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Home My WebLink About2026-02-05; Environmental Sustainability Commission; 02; Oceanside’s Beach Sand Nourishment and Retention Project UpdateMeeting Date: Feb. 5, 2026 To: Environmental Sustainability Commission From: James Wood, Environmental Sustainability Director Staff Contact: James Wood, Environmental Sustainability Director james.wood@carlsbadca.gov, 442-339-2584 Subject: Oceanside’s Beach Sand Nourishment and Retention Project Update Districts: All Recommended Action Receive an informational report from Jayme Timberlake, Oceanside’s Coastal Zone Administrator, on Oceanside’s Beach Sand Nourishment and Retention Project. Discussion The City of Oceanside seeks to develop a program that will determine an offshore source of high-quality sand for nourishment projects along Oceanside’s beaches, while simultaneously designing and permitting a sand retention mechanism or structure that will help retain placed sand. Previous updates were provided to the former Beach Preservation Commission. Next Steps Staff will continue to communicate with Oceanside staff regarding significant developments on this project and will convey those developments to the Commission as needed. Fiscal Analysis This action has no fiscal impact. Environmental Evaluation The proposed action is not a “project” as defined by CEQA Section 21065 and CEQA Guidelines Section 15378(b)(5) and does not require environment review under CEQA Guidelines Section 15060(c)(3) and 15061(b)(3), because the proposed action to receive this report is an organizational or administrative government activity that does not involve any commitment to any specific project which may result in a potentially significant physical impact on the environment. Any subsequent action or direction stemming from the proposed action may require preparation of an environmental document in accordance with CEQA or CEQA Guidelines. Exhibits 1.None. ENVIRONMENTAL SUSTAINABILITY COMMISSION Feb. 5, 2026 Item #2 Page 1 of 1 RE:BEACH Oceanside City of Carlsbad Environmental Sustainability Commission February 5, 2026 Oceanside, CA •Founded in 1888 •Population ~175,000 → 3rd largest city in San Diego County •42 sq. miles | 3.75 miles of beaches •Iconic coastal landmarks: 1,942-ft wooden pier & harbor village A classic Southern California beach town, located between San Diego and Los Angeles •World-class surf — official USA Surfing training site •5 million unique beach visitors annually •Major regional transit hub •Home to Caity Simmers, first CA surfing world champ (WCT) in 34 years 2 Oceanside Beach Conditions Credit and Thanks to Save Oceanside Sand (SOS) 3 RE:BEACH Background Beach Sand Feasibility Study (2020 – 2021) Preliminary Engineering Evaluation Recommendations: •Beach nourishment program •Sand retention Sand Nourishment and Retention Pilot Project RE:BEACH (2023-2027) •Community and Stakeholder Engagement •Design Competition (2023) •Siting Study (2024) •Offshore Investigation (2024) •Baseline Monitoring (2025 – 2027) •Engineering, Analysis and Design (2024-2026) •Environmental Compliance and Permitting (2025-2027) •Fundraising (2024-2027) •Construction – Anticipated as early as 2027/2028 4 RE:BEACH Regional Outreach and Collaboration 5 Pilot Project Elements •Bidirectional artificial reef •Two headlands •Onshore and nearshore nourishment •Local borrow siteLocal Borrow Site RE:BEACH Pilot Project Goals •Restore sandy beaches in Oceanside with an innovative, multi-benefit project •Increase efficiency and extend the benefits of sand management efforts 6 Literature, data review and empirical formulas Big bucket reef concepts, general placement, wave climate Hydrodynamic Modeling Design screening, preliminary system performance Morphological modeling Refine reefs and nourishment, long- term system performance Physical modeling Refine reefs further, assess safety % D e s i g n 0 10 30 65 10 0 Nu m b e r o f r e e f c o n c e p t s 40 3-5 2-3 10 -20 Modeling & Engineering Design Approach 7 Artificial Reef Modeling •Explored variety of shapes based on global case studies and literature •>40 reef designs have been modeled in Oceanside •2 water levels, 5 wave conditions, 800+ simulations •Measuring alongshore influence and wave energy transmission 8 Artificial Reef – Parent Reef Design •Dozens of reef designs and hundreds of simulations resulted in ‘parent reef’ moving forward to morphological and physical modeling •Additional modifications of parent reef will be explored in upcoming modeling to be finalized in early 2026 9 Headlands and Strand Integration10 Artificial Headland Multiple Benefits Improved beach amenities and accessibility: •Marine safety tower •At grade access, Mobi-mat •Bike racks •Surf racks •Stepped seating and coastal viewing space •Signage and local art 11 Technique Frequency Range Coverage Start End Currents ADCP Hourly Water Column Tyson & Wisconsin 2025 2027 Shoreline Profiles SOS - Community Science RTK Monthly Subaerial ~Harbor - Oak 2020 2027 SANDAG Transects RTK/Laser Level Biannually Subaerial to DOC Harbor - Tamarack 1997 2027 Ortho Drone Quarterly Subaerial Pier - Tamarack 2025 2027 Bathymetry Sidescan Quarterly Subtidal Harbor - Tamarack 2025 2027 Biological Sidescan with grab samples and divers Biannually Subtidal Harbor - Tamarack 2025 2027 Surf Surfline Camera Hourly Wave Breaking Field Harbor - Tamarack 2023 2027 Carlsbad Submarine Canyon Oceanside Harbor Tyson Wisconsin Oceanside Pier Buena Vista Lagoon Agua Hedionda Lagoon Baseline Monitoring Tamarack Jetties Warm Water Jetties New Existing Existing New With grant support for baseline monitoring from CarlsbadOceanside 12 Adaptive Management Program Baseline Monitoring and Adaptive Project Elements •Baseline monitoring program is extensive –Tracks currents, beach width, habitat, surf, beach and ocean use •Pilot project, first-of-its-kind –Comparison of project before and after (well after) –Supports regional sand management strategies and corroboration •Adaptive triggers guide adjustments –Change in beach width = add sand though sand nourishment program or SCOUP 13 Elements of Project In Progress •Fundraising •Physical and Morphological Modeling •Adaptive Management Plan •CEQA and NEPA •Continued Outreach and Engagement •Baseline Monitoring •Permitting Physical modeling schematic 14 •SANDAG Shoreline Preservation Working Group regionally recognized RE:BEACH pilot project. •Fulfills Key goal Regional Sand Retention Strategy •Collaboration with SANDAG and the City of Oceanside •Environmental compliance •Policy document updates •Fundraising for pilot project construction Pilot Project for the Region 15 Thank you! Jayme Timberlake Coastal Zone Administrator jtimberlake@oceansideca.org With grant support for baseline monitoring from: 16