Environmental

San Francisco, California Noise and vibration monitoring and daily reporting during construction for new dedicated bus lanes on one of San Francisco’s busiest corridors.

Bay Area, California Noise and vibration services for the 47-mile corridor including extensive ambient measurement surveys and determining need for and type of mitigation measures.

San Jose, California LRT vehicle generated wayside noise and groundborne vibration measurement, and evaluation of noise and vibration to potential community noise impacts.

Shasta Lake, California Conducted hydroacoustic vibration monitoring during construction and pile driving of a new bridge.

San Rafael, California Acoustical analyses and reports to satisfy the requirements of the California Building Code (Title 24) on nearby residential development.

San Francisco, California Operational noise impact study for proposed football stadium. Noise predictions were made for stadium loudspeakers and crowd noise.

Oakland, California Analyzed potential impacts of groundborne noise and vibration on residences from portal and tunnel construction, and community long-term construction noise monitoring.

San Bernardino County, California Evaluated potential noise impacts from proposed haul routes from the quarry to the job site. Site noise sources included excavation/hauling vehicles and equipment.

Fremont, California New 132-inch water supply tunnel. Environmental noise and vibration impact assessments for sensitive receptors from TBM and at-grade portal areas.

Industry, California Evaluated potential noise impacts and mitigation measures. These included implementation of a Quiet Zone for heavy rail and the construction of sound walls.