CITY COUNCIL REGULAR AGENDA PACKET

City of Pleasanton | Stormwater System Management Plan | PWD 25.601 | PAGE 18 Task 4.3 – Maintenance, Rehabilitation, and Replacement Plan Wood Rodgers will develop a maintenance, rehabilitation, and replacement plan that summarizes the survey and inspection; describes the storm drain and pump station assessment results; and recommends activities and work to restore drainage facility condition and maximize their useful life for up to 46 projects. Based on Wood Rodgers’ inspection and condition assessment experience, there is generally a 20% to 30% chance that the inspected facilities are in critical condition and require maintenance, rehabilitation, and replacement recommendations. That probability translates to 46 projects out of the 180 sites proposed to be inspected in Task 4.2. Wood Rodgers will recommend maintenance activities, rehabilitation work, and replacement projects to address deficiencies in critical condition based on field assessments, the remaining useful life of facilities, and cost effectiveness. When a facility is near the end of its useful life or the rehabilitation cost is greater than the replacement cost, replacement work is recommended over rehabilitation work. When the improvements recommended to address deficiencies require substantial resources and planning for implementation, the improvements are categorized in the Capital Improvement Plan described in Task 5. The need and extent of rehabilitation and replacement work will be estimated from the inspection reports and site photos for the inspected facilities with “critical” and “poor” structural condition ratings. The inspected facilities with a “poor” rating are recommended for continued monitoring in case they become “critical.” Inspected facilities with a “critical” rating are recommended for improvement, either through a capital improvement or more minor rehabilitation/replacement. Deliverable(s): Maintenance, Rehabilitation, and Replacement Plan for 46 projects EXHIBIT A Page 175 of 376