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  • Just Published: Pile Driving Effects on Fish

    The Caltrans "Technical Guidance for Assessment and Mitigation of the Hydroacoustic Effects of Pile Driving on Fish" is now available! I&R staff James Retyff and Keith Pommerenck are co-authors on this reference manual, which provides guidance related to the environmental permitting of in-water pile driving projects and includes a sizable compendium of pile driving sound data.

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    Illingworth & Rodkin has expanded its presence in the Rocky Mountain Region...learn more

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