The 2012 San Diego Regional Beach Sand Project

摘要

The San Diego Association of Governments (SANDAG) is embarking on a second Regional Beach Sand Project (RBSP II) since adoption of their Shoreline Preservation Strategy (SANDAG 1993). The Shoreline Preservation Strategy (SPS) called for beach nourishment to offset regional sand losses and beach narrowing. The first RBSP (RBSP I) was a success, in that it widened beaches for up to seven years in some areas as reported by monitoring (Coastal Frontiers Corporation 2010), while not adversely impacting the environment (AMEC 2005). This second RBSP (II) is intended to replicate and potentially improve on the benefits of RBSP I, while still not causing environmental impacts. Several alternatives were analyzed for shoreline position, change to recreational beach area, and impacts to lagoons. Two alternatives appear to perform successfully, and the region selected one for implementation. This paper presents results of analyses for the proposed alternative.