Environmental

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

California High Speed Rail San Francisco to San Jose DEIR/DEIS

Bay Area, California

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

Loch Lomond Marina EIR

San Rafael, California

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

Bayview Waterfront EIR – Hunters Point Shipyard

San Francisco, California

LRT vehicle generated wayside noise and groundborne vibration, and evaluation of noise and vibration to corridor community including cumulative noise impacts.

Santa Clara VTA Capital Light Rail Corridor EIR

San Jose, California

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

Claremont Tunnel Seismic Improvements EIR/EIS

Oakland, 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.

Fort Cady Road Quarry Noise Impact Study

San Bernardino County, California

Construction of a new 132-inch water supply tunnel. Environmental noise and vibration impact assessments for sensitive receptors from TBM and at-grade portal areas.

Irvington Tunnel / Alameda Siphons

Fremont, California

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

Puente Hills Intermodal Facility DEIR

Industry, California

Noise and vibration analysis and applicable regulations to assess impact with respect to NEPA/SEPA.

Millennium Bulk Terminal

Longview, Washington

Conducted hydroacoustic vibration monitoring during construction and pile driving of a new bridge.

Antlers Bridge Replacement

Shasta Lake, California

Monitoring and documenting baseline and construction noise and vibration from pile driving and hydroacoustic monitoring for the cofferdam.

Freeport Regional Water Intake Facilities

Sacramento, California

Evaluated environmental impacts in accordance with CEQA guidelines, and identified feasible mitigation measures to lessen or avoid such impacts.

Sacramento Railyards Specific Plan EIR

Sacramento, California