underwater Acoustic Remote Sensing For Predictive Maintenance Modeling of Dams
Added September 5, 2017
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

Kenneth J. LaBry, Chief Scientist, Acoustics, Underwater Acoustics International   Introduction We are now living in a time where robotics and remote sensing, are utilized to unburden human activity from risk exposure and repetitive effort as well as to provide cataloged and characterized information from remote sensing observation, which is used to make better decisions in […]

In This Document
  • Aging Dam Structures
  • Applications
  • Case Studies
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D’Arbonne Dam & Spillway
Added December 8, 2016
Kenneth J. LaBry Chief Scientist, Underwater Acoustics

LA DOTD contracted Fenstermaker to perform a comprehensive survey and inspection of D’Arbonne Dam. By applying breakthrough underwater acoustic imaging and profiling, Fenstermaker gathered information that was vital in devising a plan for the maintenance and repair of the system.

In This Document
  • Comprehensive three dimensional composite model of dam system
  • Information collected for comparative analysis
  • Georeferenced acoustic data

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