Sacramento Broadway Bridge Project

The City of West Sacramento, in cooperation with the City of Sacramento and the California Department of Transportation (Caltrans), proposes to construct a new bridge over the Sacramento River south of the Pioneer Bridge (US 50) to provide local inter-connectivity across the river and between neighborhoods. The new connection would serve multiple modes of transportation and comply with current American Association of State Highway and Transportation Officials (AASHTO), Caltrans, and local agency design standards.

On behalf of Caltrans, HMMH conducted a traffic noise impact study to assess the potential effects of the Broadway Bridge Project at nearby noise-sensitive receptors. The purpose of the study was to identify potential traffic noise impacts resulting from the project and to conduct preliminary consideration of noise abatement measures in accordance with Federal Highway Administration (FHWA), Caltrans, and County of Sacramento noise assessment guidelines. The project was also assessed according to California Environmental Quality Act (CEQA) standards.

HMMH conducted short-term noise measurements at four locations, assessed potential noise impacts using the FHWA Traffic Noise Model (TNM) at three receptors, and conducted noise abatement analysis of the Caltrans noise abatement feasible and reasonable criteria.