Concrete Batch Plant, Anaheim, CA
- Client: McCarthy Construction Company, Newport Beach, California
Wieland Acoustics had the opportunity to work with McCarthy Construction on a parking structure project in Anaheim, CA. In order to increase the efficiency of the construction process, McCarthy proposed that a concrete batch plant be located at the site. This would allow for greater flexibility and would eliminate up to 60 concrete truck deliveries each day from the streets surrounding the project site.
To supply the concrete batch plant with the materials it needed, McCarthy proposed three truck deliveries each night. The City of Anaheim was concerned about the noise levels that these nighttime aggregate deliveries would generate at hotels and residences in the vicinity of the construction site. Specifically, they wanted assurance that the noise levels would not exceed the City’s noise ordinance standard of 60 dB(A) at the property lines.
To satisfy the City’s concerns, McCarthy retained Wieland Acoustics to conduct noise measurements, and to determine what, if any, noise control measures would be needed in order to comply with the City’s noise standard. After surveying the layout of the construction site, Wieland Acoustics set up sound level meters at each of the adjacent noise-sensitive property lines. The timing of each aggregate drop was coordinated with McCarthy staff so that the noise levels could be accurately determined without interference from ambient sources in the area (mainly traffic and helicopters).
As a result of our measurements, we were able to conclude in our study that the proposed nighttime aggregate drops would not exceed the City’s noise ordinance standard at any residential location in the vicinity of the site. Thus, with the assistance of Wieland Acoustics, McCarthy Construction was able to begin operation of the concrete batch plant without having to install any noise control measures, an enormous savings in time and money.