The Otay River Floodplain Site in September 2025. (Photo: Dr. Laurie Koteen, CMSF) Historic losses of wetlands in San Diego Bay. California-wide, coastal wetlands have been lost on an extraordinary scale.  They have been drained, starved of sediment, filled and constructed upon, bisected by transportation corridors, and served as dumping grounds for municipal waste.  In South San Diego Bay, a small segment of these vital ecosystems is undergoing restoration to reclaim this cr

Just south of Elkhorn Slough, the Castroville Slough Treatment Wetland showcases the potential of multi-benefit land repurposing initiatives