Oceanside presents ReBeach pilot; Carlsbad invited to join adaptive‑management process

Jamie Timberlake, Oceanside's coastal program manager, briefed the commission on the ReBeach pilot project, an adaptive pilot that combines an artificial 'butterfly' reef, nearshore and onshore sand nourishment, and headlands intended to retain sand within a littoral cell. Timberlake said extensive modeling and baseline monitoring inform the design, and that an adaptive‑management plan will set performance thresholds and stepwise responses if monitoring detects adverse changes.

Nick Sadripoor, senior coastal scientist with GHD, described the baseline monitoring program—shoreline transects, bathymetry and substrate mapping—and noted the monitoring stretch runs from South Jetty Beach to Tamarack. He said recent physical modeling and paired observational datasets will inform trigger thresholds and that unexpected natural variability (for example, Tamarack's recent erosion) must be distinguished from project impacts.

Public speakers and coastal advocates (Save Oceanside Sand representatives) urged regional collaboration and highlighted the potential for shared learning. Charlie Bowen said ReBeach is being pursued as a science‑based pilot and that lessons learned could benefit other coastal communities. Bob Ashton of Save Oceanside Sand asked the commission to consider rescinding Carlsbad’s existing resolution opposing retention structures so the cities can coordinate a joint approach.

Commissioners asked whether corrective actions and recourse would be memorialized with Oceanside: Timberlake and Sadripoor described the tiered approach (monitor → investigative study → tier‑3 collaborative response) and said thresholds, investigation protocols and potential interventions (adjusting nourishment, increased monitoring, or partial removal) will be developed as part of the adaptive‑management plan; a CEQA draft was expected in late August or September. The commission did not take a formal position but welcomed continued regional participation and requested the item be considered for a future agenda.