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Orange County Coastal Regional Sediment Management Plan
collaboration among multiple parties, emphasis on leveraging partners’ resources, sharing of
information, and development of a common database.
Coastal RSM Plans
The Plan outlined in the current document is one of many coastal RSM plans that have been or
are being developed as part of the California CSMP. These coastal RSM plans are being
developed by formulating and seeding regional consensus-driven sediment management policy
and guidance to restore and maintain coastal beaches and other critical areas of sediment
deficit; reduce the proliferation of protective shoreline structures; sustain recreation and tourism;
enhance public safety and access; and restore coastal sandy habitats.
Coastal RSM plans have been developed for Southern Monterey Bay, Santa Barbara/Ventura
Counties, and San Diego County (PWA 2008, BEACON, 2009, Moffatt & Nichol, 2009a). These
areas are marked by red boxes in Figure 1.3. Other coastal RSM plans are in progress as
shown in the green stars in Figure 1.3. Some lessons learned from completed coastal RSM
plans and their attempted implementation include:
• Have stakeholders identify sediment issues of concern at early stages and provide
thoughts on possible solutions;
• Focus on the majority of issues that stakeholders agree on rather than the less common
issues of contention;
• It is important to emphasize soft solutions;
• Implement opportunistic beach fill programs to contribute as much as possible to the
region each year, and maximize what is allowable under each program;
• Continue maintenance dredging operations, such as at lagoons, and consider
proportional placement to maximize benefits over space and time;
• Continue ongoing large projects periodically to offset remaining sediment losses, and
help meet the balance of what is needed regionally;
• Consider sediment management devices when appropriate, such as artificial submerged
reefs, which could reduce the volume needed for replenishment;
• Involve all local jurisdictions at the beginning of the process;
• Having an easily readable coastal RSM plan is important to getting buy-in from public
and local managers and politicians;
• Effective coastal RSM plan implementation requires memorandums of understanding
(MOUs) or other agreements covering the entire littoral cell, regional permits, funding,
and project assistance;
• Incorporate the coastal RSM plan into Local Coastal Plans and General Plans;
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