RES 87314 - Laserfiche WebLink

EXHIBIT "A" SCOPE OF WORK (revised 7-14-87) We propose to perform the following scope of work: 1. We will supplement the topographic features shown on the existing improvement plans for this portion of Hopyard Road with a field survey of the property line profile along the intended alignment of the new wall. This topographic survey will include features near the fence within public right-of-way (ROW), and location of street ROW (based on data contained in tract maps 2905, 3023, 3048, and 3158). This work includes: a. Field topographic data collection b. Establish horizontal & vertical control c. Field location of utilities affected d. Plotting of profile, utilities and ROW Detailed topographic features of the private back yard areas are not included in this task. We will, however, identify and sketch backyard improvements in up to eight yard areas that may be affected by the soundwall project. 2. Gather utility data from PG&E, Pacific Bell, EBMUD, Dublin/Pleasanton Services District, and Viacom regarding existing utility locations, if any, in the project area. 3. We will perform a 24-hour noise measurement in the backyard of a typical home in the study area and spot measurements at one or two other homes as necessary to evaluate the current noise exposure in the study area. The 24-hour data will describe the distribution of sound levels throughout the day and allow us to calculate the existing 24-hour average noise level, Ldn. We will then account for future increases in noise level due to increased traffic, any change in travel speed in the corridor, and the change in distance from the rear yards to Hopyard Road after it is widened. Based on the projected future noise level, we will then determine the height, length, and location of a soundwall to meet the City of Pleasanton's standards. Because, we have found in our experience, there is considerable neighborhood interest in how a soundwall will look and how it will perform, results of the noise study will be presented at the first meeting with the homeowners. We will be available to describe our findings and answer any questions that they may have. This work may include preparation of a typical section indicating the relationship of noise source and wall attenuation to the affected backyard areas. REIMER ASSOCIATES ]