SU0007300 - Laserfiche WebLink

Home Browse Search

NOISE MITIGATION OPTIONS As noted above, noise impacts associated with nighttime asphalt plant equipment usage is not anticipated to result in adverse noise impacts. However, project-related heavy truck passages on East River Road may result in adverse noise impacts relative to sleep disturbance should bedroom windows of the nearest residences be open and facing the roadway during nighttime — operations. Due to the potential for project-related noise impacts associated with nighttime heavy truck usage on East River Road, consideration of noise mitigation options is recommended for this project. ' There are three general options for noise mitigation, consisting of treatment of the noise source, the sensitive receiver, or the path in between. A discussion of each general type of noise .. mitigation and options for implementation of such measures follows: Noise Mitigation for the Source For this project, treatment of the noise source would involve reducing the noise generation of the predominant noise source, which is heavy truck passbys. The following source noise . mitigation options are offered for consideration: 1. Limitations on the number of nights per year expanded hours of operations would ... occur. Historical data from 1999 to 2005 pertaining to nighttime operations at the Munn & Perkins facility indicate that the greatest number of nighttime operations occurred in 2004, when there were 26 nights of asphalt plant operation and heavy truck load-out. �.. The average number of night operations between 1999 and 2005 was 11 nights, or approximately 3% of the total number of nights per year. While nighttime operations have varied in the past, these data indicate that such operations have historically been ... very low. Although the number of nighttime paving projects may increase in the future as a greater emphasis is placed on safety, even a tripling of night paving projects over historic averages would result in night paving activities during fewer than 10% of the nights per year (1 in 36). Because the number of nights per year which have been and which likely will be affected by this application are statistically very low, placing a limitation on the number of nights available for such operations would not yield a �. meaningful benefit and i,= ; cicc.tr�t�� icct . Environmental Noise Analysis Munn&Perkins Expanded Hours of Operations— San Joaquin County Page 37