KIDDIE ACADEMY DAYCARE

Kiddie Academy Childcare relied on CSDA to prepare an environmental noise study for their new location in San Jose, CA. Acousticians measured and calculated the existing environmental noise exposure at the site and evaluated interior noise levels inside the daycare center. As part of the study, CSDA calculated the expected noise generated by the children on the playground to neighboring residences to determine if a noise variance from the City was necessary to meet the San Jose Zoning Ordinance. We recommended mitigation measures, such as sound-rated windows and doors, to reduce noise generated by traffic on Almaden Expressway, and to meet CalGreen and City requirements.

PRESIDIO KNOLLS SCHOOL

CSDA conducted an environmental noise study for the planned Presidio Knolls School campus expansion in San Francisco, California. The project will replace existing campus buildings with new classroom buildings and a music building. CSDA identified noise reduction measures needed for the new proposed buildings to meet City of San Francisco and State of California noise criteria.

 

VIBRA HOSPITAL CHILLER REPLACEMENT

CSDA worked with Puchlik Design Associates, Inc. to analyze noise levels for compliance with local code requirements for a temporary chiller at Vibra Hospital in Folsom, California. This chiller was online for several months during sourcing and installation of the new permanent chiller. CSDA’s analysis included ambient noise measurements at the project site, calculation of anticipated noise levels due to temporary chiller operation, and recommendations for reduction of noise transfer to surrounding residential properties.

PG&E CONTROL CENTER FACILITY

CSDA provided acoustical consulting services for Cushman & Wakefield of California.
The City of Rocklin requested an analysis be conducted to measure noise created by
proposed air handlers, emergency generators, and chillers to the project property
lines. This analysis was needed to verify compliance with the City’s acoustical
standards.

CSDA reviewed the current site plan and planned equipment yard. We calculated
the noise reduction provided by the CMU wall around the yard and provided a
performance related specification for the equipment to meet the City’s noise
standard. Upon completion of the study, CSDA provided the City with a report
summarizing our calculations and recommendations.

METRO TRANSIT: CRENSHAW/LAX CONNECTOR

CSDA is working with Kleinfelder/Metro as the acoustical engineer for the
construction of the Crenshaw Line. The scope includes review of the contractor’s RFIs and
submittals with respect to construction noise control, and review of noise monitoring
plans and reports. CSDA is working alongside the contractor’s acoustical engineer in
reducing construction noise to the adjacent sensitive receivers (e.g., residences).

The Crenshaw Line/LAX Connector Transit Project is an 8.5-mile light-rail line, with
eight stations, including Leimert Park and Hindry. The rail line will run between the
Expo Line on Exposition Blvd. and the Metro Green Line. It will consist of above-ground
(La Brea Ave./La Cienega Blvd. and 405 Freeway/Century Blvd.) and tunneled
segments (Exposition Blvd. to 48th St/59th Pl to 67th St/Los Angeles International
Airport South Runways) with all remaining areas at ground level.