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View our comprehensive services: geotechnical engineering, engineering geology, hyrogeologic studies, geophysical surveys, environmental assessments and remediation, construction materials testing and inspection, materials laboratory testing.

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Click here for current worldwide earthquake data.

Current Worldwide Earthquake Data

 
The Patrick and Henderson Foundations for Wind Turbine Support pamphlet is available in PDF format, in both English and Chinese languages.  Please click on the following links.

Patrick and Henderson
Foundations for Wind Turbine Support (English version)

Patrick and Henderson
Foundations for Wind Turbine Support (Chinese version)

Pier Foundations Diagram
Pier Foundations
 
 
Rock or Pile Anchor Foundation Diagram
Rock or Pile Anchor Foundations

 

 

Patrick and Henderson, Inc. 
1965 Airport Drive
Bakersfield, California 93308

Mr. Allan Henderson, PE, GE
proprietor of patented design,
US Patent No. 5,586,417

(661) 391-9854  
phinc001@aol.com

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