Port of San Diego Expands Marine Life Concrete Project
The city will install 30 new concrete structures to boost marine biodiversity after a successful two-year pilot study.
Updated on Oct. 25, 2026 in Environmental
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The Port of San Diego is set to expand an initiative that replaces traditional shoreline armoring with specialized concrete structures designed to support marine life. This move follows a two-year pilot program that demonstrated significant ecological growth within San Diego Bay.
Why it matters
By providing textured surfaces for organisms to colonize, these structures help restore natural biodiversity that is often lost when traditional seawalls or armoring are installed. The project aims to prove that infrastructure can actively contribute to the health of the local aquatic environment.
The pilot study confirmed that biomass doubled in the test area relative to control sites. Researchers are now preparing to install 30 additional units to further evaluate the impact on marine ecosystem recovery.
The players
Port of San Diego
This government entity manages the harbor and its surrounding tidelands while prioritizing environmental sustainability initiatives.
Ocean Ecostructures
This company specializes in developing ecological infrastructure solutions that are designed to enhance biodiversity in marine environments.
The details
The project involves replacing standard, smooth shoreline materials with engineered concrete units that feature growth surfaces for native species. These structures create complex habitats that mimic natural rocky reefs, allowing marine life to flourish in areas previously dominated by industrial armoring.
Timeline
The initial pilot project concluded after a two-year duration spanning 2024 through 2026.
Future installation of 30 new units will be subject to a permitting process.
New project sites will undergo a two-year monitoring period following installation.
The Big Picture
This initiative follows the successful Port of San Diego's 2024-2026 marine life pilot project. The expansion marks a shift toward integrating ecological engineering into standard port maintenance and infrastructure development.
Residents and visitors to the bay may see enhanced marine life near shorelines as these structures are integrated into the local infrastructure. The project demonstrates a scalable approach for coastal cities to improve water ecosystem health through specialized construction materials.
The takeaway
Artificial structures that prioritize ecological complexity can effectively boost local biodiversity in urbanized harbor environments. Implementing these designs provides a blueprint for balancing essential coastal infrastructure with the preservation of natural marine habitats.
Further reading
Learn more about local efforts to protect aquatic habitats in the San Diego Environmental section.
Source note: This article includes information reported by ABC 10 News San Diego KGTV.
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