Arroyo Mocho Flood Risk Reduction

Zone 7 Water Agency wanted to evaluate the public benefits of reducing flooding along Stanley Boulevard, a corridor carrying approximately 30,000 vehicles a day between Pleasanton and Livermore. Working with Environmental Science Associates, Radbridge evaluated flood reduction alternatives over a 50-year period. We estimated the benefits of avoiding infrastructure damage and travel delays, reducing collision risks, and limiting emissions from detours.

Three alternatives had estimated benefits exceeding their costs. We also examined potential property tax revenue associated with future commercial development that flood protection could allow. The analysis helped Zone 7 and its project partners compare alternatives and explain how the proposed investments could reduce disruption and protect infrastructure. It provided economic evidence for project review and public discussion.