2024-02-02; Oceanside's Beach Sand Nourishment and Retention Project Update (District 1); Barberio, Gary

To the memb~rs of the:

CITY COUNCIL
Date 'l l2..\ 2l.{ CAL CC -.L_ /
CM ✓ACM _0)CM (3) ...L
February 2, 2024
Council Memorandum
To: Honorable Mayor Blackburn and Members of the City Council From: Gary Barberio, Deputy City Manager, Community Services Kyle Lancaster, Parks & Recreation Director
Via: Geoff Patnoe, Assistant City Manager
{city of
Carlsbad
Memo ID# 2024008
Re: Oceanside's Beach Sand Nourishment and Retention Project Update (District 1) This memorandum provides an update to a previous City Council Memorandum, dated September 7, 2023, on the City of Oceanside's Beach Sand Nourishment and Retention Project.

Background
July 26, 2023 - Oceanside staff sent Carlsbad staff a brief " ... summary of the current happenings with the Phase 2 Sand Nourishment and Retention Pilot Project" and advised that "Our design competition, which supports the Phase 2 Project, is now called RE:BEACH Oceanside, and it is underway, but only recently launched ... "
August 23, 2023 - Oceanside staff sent Carlsbad staff an invitation to attend the first public workshop for the RE:BEACH design competition on August 29, 2023, and indicated there would be a total of three public workshops held prior to a City Council decision in January 2024.

August 29, 2023 - Oceanside staff held the first public workshop for the RE:BEACH design competition. Carlsbad staff attended the workshop. Three design teams were invited to present at the workshop: Dutch based firm Delatarus, New York and San Francisco based firm SCAPE and Australia based firm ICM. Each team gave a presentation that included an overview of Oceanside's beach conditions, challenges retaining sand south of the pier, past replenishment efforts and results, proposed design strategies, design concepts, results achieved elsewhere using similar strategies, and results anticipated in Oceanside. All firms presented varying strategies that could be implemented at multiple Oceanside beach locations as pilot projects to be monitored for results, which could lead to a more comprehensive approach.

August 31, 2023 - The Carlsbad City Council received an email from the Carlsbad City Manager that included a link to a video of the workshop, and a link to Oceanside's RE:BEACH webpage. He also indicated the concepts shared by each team represented high level proposals that will continue to be refined in the months ahead based on feedback from the public and in collaboration with the jury.

Community Services Branch
Parks & Recreation Department
799 Pine Avenue I Carlsbad, CA 92008 I 442-339-2826 t
Council Memo - Oceanside's Beach Sand Nourishment and Retention Project Update (District 1) February 2, 2024

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September 6, 2023 - Carlsbad staff held a meeting with Oceanside staff to further discuss the presentations at the public workshop and confirm remaining actions in the evaluation process.

Discussion
October 3, 2023 -The Carlsbad Beach Preservation Commission received a presentation from Oceanside staff on Phase II of the City of Oceanside's Sand Nourishment and Retention Pilot Project, including its RE:BEACH Oceanside Coastal Resilience Design Competition (Attachment A).

October 17, 2023 - Oceanside staff held the second public workshop for the RE:BEACH design competition. Carlsbad staff attended the workshop. The same three design teams were invited to host open house style booths to describe the refinements to their design concepts and respond to questions from participants.

November 2, 2023 - Carlsbad staff held a meeting with Oceanside staff to further discuss the presentations at the public workshop and confirm remaining actions in the evaluation process.

December 13, 2023 - Oceanside staff held the third public workshop for the RE:BEACH design competition. Carlsbad staff attended the workshop. The same three design teams were invited to make presentations on their final design concepts, explain why their firm should be selected for the pilot project, and respond to questions from participants.

December 14, 2023 - Carlsbad staff called Oceanside staff to further discuss the presentations at the public workshop and confirm remaining actions in the evaluation process.

January 4, 2024 - The City of Oceanside posted a news release on its website, titled RE:BEACH Jury Recommends Winning Design Team. The news release read in part:

The Jury/Advisory Panel had an opportunity to meet one-on-one with each Design Team to further discuss the technical, societal, environmental, and financial components of each proposal.

Following these discussions, the RE:BEACH Jury expressed their unanimous support of a preferred alternative, International Coastal Management's "Living Speed Bumps" concept. The "Living Speed Bumps" concept includes the construction of two small headlands that will aim to stabilize sand on the back beach, with an offshore artificial reef aimed at slowing down nearshore erosive forces. ICM, based in Australia's Gold Coast, has decades of experience implementing "speed bumps" on their own coastline, bringing forward a new concept for Oceanside's coast, but with a proven track record of success on the East Coast of Australia.

The Jury's selection of this option was based on the proposal's ability to meet the RE:BEACH project goals and design criteria. According to the Jury, ICM's concept clearly demonstrates potential positive impact in retaining sand, while leveraging existing infrastructure to further extend the effectiveness of sand placement.

Based on the Jury/ Advisory Panel deliberations and public feedback, two key modifications to the design will be promoted: {1} refinement of the top of the headland space to use more Council Memo - Oceanside's Beach Sand Nourishment and Retent ion Project Update (District 1) February 2, 2024

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environmentally or aesthetically pleasing elements that blend with Oceanside's character, and (2) utilization of rock instead of geotextile bags for construction of the artificial nearshore reef.

While the Jury/ Advisory Panel deliberations offered important feedback and a clear recommended winning concept, the Oceanside City Council will ultimately provide the final approval and guidance on a recommended design.

Through the RE:BEACH process, teams collected hundreds of comments, in person and online, from the numerous residents and community groups who showed up by the hundreds to the Public Workshop series. Working with local community organizations like Save Oceanside Sand, Surf rider Foundation, the Oceanside Chamber of Commerce, and others, the Design Teams each engaged in robust community conversations on the long-standing issue of beach erosion in Oceanside.

January 23, 2024 - Oceanside staff held a hybrid (in-person/virtual) meeting with representatives of San Diego County coastal cities on the RE:BEACH Oceanside design competition. Carlsbad staff attended the meeting, along with Oceanside Mayor Esther Sanchez, Solana Beach Mayor Leesa Heebner, Encinitas Mayor Tony Kranz, Encinitas Council Member Joy Lyndes and Del Mar Council Member Dwight Worden. The presentation included an overview and timeline of the competition, the design concepts considered, the criterion weighed, and the design concept preferred by the jury/advisory panel (Attachment B). Oceanside's staff and Mayor expressed the intent of its Sand Nourishment and Retention Pilot Project provid ing benefit to not the City of Oceanside, but also to other coastal cities within the region. Oceanside's staff and Mayor invited questions from attendees and offered responses.

January 31, 2024- Oceanside's City Council held a RE:BEACH Winning Design Workshop. A detailed City Council Staff Report was posted to the City of Oceanside's website in advance of the workshop. Oceanside's City Council approved staff's recommendation, which read:

Staff recommends that the City Council take the following actions for the RE:BEACH Oceanside Coastal Resilience Competition:

1. Receive the conceptual alternatives and concur with the following staff recommended options:
a. Approve the staff and jury recommended selection of International Coastal Management as the winning design team, with its Living Speed Bumps concept b. Approve the staff and jury recommended modifications to the selected design concept

2. Authorize staff to proceed with final design, engineering and environmental compliance tasks of the Phase 2 Sand Nourishment and Retention Pilot Project Council Memo - Oceanside's Beach Sand Nourishment and Retention Project Update (District 1) February 2, 2024

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Sand replenishment projects that could benefit beaches within Carlsbad The city has received a number of public inquiries about sand replenishment in Carlsbad, particularly in the southern Ponto-area reaches of the coastline. When the city receives inquiries about sand replenishment and projects that could benefit Carlsbad, staff will respond to residents as follows:

The majority of the beaches within Carlsbad are owned and controlled by the State of California.

The City of Carlsbad controls only the northern most mile of beach (from Oak Avenue to the Oceanside Border via a lateral public access easement). The city does, however, support several sand replenishment projects that benefit beaches within Carlsbad, including the Oceanside Harbor Maintenance Dredging Project, the Agua Hedionda Lagoon Maintenance Dredging Project, the Batiquitos Lagoon Maintenance Dredging Project, and the SANDAG Regional Beach Sand Project Ill. Each of these projects involve other entities, with whom Carlsbad staff have developed points of contact. For more information on these projects and their respective cycles, contact Parks Planning Manager Nick Stupin at [email protected], or 442-339-2527.

For additional reference, Carlsbad staff have also compiled an ownership map of the beaches/shorelines within Carlsbad (Attachment D), and an updated synopsis of each of the above noted sand replenishment projects (Attachment E), and their next anticipated cycles.

Next Steps
Staff will continue to stay in communication with Oceanside staff regarding significant developments on Phase II of Oceanside's Beach Sand Replenishment and Retention Project, as well as the other entities' points of contact regarding significant developments on their respective projects .

Attachment: A. Carlsbad Beach Preservation Commission Staff Report, dated October 3, 2023 (Due to the size of Attachment A, a hardcopy is on file in the Office of the City Council, as reference)
B. Oceanside Meeting of San Diego Co. coastal cities slides, dated January 23, 2024 C. Oceanside City Council Workshop Staff Report, dated January 31, 2024 (Due to the size of Attachment C, a hardcopy is on file in the Office of the City Council, as reference)
D. Map of the ownership of the beaches/shorelines within Carlsbad E. Synopsis of sand replenishment projects that benefit beaches within Carlsbad cc: Scott Chadwick, City Manager
Cindie McMahon, City Attorney
Paz Gomez, Deputy City Manager, Public Works
James Wood, Environmental Sustainability Director
Jeff Murphy, Community Services Director
Kristina Ray, Communications & Engagement Director
Council Memo - Oceanside's Beach Sand Nourishment and Retention Project Update (District 1) February 2, 2024

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Allegra Frost, Deputy City Attorney
Todd Reese, Parks Services Manager
Nick Stupin, Parks Planning Manager
Beach Preservation Commissioners
Meeting Date: Oct. 3, 2023
To: Beach Preservation Commission
From: Kyle Lancaster, Parks & Recreation Director
Staff Contact: Michael Tully, Parks Planner
[email protected], 442-339-5724
Subject: City of Oceanside Phase 2 Sand Nourishment and Retention Pilot Project Recommended Action
Receive an informational report from a representative of the City of Oceanside on phase two of its Sand Nourishment and Retention Pilot Project, including the RE:BEACH Oceanside Coastal Resilience Design Competition (Exhibit 1).

Discussion
Through phase two of its Sand Nourishment and Retention Pilot Project, 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. The design of the retention structure is being developed through a global design competition led by GHD Inc. and its subconsultant Resilient Cities Catalyst.

In the spring of 2023, the City of Oceanside launched the RE:BEACH design competition. The RE:BEACH project team is composed of City of Oceanside’s Coastal Zone Administrator Jayme Timberlake, GHD Senior Coastal Scientists Brian Leslie and Nick Sadrpour, Resilient Cities Catalyst Co-Founder, Sam Carter and Associate Director, Alex Klein. An advisory panel/jury was assembled by the project team to assist the City of Oceanside in selecting a design firm finalist.

The following three design firms were advanced as finalists for the RE:BEACH competition:
• SCAPE Landscape Architecture with ESA and the Dredge Research Collaborative • Deltares with Deltares USA, and MVRDV
• International Coastal Management
The project team expects the three design teams to explore a variety of design options, including but not limited to dunes, cobble berms, artificial headlands and reefs, as examples of nature-based or nature-inspired coastal features that can work together to create a resilient and sustainable sandy shoreline. All designs will be guided by the design criteria, which sustains Oct. 3, 2023
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a focused mission to construct an innovative, multi benefit sand retention project on the City of Oceanside’s beaches that serves both local and regional benefits.

The design criteria guidelines were provided for the physical, environmental, financial, social and regional components of the project and are included in the Oceanside Design Competition Solicitation Package (Exhibit 1, Attachment A).

Public Workshops:
• The first public workshop was held at the Oceanside Council Chamber on Tuesday, Aug. 29, 2023. The workshop was an initial open house style, followed by formal presentations from the three design teams. Carlsbad staff attended the workshop. • The second public workshop is scheduled to be held on Oct. 17, 2023 • The third public workshop is scheduled to be held on Dec. 13, 2023 The winning design will be presented to the Oceanside City Council for approval in January 2024. Upon a passing vote, the winning design will move into final engineering and environmental compliance review.

Next Steps
Staff will stay in communication with the City of Oceanside staff regarding significant developments on phase two of the Oceanside Beach Sand Replenishment and Retention Project and convey them as needed.

Exhibits

1. Phase 2 Sand Nourishment and Retention Pilot Project, Oceanside Coastal Zone Management.

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Phase 2 Sand Nourishment and Retention Pilot Project
Oceanside Coastal Zone Management
Carlsbad, Beach Preservation Commission meeting – Tuesday, October 3rd, 2023 On January 25, 2023, the Oceanside City Council reviewed and approved a Professional Services Agreement with GHD Inc for Phase 2 of the Sand Nourishment and Retention Pilot Project. Through this Project, Oceanside seeks to develop a program that will determine an offshore source of high-quality (i.e. larger grain size) 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. The design of the retention structure is being developed through a global design competition that is being led by GHD Inc. and their subconsultant Resilient Cities Catalyst (RCC).

A global call to action was released in February 2023, inviting engineering firms from across the world to apply to participate in RE:BEACH Oceanside, a Coastal Resilience Design Competition. A Jury and Advisory Panel comprised of local, state, and national experts weighed in on reviewing initial proposals from the global teams, with the City and Project Team making the ultimate decision on the finalists, based on experience, proposed approach and track record of delivering innovative solutions. The following three teams were selected to participate in RE:BEACH:
- SCAPE Landscape Architecture with ESA and the Dredge Research Collaborative SCAPE is a New York City based landscape architecture and urban design firm with offices in New Orleans and San Francisco. The team works to create well-designed, ecologically restorative and socially engaged landscapes through diverse forms of design. Scape Studio aims to use this project to bolster the transformative potential of natural spaces. - Deltares with Deltares USA, and MVRDV
Deltares is a nonprofit, solution-driven Dutch firm which boasts a robust knowledge of major societal issues and realizes the urgency behind finding equitable, sustainable solutions. Deltares’ mission revolves around working passionately to find answers to some of life’s biggest environmental questions.
- International Coastal Management
An Australia-based firm that aims to meet the objectives of the project, while also acknowledging the unique opportunities and challenges of Oceanside’s coastal environment.

From the Gold Coast in Australia to Europe and the Caribbean, the team of coastal engineers has experience with various technical coastal designs, having completed projects for SeaWorld, the Gold Coast Waterways Authority, the Nature Conservancy, etc.

Through this process, the Project Team expects the three Design Teams to explore a variety of design options, including but not limited to dunes, cobble berms, artificial headlands and reefs as examples of nature-based or nature-inspired coastal features that can work together to create a resilient and sustainable sandy shoreline. All designs will be guided by the Design Criteria, which sustains a focused mission to construct an innovative, multi benefit sand retention project on the City of Oceanside’s beaches that serves both local and regional benefits. Design Criteria were scrutinized by the Project Team, City Team, Jury and Advisory Panel prior to initiating connections with the global design firms.

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The Design Criteria guidelines were provided for the physical, environmental, financial, social and regional components of the Project and are included in the Oceanside Design Competition Solicitation Package (Attachment 1).

The design teams participating in RE:BEACH Oceanside will benefit from the robust information available through Phase 1 Feasibility Study, which included a historic background and data inventory, development and evaluation of alternatives, multi-criteria analysis, and a project monitoring framework.

RE:BEACH Oceanside will take place over 6-months, and will culminate with a recommended winning design, as designated by the Jury/Advisory Panel and Project Team. The winning design will be presented to the Oceanside City Council for approval in January 2024. Upon a passing vote, the winning design will move directly into final engineering and environmental compliance with the GHD Inc team.

What sets this process apart from other, more traditional design competition processes, is its direct link to the engineering design and permitting phases for construction. The ultimate outcome of this process will be a shovel ready sand retention pilot project, supported by offshore investigations and sampling of available sand.

To learn more and participate in RE:BEACH, please visit rebeach.org and subscribe to the mailing list to stay engaged with the competition, learn about upcoming events, and provide input and feedback on the design concepts. Our first public workshop was held on August 29th, with over 200 people from the community and region participating in person, by sharing their thoughts and comments on the preliminary design concepts presented by the design teams. Our next public workshop is the second one of three workshops, taking place on October 17th from 4-7p at Oceanside Museum of Art.

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Design Brief & T eam
Solicitation Package
Sand
Nourishment &
Retention
Pilot Project
A Coastal Resilience Design Competition
April 26, 2023
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For the last five decades, the City of Oceanside (City) has been studying and discussing alternatives to effectively maintain a sandy shoreline. The beneficial reuse of dredged Harbor sand is used to annually supplement the beach. This effort, however, has proven to be ineffective at combating coastal erosion due to the characteristics of the dredged material, quantity available, and timing of placement, resulting in only northern portions of the City’s coastline benefiting from persistent sandy beaches. The long term efficacy and sustainability of these efforts are further called into question by projected impacts by climate change, including sea level rise and storm pattern shifts. T oday, there is no dry sand during much of the year in front of much of the City’s shoreline, posing increased risk of flooding and damage to businesses and infrastructure, as well as residential communities, which threatens the City’s economic lifeblood: the City’s visitor and tourism sectors attracted by a sandy beach.

Through a design competition process, Phase T wo of the Sand Nourishment and Retention Pilot Project invites innovation into the design of a pilot sand retention mechanism that will support a resilient shoreline in the City. The design shall be one that can be scaled up to benefit larger portions of the City’s coastal areas and/or other municipalities in the state or region facing similar challenges.

The development of designs will be supported by the Project T eam over three Design Rounds, which will include initial reviews by the Project T eam, Charrettes with the Project T eam and additional experts, Regional Briefings, and Public Workshops (see below for more detail). A final review will be made by a Jury, and their recommendation will be provided to the City Council, who will vote on the winning design.

Through this process, the Project T eam wants to see teams explore and consider a variety of design options, including but not limited to dunes, cobble berms, artificial headlands and reefs as examples of nature-based or nature-inspired coastal features that can work together to create a resilient and sustainable sandy shoreline. All designs should be guided and respond, at a minimum, to the Design Criteria in the attached Design Brief. The Design Brief provides background surrounding the issues in the City, current coastal management activities, past investigations into project alternatives (including Phase One) and provides details on the Design Criteria for the competition.

Three Design T eams will be selected to participate in a 8-month design competition from June 2023 to January 2024. The design competition process is enhanced by numerous public outreach events and opportunities. Stipends of $25,000 USD will be provided to each of the three selected teams. The City is actively fundraising to increase stipends for Design T eams, aiming to raise up to $100,000 USD per team. Once a winning design is selected, GHD will perform a coastal engineering consistency review to ensure that the approach is viable from a technical and environmental standpoint. A final recommended design will be brought to the City Council in January 2024. The selected design will then move into final engineering and environmental compliance phases, which includes seeking required permits for the project. The winning team will be offered a contract of at least $100,000 USD from GHD, Inc. to continue to participate and work with the team through the next phase of the project.

Resilient Cities Catalyst are inviting a limited number of teams to respond to this invitation based on their past project experience and expertise. Due to the multi-faceted aspects of the Design Competition, Design T eams are encouraged to form collaborative teams with potentially multiple firms that encompass experienced professionals that represent expertise in a range of disciplines.

All invited teams are free to partner with each other, and/or identify additional firms outside of this list to complement their qualifications.

Note: GHD will serve as the project manager for the selected pilot project concept and be able to provide extensive local coastal processes knowledge and coastal engineering support to the successful Design T eam. Therefore, Design T eams are encouraged to include some coastal engineering expertise with a majority of the team focusing on innovative, multi-faceted design solutions.

Overview
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AECOM
Arcadis
ARUP
Balmori
BIG-Bjarke Ingels Group
Biohabitats
Deltares
DHI
Gensler
Guy Nordenson & Assoc.

International Coastal Management
Field Operations
Local Office
Michael Maltzan Architecture
Mithun
OLIN
ONE Architecture + Urbanism
(ONE)
Oru
Rana Creek
RIOS
Safdie Rabines Architects
Sasaki
SCAPE Landscape Architecture
Schmidt Design Group
Sherwood Design Engineers
Stoss
Studio for Urban Projects
SWA Group
Te t r aTe c h
TLS Landscape Architecture
Woods Bagot
WXY
Proposal materials for consideration should be emailed to Resilient Cities Catalyst (oceanside@ rcc.city) by 5PM Wednesday, May 17 , 2023:

We understand portfolios and materials can take on multiple formats, we ask that teams include, at a minimum, the following materials bundled as a single PDF document. The Project T eam will evaluate submissions based on the following categories and corresponding weighting (percentages) indicated below:
•
Proje
ct Understanding & Expression of Interest, 15% —(1-2 pgs). • Projec
t Approach, 30%—with direct consideration and alignment with the Design Criteria (3-5 pgs).
• T eam Qu
alifications, 25%—team composition, bios and roles, including key team members from multiple partners, when applicable.
• Portf
olio of Relevant Work, 30%—provide 3-5 examples of relevant work.

Proposal Timeline:
•
Wednesday,
April 26, 2023: Notification of Opportunity
• Tuesd
ay, May 9, 2023 and Wednesday May 10, 2023: Optional Virtual Webinars for Potential Respondents (at 12pm ET /9am PT and 3pm ET /12pm PT each day), invitations with video conference links forthcoming.
• Wednesday,
May 17 , 2023: Responses Due by 5PM
• Wednesday,
May 31, 2023: Finalist T eams Notified
The Project T eam anticipates fielding questions from potential participants between April 26 and May 17 . Participants should anticipate that the Project T eam may reach out for interviews and/or questions during May 17 to May 31, while proposals are in review.

Invited
T eams &
Details
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Design
Brief
Oceanside Sand Retention Design Competition
The City of Oceanside (City) invites Design T eams to develop a sand retention pilot- project that builds coastal resilience along one of the most beloved and eroded coasts in California. On January 25, 2023, the City decided to move forward with a design competition process to generate innovative, multi-benefit solutions that solve a decades long problem of shoreline erosion. Each Design T eam will work closely with a ‘City T eam’ composed of representatives from key City planning and engineering divisions, as well as the ‘Project T eam,’ led by GHD with Resilient Cities Catalyst, that will provide technical and resilience expertise and feedback through the process. A formal ‘ Jury’—composed of voting and non-voting members from the local, state, and federal agencies—and the local and regional community leaders and experts will also be part of the Design Competition process.

T ogether, these groups provide expertise, guidance, and stewardship meant to validate, inform, and elevate the designs generated.

In responding to this Design Brief, teams are encouraged to partner with practitioners and firms, as needed, to approach the challenge of designing a sand retention pilot project in Oceanside that addresses coastal erosion. The most successful designs will also consider multiple benefits including habitat improvements, recreational and public use amenities, and coastal flood mitigation. When teaming, please consider that a great deal of coastal engineering has been done in Oceanside by multiple parties, and as part of Phase One of this Project. The Phase One feasibility study is included as supplemental material to this Design Brief), and the author of that study and project manager for Phase T wo (this Project), GHD Inc., is available as a technical resource to all three finalist teams; to aid in the development of innovative solutions.

The Design Competition will take place over 8-months, planned for June 2023 – January 2024, culminating in the selection of a winning design by the Project T eam and recommended by the Jury. The winning design will be presented to Oceanside’s City Council for approval. Upon a passing vote, the winning design will move directly into final engineering and environmental compliance phases, with the GHD team. What sets this process apart from other, more traditional design competition processes, is its direct link to the engineering design and permitting phases for construction. The ultimate outcome of this process will be a shovel ready sand retention pilot project.

We are inviting a select list of design firms to respond by submitting a proposal which includes team Qualifications and Conceptual Approach (see below). The City T eam, with input from the Project T eam and Jury, will select 3-finalist teams to go through the Design Competition. Each finalist team will be provided with a stipend of $25,000 USD for their work and engagement in the process. The City is actively fundraising to increase stipends for Design T eams to $100,000 USD. Once selected, the teams will move through three rounds of design and feedback, including technical and resilience reviews, public workshops, design charrettes, and regional stakeholder briefings. The final designs submitted by selected teams will be evaluated based on their technical feasibility, financial viability, and environmental and social impacts (see criteria below). The winning team will be offered a contract (minimum $100,000) with GHD to participate with and support the final engineering analysis, design, and permitting of the pilot project.

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Table of Contents

1. Project Background

2. Proble
m Statement

3. Design Cri
teria

4. Compe
tition
Structure

5. Antici
pated
Deliverables

6. Design Ti
meline
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Project Background
The City of Oceanside (City) has a long and storied history of coastal erosion. Eighty years ago, the U.S. Army Corps of Engineers (USACE), constructed a Harbor complex that has directly and negatively impacted beaches in the City. The effect was described as an “erosional wave” whose effects were said to move down the Oceanside Littoral Cell, which spans from the Oceanside Harbor to La Jolla submarine canyon to the south.

Over the past 80 years (from the construction of the Harbor to present day), over 21M cubic yards (cy) of sand has been placed on City beaches to offset erosional impacts. Beach nourishment sand came from both the USACE’s annual harbor dredging program (13.5M cy) and one-off, local, or regional nourishment events (7 .5M cy). This also includes a limited volume of sand from the USACE’s Experimental Sand Bypass System that was constructed in the 1980s in efforts to restore the natural transport pathway that was broken when the harbor was constructed. This project was unsuccessful due to a myriad of reasons and was decommissioned within a 5-year period.

The most recent, larger scale projects to take place in the City were two Regional Beach Sand Projects (RBSP) carried out in 2001 and 2012. These projects added over 300k cy each of a coarse gradation sand to the City’s sediment starved coastline. Though some short-term benefits were realized, the sand quickly migrated down coast after placement, as there are no rocky reefs or headlands that may encourage natural sand retention within the straight Oceanside coastline. Similarly, in the 2.5 miles south of the pier, there are no artificial mechanisms in place to retain sand. All these previous efforts have fallen short of providing the City with a sustained, dry sand beach for recreational enjoyment, ecological function, and coastal storm damage protection purposes.

The current condition of many City beaches is dismal for beach recreation, with many areas having little to no dry beach during the majority of the tidal cycle. Furthermore, coastal infrastructure is at risk with wave events impacting the shoreline with greater frequency and severity. This has resulted in the need for frequent maintenance and improvements to coastal infrastructure and shoreline protection systems. Projected sea level rise threatens to make these conditions worse. A third Regional Beach Sand Project is now being considered and pursued regionally by the San Diego Association of Governments (SANDAG) Shoreline Preservation Working Group. Additionally, a dormant USACE mitigation study to investigate solutions to Harbor impacts has recently been reinitiated after receiving federal funding and support to move forward. The City is simultaneously updating its General Plan, including the Local Coastal Program, to aid in providing solutions to coastal erosion from the Harbor construction. Despite these other ongoing efforts to study and mitigate the City’s shoreline problems and regional coastal erosion concerns, the City decided to pursue an independent study in 2021 to understand what opportunities might exist to restore sandy beaches in the City. This study was led by GHD and was called the Oceanside Beach Sand Replenishment and Retention Device Project (referred to as ‘Phase One’). The study looked at a multitude of local, regional, and international project examples as the basis for developing five (short- list) alternatives to be analyzed to protect beaches from long-term shoreline erosion in an environmentally sensitive and financially feasible way for the city.

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The five alternatives analyzed were:
• No Proj
ect: No Project assumes continuation of the status quo in which Harbor maintenance dredging is the only program adding sand to the city beaches on a regular basis. The city would continue to participate in regional nourishment efforts similar to the RBSP I and II on an ad-hoc basis.
•
Alter
native 1 - Beach Nourishment: Beach Nourishment assumes a more frequent beach nourishment program is carried out by the city to deliver 300,000 cy of sand once every five years, approximately doubling the frequency of prior RBSP efforts. •
Alter
native 2 - Groins: Groins assumes construction of four, 600-foot long, rubble mound groins spaced 1,000 feet apart along the Pilot Reach. The proposed groins are shore-perpendicular and would extend seaward from the existing rock revetment with a crest elevation of 10’ MLLW. A 300,000-cy initial nourishment was included to pre-fill the groin field with subsequent nourishment volumes reduced by about 50%. •
Alter
native 3 – San Luis Rey Groin Extension: San Luis Rey Groin Extension assumes construction of a 350-foot extension of the existing groin to capture sand moving northward toward the harbor. The sand trapped in this filet could possibly be used as a source for downcoast receiver beaches. This alternative includes a beach nourishment component identical to Alternative 2.
•
Alter
native 4 – Multi-purpose Artificial Reef: Multi-purpose Artificial Reefs assumes construction of two 1,000-foot long, rubble mound reefs spaced 1,200 feet apart along the Pilot Reach. Each reef would have emergent and submergent crest sections along their lengths to dissipate wave energy and potentially create a surfable wave on each end of the reef. A 300,000-cy initial nourishment was included to pre-fill the reef salient with subsequent nourishment volumes reduced by about 50%.

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A multi-criteria analysis (MCA) was performed to compare alternatives based on a wide range of criteria that reflects the diversity of opinions and input received from the outreach activities. Each alternative was evaluated against 11 criteria, organized into three categories of T echnical Performance, Financial, and Environmental. The results of the MCA indicated the highest ranked alternative was Groins, followed by Multi-purpose Reefs. These top two alternatives were separated by 8% from one another in total score, which was meaningful when considering the sensitivity of the scoring and weighting system. Beach Nourishment ranked third, about 17% lower than the Groins and 9% lower than Multi-purpose Artificial Reef. The No Project alternative ranked last with very low scores in the T echnical Performance and Environmental categories.

The result of a robust alternative feasibility exercise, numerical modeling, lifecycle economic evaluation, and multi-criteria analysis, suggested a pilot-scale Groin concept be advanced for further analysis, additional public/agency outreach and preliminary design to prepare for the environmental review and permitting process. It was recommended that additional analysis of the Groin alternative involve sensitivity analyses on groin length and spacing, the pre-fill volumes, and sand management systems required to mitigate potential impacts.

Following the completion of Phase One, stakeholders, residents, and several cities to the south of Oceanside expressed concern about the potential for a Groin project to cause erosional impacts along down coast beaches. Additionally, there was a desire from the region, stakeholders, and the public to explore more innovative and/or nature-based solutions to the City’s sand retention problem. The approach of the Phase T wo Design Competition is to leverage technical data and knowledge gained through Phase One, while addressing these local and regional concerns and needs.

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Problem Statement
The history of Oceanside’s severe coastal erosion is rooted in a local context of significant sediment reductions to its coast—Oceanside’s beaches have been disappearing and along some parts of the coast a rock-revetment is all that remains. The City is not unique in this challenge, as urbanized watersheds, dam construction, coastal development/ armoring and harbor developments have created significant disruptions to the flow of sediment to coastlines around the world. These disruptions many times result in the need to actively manage coastal systems to restore broken sediment pathways with frequent beach nourishment and use of structures to slow the loss of sand—such as use of retention systems.

The Design Competition process seeks to inspire solutions to add and retain sand where it is needed most in the City through innovative and creative concepts. The Design Competition process is meant to embrace and address the complexity of erosion in Oceanside, as well as the broader context across the region, with an eye to the broader global challenge of the 21st Century, where sea level rise meets critical infrastructure.

Four Problem Statements have been developed to help establish context around the most pressing City needs and desired outcomes from this Design Competition. Within each problem statement, there is consideration for:
•
Decad
es of historic coastal development that has directly reduced sediment supply thereby increasing the effects of erosion in the City of Oceanside (for example, the Oceanside Harbor, watershed development, creek channelization, back beach stabilization).
•
Exist
ing coastal management strategies within the City and the County have yet to result in sufficient stabilization of the beach for both human recreation and sandy beach ecosystems (for example, Regional Beach Sand Project I & II and annual USACE Maintenance Dredging of the Oceanside Harbor).
•
Withi
n the State of California, traditional sediment retention structures have been criticized for their potential negative impacts to downdrift and regional jurisdictions, resulting in an inability to test, build, permit, and finance novel pilot or demonstration projects as potential solutions.
•
The env
ironmental history of Oceanside and the San Diego region, combined with best available science on sea level rise and future storm impacts, provides high certainty that, without interventions, erosion and loss of beach width is all but inevitable. There is greater and greater need for regional (and statewide) demonstration and pilot project concepts for sediment retention to utilize innovative techniques that provide multiple benefits for coastal communities.

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The four Problem Statements are below. Design T eams are invited to address a set of broad problem statements, that when combined with more specific design criteria, enable innovative pilot design solutions.

Problem Statement One:

How might we design a sand retention pilot project that succeeds in the near (3 years) to short term (20-30 years) at retaining sand while simultaneously providing ecological and flood resilience benefits, limiting negative downdrift impacts and impacts to surfing resources, and is removable if necessary?
Problem Statement T wo:

How might a sand retention pilot project open pathways for Oceanside to explore longer term coastal adaptation?
Problem Statement Three:

How might we successfully build and monitor a pilot sand retention project that informs future regional coastal adaptation approaches?
Problem Statement Four:

How might a pilot sand retention project be scaled to benefit a greater reach of the City shoreline?
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Design Criteria
The design criteria are meant to fulfill two core objectives: (1) provide a boundary of the scope of design for the proposed solution and (2) generate a set of goals that Design T eams, and their solutions can be measured against. T o guide the criteria development, the Project is focused on a mission:

T o cons
truct an innovative, multi-benefit, sand
reten
tion project on the City of Oceanside’s beaches

that se
rves both local and regional benefits.

Any proposed solution should fulfill this mission, requiring all designs to meet the bare minimum objectives:
• Align w
ith the community character and history of place within the City of Oceanside. • Lever
age previous analysis and feasibility studies completed to-date. • Maintai
n a forward-thinking design that incorporates adaptive capacity of solutions to future coastal conditions while addressing chronic erosion issues. • Be techn
ically feasible, financially viable, and environmentally and socially acceptable.

With both the mission and objectives in mind, the design criteria are as follows:

Design Criteria One: Physical
• Desig
ns should be in the coastal zone south of Oceanside Pier, focusing on the City’s most highly eroded beaches.
• Desig
ns should accommodate or be adaptive to up to 2-3 ft of sea level rise (that assumes 20-to-30-year design life), with minimal maintenance. The ability to accommodate or have adaptive capacity to greater amounts of sea level rise would be scored favorably.
•
Ident
ify a clear pathway for scaling of the pilot if it succeeds in its intention. • Refer
ence known design parameters from sand retention alternatives studied through the Phase One report .
• Desig
ns should be structured with the ability to perform sand retention and retain structural integrity under impacts from existing and projected future coastal conditions, including:

1. Extr
eme waves (100 yr. return interval – from northern and southern hemisp
heres), tides and winds (see companion documents, including Phase On
e report).

2. Ext
reme temperatures.

3. Publ
ic use, trampling & vandalism.

4. Perf
ormance goals of a particular design should be articulated.

For exa
mple:
(a) Ret
ain a particular average annual beach width within a
parti
cular reach
(b) Pre
vent overtopping beyond the beach at particular thresholds, such as 100
-year total water level (TWL) and sea level rise scenario

5. For an
y performance goals, teams should define the anticipated time- scale du
ring which the project would be able to perform as designed. • Desig
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include onsite or imported materials, and/ or innovative materials designed for ocean compatibility.

Design Criteria T wo: Financial
• Constru
ction estimates for the designs should be presented for initial construction costs, annual operation and maintenance costs, and removal costs. Creative use or reuse of materials is encouraged to lower costs.
• Desig
ns should articulate the maintenance activities and cost for design to maintain key functions such as retaining sand, providing recreational benefits, and/or minimizing impacts to downdrift sand supply.
•
Creat
ive solutions to finance the project are encouraged that fully value the proposed project’s range of benefits (social, regional, economic, ecological). Especially if construction costs for designs exceed $50M.

Design Criteria Three: Environmental
•
Desig
ns should encourage the rehabilitation of sandy beach habitat. • Desig
ns should minimize impacts to sandy beach ecosystems and nearshore marine ecology.
• Desig
ns should be sensitive to where and which habitats may be converted as part of the design, what enhancements to ecology may occur, and where restoration of historic ecosystems may occur.
• All des
ign references to ecological benefits should be qualified with detailed information on habitat classifications, quality, change over time, and uncertainties clearly explained.

Design Criteria Four: Social
• A succe
ssful sand retention project should increase usable beach space supporting coastal access and multiple opportunities for recreation. • Desig
ns should prioritize preserving or enhancing surfing resources and minimizing impacts to existing surf resources.
• Desig
ns should seek to increase or maintain the existing aesthetic of the beach. • Desig
ns prioritize public safety and low-cost recreational user experiences. • Desig
ns should maximize public benefit.

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Project Assumptions:
• Pilot pr
oject designs will represent reasonable proof-of-concept sand retention strategies that can be piloted, scaled up, and/or repeated if appropriate. • The obje
ctive is to create more time and space for the City to develop a comprehensive adaptation strategy for coastal resources.
• Proje
ct designs will assume that 300,000 cy of beach nourishment sand will be available initially within the project area and then for every five years for ongoing sediment management within the project area. The design teams can utilize this sand within their designs and propose various sand placement types within their concepts. •
Projec
t designs will communicate uncertainty of their design’s success. • As pilots
, project designs should be able to be adapted or removed if the project does not provide its intended multiple benefits over time.
• Proje
ct designs should be implementable, and should reflect an understanding of an ultimate need to be permitted and reviewed based on their adherence to existing laws, including the California Coastal Act. Throughout the competition, teams will be given guidance from experts to help ensure this outcome.

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Competition Structure
Three selected Design T eams will participate in a Design Competition. Design T eams will develop innovative sand retention solutions using the Design Brief and Design Criteria as core guidance. The development of designs will be supported by the Project T eam over three Design Rounds, which will include Internal Reviews by the Project T eam, Charrettes, Regional Briefings, and Public Workshops (see below for more detail). A final review after the third round will be made by a Jury, and their recommendation will be provided to the City of Oceanside’s City Council, who will vote on the winning design.

Design Rounds
Each of three Design Rounds will take place over an eight week period. The first four weeks of each round will be largely driven by Design T eams working independently, although the Project T eam will be available to respond to clarifying questions or requests for more information at any time. At the end of each four weeks, the Project T eam will provide an Internal Review, which will be followed by Charrettes in week five or six, and Public Workshops and Regional Briefings in week 8.

Internal Review
T o provide initial guidance and feedback to Design T eams, the Project T eam will review submitted materials halfway through each Design Round, and will provide feedback through a video conference within five working days of receiving materials.

Charrettes
Design T eams will be required to participate in a Charette in the fifth or sixth week of each of the three Design Rounds where the Project T eam, and other project advisors will provide feedback and comments on progress made on pilot project concepts. These will be hybrid events, although in-person participation is encouraged if possible in Oceanside.

Charrette One
•
Setti
ng the stage, getting input from the City T eam and the Project T eam. • Prese
ntations from local groups on the Oceanside community, coastal resources, and coastal vision for Oceanside and the greater North County San Diego Region. • Oppor
tunities to tour the coast. The Project T eam will provide general information for teams to take self-guided tours.

Charrette T wo
•
Design
T eams will share preliminary concepts and approaches.
• Proje
ct T eam and advisors will provide feedback on preliminary design concepts. • Oppor
tunity for Design T eams to ask questions and gain insight on how to improve designs.

Charrette Three
•
Design
T eams have developed refined approaches and concepts.
• Oppor
tunity to gather insight on fine tuning designs.

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Public Workshops
The Project T eam will host a Public Workshop after each Charette to share the progress on developing the pilot-project design concepts. The public will have the opportunity at each workshop to see the evolution of the design process as details and provide comment and input to assist in refining the approaches. Each Design T eam will be required to provide the Project T eam with figures, graphics, maps, and resources as required that can be used during the Public Workshops. Material requirements will be specified well in advance of each workshop
Public Workshop One - Exploration of Approach
The first public workshop will aim to gather broad input on the teams’ initial design approaches. Design T eams will work to gain perspective on community stakeholders’ goals and desires for the coast, and collect directional feedback to inform the designs going forward.

Public Workshop T wo - Refining the Design
The second public workshop will present more developed designs, with specific components and elements visualized with opportunities for feedback.

Public Workshop Three- Final Designs and Feedback
The third public workshop will feature final designs. T eams will clearly show how stakeholder input shaped their designs, and why they arrived at the final solutions. Public comment will be gathered and analyzed, and provided to the Jury and City T eam as an input to decision making.

Regional Briefings
Given the regional interest and potential impact of the Project at various scales, at the end of each Design Round, the Project T eam may organize a Regional Briefing to share updates with regional stakeholders. Representatives from Design T eams will be invited to participate, although no new materials would be expected to be developed.

Jury
The Design Competition Jury consists of 10-voting members from various sectors and interest groups, reflecting community, regional and stakeholder interests in the implementa- tion of a pilot sand retention project. Additionally, 5-non-voting, advisory members will also be invited to advise, share their perspectives and participate. Juror’s applied to participate in this role, and the jury’s composition was established to create a portfolio of expertise and perspective that is beneficial to the final pilot project outcome. Jurors will be invited to Public Workshops (though are not expected to attend all). After the 3rd design round, the Jury will review the final designs, and vote to select a preferred design, and will draft a recommenda- tion which the Project T eam will submit to City Council for a final decision.

Below is a complete list of jurors assembled for this project.

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Voting Members:

1. Coasta
l Management Expert—Dr. Lesley Ewing PE, former Sr. Coastal Engineer, California Coastal Commission

2. Permi
tting Viability Expert—Dr. Charles Lester, Director, Ocean and Coastal Policy Center, Marine Science Institute, UC Santa Barbara

3. Surf Re
source Preservation—Chris Abad, Director, Oceanside Boardriders Club

4. Nearsh
ore Marine Expert—Dr. Dan Pondella, Professor, Biology; Director, Vantuna Research Group, Occidental College

5. Nearsh
ore Marine Expert—Karen Green, Division Manager, Marine and Aquatic Ecosystem Resources, Tierra Data, Inc.

6. Coasta
l City Representative— Councilmember Dwight Worden, Del Mar City Council, Chair of SANDAG Shoreline Preservation Working Group

7. Coasta
l City Representative— Councilmember Joy Lyndes, Encinitas City Council

8. Communi
ty Representative—Bob Ashton, President/CEO, Save Oceanside Sand (SOS)

9. Communi
ty Representative—Scott Ashton, Chief Executive Officer, Oceanside Chamber of Commerce

10. Communi
ty Representative—Ernie Prieto III, Local Business Owner (Oceanside Sea Center), Boat Captain and sits on City of Oceanside Harbor and Beaches Committee
Non-Voting Members:

1. Feder
al Agency— Dr. Arye Janoff, Coastal Geomorphologist, Planner, and Manager

2. State
Agency—Jeremy Smith, Coastal Engineer, California Coastal Commission

3. Grant F
under—Megan Cooper, Deputy Regional Manager, California State Coastal Conservancy

4. NGO—M
itch Silverstien, Policy Coordinator, Surfrider Foundation San Diego Chapter

5. NGO—C
urt Busk, President, Buena Vista Audubon Society
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Attachmnent A

OCEANSIDE
Jayme Timberlake
Coastal Zone Administrator
City of Oceanside
Attachmnent A
RE:BEACH DESIGN TEAM COMPETITIORS

1. Deltares USA (Dutch Team)
- With MVRDV

2. SCAPE (NYC Team)
- With Dredge Research Collective and ESA

3. ICM (Aussie Team)
REBEACH.ORG
Attachmnent A
REBEACH.ORG

PUBLIC WORKHOP ONE
Attachmnent A
Deltares + MVRDV
Attachmnent A
SCAPE
Attachmnent A
ICM
Attachmnent A
REBEACH.ORG

PUBLIC WORKSHOP TWO
• OCTOBER 17, 4-7p Oceanside Museum of Art – PLEASE ATTEND  • Major Design Proposed
• Design Criteria
• How design concept(s) meet design criteria
• Downdrift impacts addressed through adaptability
• Public Outreach
• How Public Workshop feedback influencing design
Attachmnent A
August 29
October 17
December 13
Attachmnent A
Design Teams want your
feedback to help design
the right solution for
Oceanside and the region!
Public Workshop Two
October 17, 4-7p at OMA
RSVP and learn
more at
participate atREBEACH.ORG
Attachmnent A
I~ 1:: I~ l:t\C: I~

OCEANSIDE
Jayme Timberlake
Coastal Zone Administrator
City of Oceanside
Attachment B

COASTAL PROCESSES IN OCEANSIDE
Photo source: UCSB Aerial Library Photo source: UCSB Aerial Library Attachment B

SAND MANAGEMENT IN OCEANSIDE
Year Activity Sand Nourishment
{Cubic Yards- CV)
1942-1944 Camp Pendleton Harbor- Initial Construction 1,500,000 1958 Camp Pendleton Harbor - Improvements 800,000
1963 Small Craft Harbor- Initial Construction 3,400,000 1966 Harbor Mouth Dredging and Sand Disposal 684,000
1981 Harbor Mouth Dredging and Sand Disposal 863,000
1982 Harbor Mouth Dredging and Sand Disposal 922,000
1982 San Luis Rey River Dredging 1,300,000
1989-1992 Sand Bypass System 124,300
2001 Regional' Beach Sand Project I 421,000
2012 Regional Beach Sand Project II 293,000
RE:BEACH OCEANSIDE OBJECTIVES
• Main Objectives
• Buffer the coastline with sand
• Extend sand nourishment efforts
• Design Competition -WHY?
• Encourage innovative sand
retention
• Early regulatory involvement
• Promotes public outreach
• Transparency in decision making
• Stimulates interest
• Promotes international and
nationwide coverage
• Showcase solutions for others
Attachment B
RE:BEACH COMPONENTS
• RE:BEACH Players
• Jury/Advisory Panel
• Project Team
• City Team
• Design Teams
• Design Criteria
• Established criteria and
performance standards
• Physical
Environmental
Financial
• Social
Regional
• Rubric for evaluating designs
Attachment B
s111::1::1> HIIMl1 • TC>l1 01= m::1\c:11 • 111::J\l)IJ\NI> & 111:llM 1WO HEADLANDS AND LOW COBBLE BERMS {ADJUSTABLE)
OesignCrl teria1
Physical
i-Perf~rmance ~Is.
o to 3 \18afS. MJnimo!!mpact on beach !oilowlng
const,udion and nourlshmen\ (wide beach).
3 to 15 years. Stablllsa!lon ol upper beach to
! allow r01 dune dt111elopmen1
i Posi tioning.
! LOC!llions iocused on p,oviding maximum
benefit to beach with grealesl public accass
andusaga.
' Oegig n.
30,yeardC$ignllfebilscdonma terlals.crest
Might&oxpe rlence.
' Repllcatesna turalh8adtand fea1ures
lhrougho:.11 the Southern Californian coll:Slline.

RockstwllcaninCOfpo1a re!oca l cobblain10
rocl.:bag.s.

Design Criteria 2
Fimmclal
DeslgnCriteria3
Environmental
! =•!~':,r::1.o~ ( =f~edr::::Dat!
, ! , h:lbltatsandlmp10 ve
• ~:::::./';;Headland(-5% f ! beachecMyStems.
anr,ual aUowanm)
l..Dwmalrrtenem:e
requllememslfpiO!)'.lr~/
deslglll!dandc:cmtl\/Cled,
lnclucllngannu~llnspec'Jon
andramovalo ldllbtl~
v11getation011ubbl.h.

Helps lOJBSIOIBfla lUlil\
• beachsandto0t'1anslde.

Rocl.shellprovides
1 substrnteand!iltl.lCIU!El
. formai!nehabl:!ai.

DesJgn Criteria 4
Social
Prcr.il0011ml)fove\:lbeacl'l I
stabili1y1ndwtderbMcha1
ruoooolgtc8lllllpublkl
us1geandaCOl!na1
Oceam.ioo.

Provldesu3nsformaUYe
i opportun1Hesloraddltl011al
' publicamenltles(parks,,
hosp~alhy,.ser.Ac:eseicl
PrQ\l!d6\oppcrwmtftsf01
, 11'1Cfe!j~ll(.'a!S!l10the
Adjusiable befmwo1k5 ~•
1equi,l!ddUtlngp:!lotS1ag,e
i Potent!allo r on•lllnd ' 003Chlo,pub!lc.
• d6sJwna!edgreenareas ,
j Roek&1moo,may1equlte1e
st~ck.ingoctoppingupofroc:k
, 11,'iU~A 1O 102Oyaa,soraft111
SEM!r~ stormcl.Jl>dition5.
l_ ----··-
::=~~=tttoralor !
1 ~~;:;~~,:o!
! public.

Design Crtteria 6
Regional
E&lllyrepllcsbleCOl'!cep\
wllhmu1trple
translo,n,allvo
oppor1unitlesrorpubllc
bel'Hlfit
Headland&p,:1011c:anbe
u~1gned1op,ovide
specmctie~ni.1.t0local
area fie.surf museum
<.ftsp\uye\Oct!tlnlidel.

Lowlmpact,tolongshore
transportandlmptoY!ld ,
bype:mr>garwr>dro unded
heac:llar.d.

Attachment B
RE:BEACH COMPETITORS

1. Deltares A+ MVRDV (Dutch Team)

1. SCA.ff dge Research Collaborative
(
RE:BEACH PUBLIC WORKSHOPS
Public Workshop 1 - August 2023
Public Workshop 2 - October 2023
r---~i;:;;~~- -,.,~=· ~ V
Attendance
more than 220
attendees 0
Duration
4-7pmPT,
3baurs
20%•0t hor -- / ln· 920S4
n •92084 '@ Demographics
3"· 92008 . AmowitofResponses:
187 + zip codes
llll-92058 -
t.n: -92056 - - l.Sll-92057
Attachment B
0 OCEANSIDE
Deltares tuMYsRDV
odiA NS IDE
SCAPE +ESA + Dredge
Collaborative

1. Submerged
patches

2. Headland for top
of beach sand
trapping and
public amenity

3. Reef/ nearshore
sand trap

4. Bypassing pump
outlet from
Headland
--
· ·-e·· • • I •
. . . .. • . .

Bypasseill!t under "Seal" ~
• Adds boundary from beach to road . _ ,...
• Allows for beach level to raise & SLR '- , ..... 'I.id • Access to pipe maintenance h ~ iiif?..
ttp~ .. -
Booster ellmR under "Stepsn
• Hides pump stations
, Seating for public use/ watching surf comp .

Scan for bVJ.!:a~s Info
~
Attachment B
RE:BEACH WINNING DESIGN ✓ Headland Scale

PILOT AREA
Proven at site to stabilize top of
beach and allow sand transport
, ................................................................................ . • . . . • . . . . • . • . • :;
................................................................................. ✓ Nearshore Nourishment
Proven in similar conditions
✓ Eco-engineered Reef
Proven in similar conditions

OCEANS ID E
RE:BEACH WINNING DESIGN - HEADLANDS

BEACH USABILITY

SCHEMATIC CONCEPT LAYOUT
Attachment B
Q

OCEANS IDE
Attachment B
RE:BEACH WINNING DESIGN - ARTIFICIAL REEF
'
"LIVING SPEED BUMPS" & COASTAL RESILIENCE
Slow down natural processes to retain sand longer . Not 'trap' sand.

OCEANSID E
Attachment B
RE:BEACH TIMELINE
Contracting & Onboarding Design Round 2 City Council Vote & Public Event Week 1: Notice Sent Week 4: Internal Review Weekl: JuryVote Week 2: On boarding Begins Week 6: Charrette Week 3: Consistency Review Week 3-4: On boarding Sessions
Week 5: Contracts Finalized
Week 8: Public Workshop
October 17
-----tllll► Week 6: City Council Vote
MAY :n-,JLJN 26 ,JUL :i-AlJG 21 i\lJG 28-0CT 16
Design Round 1
Week 4: Internal Review
Week 6: Charrette
Week 8: Public Workshop
August 29
OCT 2:HJl:C 11 Dl:C 18-,JAN 29
Design Round 3
Week 4: Internal Review
Week 5: Charrette
Week 8: Public Workshop
December 13
0 OCEAN SID E
WHAT HAPPENS AFTER THE DESIGN COMPETITION?
Final Engineering and Design:
• ~1.s to 2 years
• Shovel-ready Project in early 2026
• Siti ng analysis
• Utilize modeled design concepts in different locations Seagaze to Wisconsin
• Wisconsin to Buccaneer Beach
• a selected location between Buccaneer Beach and Buena Vista Lagoon Environmental compliance and permitting
• Progra mmati c Enviro nmental Document
Resource agency permit s (CCC, USACE, RWQCB)
• Adaptive management prog ram
• Define triggers & management actions
• Closely coordinated with region .

Public Outreach and Regional Engagement
• SAN DAG Shoreline Preservation Working Group
• Sediment Management Technical Task Force
• C7 Coastal Cities Meet ings
• San Diego Regional Climat e Collaborat ive
• Beach Ecology Coalition
• Staff to staff discussions
• Other engagement oppo rtuniti es
Attachment B
Att achment B

OCEANSIDE COASTAL MANAGEMENT
Current Coastal Resiliency Efforts
• IRE:BEACH Oceanside
• Army Corps of Engineers Oceanside
Mitigation Study
• Buena Vista Lagoon Enhancement
Project
• Loma Alta Creek Enhancement
Project
• SCOUP Projects
• Solana Highlands
• Seagaze
• San Luis Rey Estuary Restoration
Project
• Coastal Dunes Restoration Project
Collaborations
• C7 Meeting
• SAN DAG Oceanside Littoral Cell
Technical Taskforce
• Shoreline Preservation Working
Group taskforce
• Problem Solvers Caucus
• Buena Vista Lagoon Joint Powers
Authority
• San Diego Regional Climate
Collaborative
• Coastal Resilience Road Map
• Coastal Dunes Network
Attachment B
Thank you for your time!
Council Workshop
January 31, 2024
5:30p
Learn more at
REBEACH.ORG
odfAN SIDE

STAFF REPORT CITY OF OCEANSIDE
DATE: January 31, 2024
TO: Honorable Mayor and City Councilmembers
FROM: City Manager’s Office
SUBJECT: RE:BEACH OCEANSIDE WINNING DESIGN WORKSHOP

SYNOPSIS
Staff recommends that the City Council take the following ac tions for the RE:BEACH Oceanside Coastal Resilience Competition:

1. Receive the conceptual alternatives and concur with the following staff recommended options:
a. Approve the staff and jury recommended selection of International Coastal Management as the winni ng design team , with its Living Speed Bumps concept
b. Approve the staff and jury recommended modifications to the selected design concept

2. Authorize staff to proceed with final design, engineering and environmental compliance tasks of the Phase 2 Sand Nourishment and Retention Pilot Project

BACKGROUND
Project History
Since construction of the Camp Pendleton Boat Basin and City’s Small Craft Harbor (Harbor Complex), over 21 million cubic yards (cy) of sand have been artificially placed on City beaches from e ither dredging activity to build the two harbors , the removal of sediment from the San Luis Rey River, the U.S. Army Corps of Engineers annual navigation dredging program or one-off, local or regional beach nourishment events.

Despite all these efforts, coastal areas south of Harbor Beach (i.e., south of South Jetty) have been largely unable to sustain a dry sand beach for recreational, ecological and coastal storm damage protection purposes.

In 202 0, the City conducted a year -long preliminary engineering evaluation and Feasibility Study to identify deficiencies in current coastal management actions as well as to determine a suite of solutions to lessen long-term beach erosion and mitigate the effects of the Harbor Complex . The Feasibility Study (Phase 1) concluded that 1) a high-quality source of sand , coupled with a beach nourishment program , should be Attachment C
2 identified to provide more efficient and consistent beach nourishment opportunities, and 2) retention structure(s) are desirable as a means of retaining pl aced sand, since historical surveys and anecdotal data have shown that placed sand does not persist on most of Oceanside’s beaches.

At an August 2021 public workshop, the City Council provided staff direction to pursue the recommendations given in Phase 1. Specifically, staff was directed to move forward with the environmental analysis, design , and permitting of a Phase 2 p ilot project that would provide both beach nourishment and sand retention options. At that time, consideration was given to a pilot project that incorporated a series of groins. However, Council’s direction also provided for flexibility when it came to determining the final design to be pursued.

In May 2022, the City hired its first full -time Coastal Zone Administrator who brought an enhanced level of technical expertise in support of the City’s efforts while also providing an opportunity to further explore best practices in the area of coastal management.

On January 25, 2023, the City Council approved a contract with GHD Inc. (GHD) for the Phase 2 Sand Nourishment and Retention Pilot Project. The main tasks outlined in the Phase 2 scope included:
• Community and Stakeholder Engagement
• Baseline Monitoring Development
• Engineering, Analysis and Design
o Preliminary Design through a Design Competition (RE:BEACH) o Final Design and Engineering
o Plans and Specifications
• Environmental Compliance and Permitting

Since approval of the Phase 2 contract, development of a preliminary design for a sand retention concept has been underway through th e execution of a public design competition, called RE:BEACH Oceanside Coastal Resilience Competition . The RE:BEACH competition process was developed by the Project Team, comprised of the City’s Coastal Zone Administrator, GHD and Resilient Cities Catalyst , with ongoing support from a City Team comprised of City staff representatives from the Development Services, Public Works, Lifeguard and City Manager departments.

Design Criteria and Jury Selection

To guide the competing design teams through the competit ion and aid in the selection of a winning sand retention concept, a jury (Jury) was created early in the RE:BEACH process by the Project Team and City Team and announced in May 2023. To determine the suitability of concepts and to judge and inform the deve lopment of a sand retention design competition, community member s and regional experts from distinct categories of coastal management were asked to submit an application to be part of the Jury. The composition of the Jury was intended to appropriately refl ect the various interests in implementation of a project of this type and advise the City staff on a final Attachment C
3 recommended pilot project. Jurors were also expected to be receptive to the concept of artificial sand retention as the City Council’s prior directi on was to pursue a sand replenishment and retention program. The distinct jury categories t o be represented included the following: coastal management, Oceanside community representation, environmental compliance/ permitting viability, surf resource preserv ation, nearshore marine resource s, regional/coastal city representat ion, project funding, and state and federal regulatory agency representation. The Jury applicants were then reviewed and ranked by the Project and City Teams, and a list of voting and non -voting members was subsequently generated and confirmed. The Jury included Dr. Lesley Ewing, former Coastal Engineer for the California Coastal Commission, Bob Ashton, President/CEO of Save Oceanside Sand, Chris Abad, President of the Oceanside Boardrider’ s Club, officials from down coast cities, and Mitch Silverstein, San Diego Policy Coordinator for Surfrider Foundation. A comprehensive list of the Jury is available in Attachment 1 and

3. Throughout the three design rounds of the RE:BEACH competition, jurors were invited to participate in the Public Workshops, were regularly briefed by the Project Team on the designs as they evolved with public input, and provided opportunities to discuss and review public input , including input received during the final public workshop on December 13, 2023.

The development of the Jury early on in the competition was intentional, as they were an integral part of creating the Design Criteria (Attachment 1) by which the design concepts would be guided and ultimately judged against. To guide the criteria development, RE:BEACH established a mission: to construct an innovative, multi - benefit, sand retention project on the City of Oceanside’s beaches that serves both local and regional benefits, with all designs required to meet the bare minimum objectives:
• Align with the community character and history of place within the City of Oceanside
• Leverage previous analysis and feasibility studies completed to-date • Maintain a forward -thinking design that incorporates adaptive cap acity of solutions to future coastal conditions while addressing chronic erosion issues • Be technically feasible, financially viable, and environmentally and socially acceptable

The Design Criteria were meant to fulfill two core objectives: (1) provide a boundary of the scope of design for the p roposed solutions and (2) generate a set of objectives that Design Teams, and their solutions could be measured against.

With both the mission and objectives in mind, the Design Criteria addressed parameters involving physical performance, financial conf ines, environmental considerations, social implications and regional benefits and established the backbone of the initial design proposal solicitation.

Attachment C
4 Solicitation of Design Competitors

The Project Team invited a select number of firms to respond to the RE:BEACH proposal solicitation , based on a firms’ past project experience and expertise. Due to the multi -faceted aspects of the Design Competition, firms were encouraged to form collaborative teams comprised of multiple firms that encompass ed experienced professionals in a range of disciplines. Approximately 36 targeted firms were sent the solicitation, with 6 teams forming and ultimately proposing to be part of the competition.

Using broad, consistent evaluation criteria, the submitted applications were narrowed down to three competing teams, based on experience, proposed approach and track record of delivering innovative solutions. The three selected Design Teams were:

• SCAPE Landscape Architecture with Environmental Science Associates ( ESA) and the Dredge Research Collaborative . SCAPE is a New York City based landscape architecture and urban design firm with offices in New Orleans and San Francisco. The team works to create well -designed, ecologically restorative and socially engaged landscapes throu gh diverse forms of design. ESA is an environmental consulting firm, specializing in design, permitting and implementation across the West Coast, bringing regional environmental science and engineering expertise to SCAPE’s concept. Dredge Research Collabor ative is an independent non -profit that provides leadership on sediment use and transport across the United States, and an in-depth understanding of sediment transport.
• Deltares with Deltares USA with MVRDV: Deltares is a nonprofit, solution-driven Dutch firm which boasts a robust knowledge of major societal issues and realizes the urgency behind finding equitable, sustainable solutions along coastlines .

Deltares’ mission revolves around working passionately to find answers to some of life’s biggest envir onmental questions. MVRDV is a global architecture and urban design firm that focuses on contemporary issues, especially resilience, in regions across the world.
• International Coastal Management (ICM): ICM is a n Australia -based firm that was f ounded in 19 89. ICM’s mission is to provide the best sustainable and innovative solutions in coastal engineering, while protecting and enhancing marine environments worldwide. From the Gold Coast in Australia to Europe and the Caribbean, the team of coastal engineers has experience with various technical coastal designs, having completed projects for SeaWorld, the Gold Coast Waterways Authority, the Nature Conservancy, and more.

Design Round Charettes and Public Workshops

Three Design Rounds or Charettes were planned between June to December 2023 to support the Design Teams in the development of their final sand retention conce pt.

Design Teams participated in a Charette in the sixth week of each of the three Design Rounds where the Project Team , City Team and/or Jury provided feedback and comments on the progress made on pilot project concepts. Each Design Round Attachment C
5 culminated with a presentation to the public at an in -person Public Workshop that was recorded with digital versions of the presentations available for subsequent viewing.

Charrette One was focused on an introduction to conceptual ideas and getting input from the City Team and Project Team on coastal processes and high-level visioning for Oceanside and the regions’ coastal areas. At Charette Two, Design Teams were asked to share preliminary concepts and approache s, with ample o pportunity for Design Teams to ask questions of the Project Team and gain insight on how to improve designs. At Charette Two , Design Teams also focused on how their concepts were successfully achieving the established Design Criteria. At Charrette Three, Design Teams were asked to enhance approaches and concepts , focusing on financial evaluations and technical refinement with input from the Project Team, City Team and Jury.

Each Public Workshop supported a similar program, with the Design Teams presenting their latest concepts and the public being given t he opportunity at each workshop to provide direct comment and /or input via questionnaire to assist in refining the approaches. The Design Teams were required to develop figures, graphics, maps, and visual resources for use during each of the Public Workshops.

Public Workshop One aimed to gather broad community input on the Design T eams’ initial design approaches, giving each team an opportunity to further gain perspective on community stakeholder goals and desires for the coast, and collect directional feedback to inform the designs going forward. Public Workshop Two depicted refined designs , with the technical aspects of sand retention more developed and elements visualized with opportunities for additional feedback. Public Workshop Three feature d the final designs. The Design Teams were able to clearly show how stakeholder input shaped their designs, and why they arrived at their final solutions.

All Public Workshops were open to the public and were available virtually via a recording of the presentations with accompanying digital versions of materials . Each Public Workshop was heavily noticed via press releases, on the City’s webpage, and on social media platforms, as well as via pop -up events. The workshops were very well - attended with approximately 150-220 persons participating at each workshop .

Aggregated comments from all three Public Workshops are provided in the Community Input Summary (Attachment 2).

Given the regional interest and potential effect of the implemented project at various scales, the Project Team share d updates with regional stakeholders at each of the downcoast cities within the Oceanside Littoral Cell. Upon each jurisdictions’ request, informational presentations summarizing the RE:BEACH competition, followed by a question and answer period, were made from October to December 2023 at the following cities:
• October 2023, Carlsbad Beach Preservation Commission
• November 2023, Del Mar City Council
• November 2023, Solana Beach City Council
Attachment C
6 • December 2023, Encinitas City Council

Additional local and regional outreach of the project occurred during the design competition:
• March 2023, Oceanside Coastal Neighborhood Association • March 2023, Oceanside Chamber of Commerce
• May 2023, Smart Coast Cities Summit
• September 2023, SANDAG Sediment Management Technical Task Force • October 2023, C7 Coastal Cities Meeting
• November 2023, Oceanside Chamber of Commerce
• November 2023, San Diego Regional Climate Collaborative • November 2023, Headwaters to Ocean Conference
• December 2023, Oceanside High School

Prior to the initiation of RE:BEACH, leading up to the City Council decision to approve the Phase 2 contract, the following public outreach efforts were made:
• May 2022, Encinitas Environmental Commission
• June 2022, SANDAG Shoreline Preservation Working Group • October 2022, Carlsbad Beach Preservation Commission
• October 2022, Save Oceanside Sand (SOS) Member Meeting • November 2022, SANDAG Shoreline Preservation Working Group

Jury Deliberation

The Jury, comprised of voting and non -voting members, designated a winning design concept during the final Jury Deliberation held on December 14, 2023. The Jury utilized the distinct parameters o utlined in the Design Criteria to evaluate the designs throughout the competition, leading to critical analysis of the designs at the final Jury Deliberation. This recommended winning design aligns with the City staff s’ recommendation for a sand retention conceptual design that, upon City Council direction, can be moved into the final engineering and environmental compliance tasks under the approved Phase 2 Project contract. The Jury’s collective comments and feedback assisted City staff in the development of recommendations to support the winning design. The winning design and associated Jury and City staff recommendations are described in detail in the Analysis section below. A detailed summary of the Jury Deliberation , including the Jury roster and their specific recommendations, is found in Attachment 3.

ANALYSIS

Staff and the jury recommend that the City Council approve the preferred alternative:

International Coastal Management’s “Living Speed Bumps” concept. The Living Speed Bumps concept proposes to construct one multi -purpose offshore artificial reef and two headlands, supported by nearshore and on beach nourishment, (Figure 1; Attachment 4), in a location that shall be determined in the next phase of the Project.

Attachment C
7 Figure 1. Conceptual diagram of Living Speed Bumps design (final location TBD)

The conceptual reef design that ICM developed included two options for reef materials (i.e., quarry rock or geotextile bags) and included two different reef shapes and sizes .

These design elements were based on ICM’s prior project experience on the Gold Coast of Australia. As proposed, the reef shall be placed at a depth of approximately 40’, which is estimated to be 900’ offshore. Two artificial headlands would be positioned on the shore both north and south of the reef. Conceptually, ICM suggested the headlands extend roughly 150’ seaward and be 150’ long. The headlands would consist of rock outcrops that would assist with beach stabilization, creating more opportunities for intertidal habitat, and mimicking natural and artificial headland formations in southern California.

The offshore reef’s design intent would be to dissipate wave energy through wave breaking, which would in turn stabilize the beach in its lee (i.e., shoreward of the reef).

The cre st of the reef (i.e., how shallow the reef is) can be optimized to maintain longshore sediment transport around the reef. The reef would be designed to primarily stabilize the beach but improvements to surfing would also be a goal.

The d iffraction of bre aking waves by the reef utilizes wave energy to contribute to slowing the rate of longshore transport along the beach, and the formation of a salient to build beach volume, mimicking natural offshore reef structures local to the Californian coast. Similar natural reef structures that provide salient formed beaches include Crystal Cove, Aliso Creek and Salt Creek beaches in Orange County. The headland features would complement this salient formation and increase the performance of beach development.

It is important to note that the specific shape and size of both the reef and headlands will be determined in the next phase of engineering design where numerical modeling, leveraged from Phase 1, will be used to optimize the design to achieve the various project objectives. Other important design elements, such as a strategy for on beach and nearshore nourishment placement, will also be further developed in this phase .

Back beach dunes will also be considered in the phasing plan for the project and can be deployed once the beach is stabilized.

Re/ference headland - beach stability Beach siahility similar to reference headland "\ Slowing of'said transport by zo 3o°.. /
_J_J
South Sand Transport
Attachment C
8 Through the design competition, rough order of magnitude construction cost estimates were developed using standard material and labor rates to provide a consistent means to compare costs across Design Teams . These cost es timates are preliminary and will be refined in the next phase of design. A rough order of magnitude construction cost estimate of the Living Speed Bumps design is $31-$41M, depending on the specific shape and size of the features as well as the selection o f the reef materials (i.e. sand filled geotextile bags or quarry rock). Annual maintenance costs of the beach sand and headlands were roughly estimated at $500k.

Design Criteria Considerations

Overall, the winning ICM concept exceeds Design Criteria in m any facets. The artificial reef, headlands and nearshore nourishment components allow for the continuation of natural coastal processes in Oceanside and beyond , as much as possible, whil e delivering on the retention of sandy beaches . Coupled with beach and nearshore nourishment, stabilization of the back beach is expected to begin within 3 years following completion of construction of the structural components. The need for ongoing maintenance is expected to be minimal once properly designed and constructed .

Environmental conditions are expected to improve with construction, as beach habitat is expected to be restored and attract local and migratory shorebirds that once concentrated along the coastline. Socially, the concept adds safe access paths to the ocean through the headlands and increases park space and ocean viewing opportunities. Surf resources were a prioritized element in the design and will continue to be a focus as the design is refined. Regionally, the design supports the continuation of on-going l ongshore transport and natural coastal processes , maintaining natural function of the littoral cell and minimizing the potential for negative downdrift impacts.

Public Feedback

The ICM Living Speed Bumps concept overwhelmingly received positive input from the public for its professed ability to retain sand on the beach and provide other recreational benefits. ICM received an abundance of written comments from the public , stating their concept was their “favorite” or “best” option. Scalability potential was high with the ICM design according to public feedback, with application in additional areas of Oceanside’s coastline seemingly most feasible with this design. Similar to Jury feedback, recommendations from the public included a need to consider influences of the artificial reefs on sand bars to improve and/or maintain surf resources. Recommendations from the public also suggested that the design team conduct careful analysis of the structures placed and how they may impact the safety of surfers and swimm ers. The public expressed a desire to see more natural elements in the design of the headland. A summary of public feedback provided throughout RE:BEACH is included in Attachment

2. Attachment C
9 Suggested Modifications

The Jury provided valuable feedback and recomm ended modifications in its evaluation of the preferred design concept ( Attachment 3). Notably, the Jury agreed that the ICM proposal seemed to be the most effective at beach stabilization , while taking into consideration local needs, such as adding naturalized park spaces in the headlands and preserving ecological and surf resource s through their design. Additionally, the Jury recognized that the design had already been tested by ICM along similar coastlines in Australia, and therefore maintained confidence in the ability of ICM to deliver a successful pilot project with the greatest opportunity to be scaled up and applied in other areas of the Oceanside coastline once the success of the pilot project was proven to work locally.

The Jury and City staff recommend several key modifications to the design: (1) refinement of the headlands to use a more environmentally and/or aesthetically pleasing composition that blend s better with natural coastal formations , (2) utilization of rock instead of geotextile bags f or construction of the artificial nearshore reef , and (3) development a robust monitoring program that captures both ecosystem benefits and surf resource improvements/changes that the artificial reef may afford, which would be applicable to environmental p ermitting discussions with the resource/regulatory agencies.

• Refinement of the design of the artificial headlands and a thoughtful proposal for programming on top of the headlands. Several jurors requested the use of more natural materials and a headland design that better fits Oceanside’s character.

The finalization of the headland designs needs to consider the opportunity for creating multiple-benefits.
• Strong consideration of the use of natural materials (i.e. rock instead of geotextile bags) for the artificial reef. Most jurors raised concerns or objections to the geotextile materials proposed by ICM for three reasons: increased maintenance cost to replace or repair geotextile bags, the introduction of non -natural and/or plastics into the water, and r elated public perception and permitting issues. ICM responded to jury questions about the geotextile bag option, stating that the use of the geotextile bags versus rock allows the City to pilot the viability of an artificial reef to influence beach sand retention at a cheaper cost. Past projects in California that have relied on geotextile bags have experienced issues due to structural degradation with UV exposure and complications during removal that resulted in debris issues and logistical challenges. Whi le material technologies have improved, and costs for using rock are much higher than geotextile bags, the Jury and Project team recommend going forward with a design that utilizes rock while still learning from ICM’s experience with other materials. • As the reef advances in design , the City should go further in exploring potential ecosystem and surf benefits that the reef could provide . The City should also be prepared to provide mitigation for habitat conversions (i.e. conversion from sandy subtidal habit at to rocky subtidal) that may be required by the Coastal Commission.

Attachment C
10 Design Competition – Non-preferred Alternative Concepts

Below is a description of the two non-preferred alternatives considered by the Jury for the RE:BEACH Oceanside Competition. A summary of all three design concepts is also available in the table below.

• SCAPE Landscape Architecture with ESA and the Dredge Research Collaborative
o Dunepark/Hybrid Beach
As proposed, t his team’s design could extend the existing 5 -30 feet of usable beach area to 40 -100 feet by elevating and retreating the Strand eastward and transforming an existing playground and lawn at Tyson St.

Park into a dune area, called Dunepark. These on-land components would be supported by cobble crests in the intertidal zone and nearshore reefs in the subtidal zone, which proposed to encourage modest accretion of sand on the foreshore called the Hybrid Beach . A walking path through the dune area as well as dedicated sandy walking paths to the shore through the cobble crests was also proposed.
o Jury Feedback
▪ The Hybrid Beach concept was perceived to provide the least amount of sand retention and accretion, which brought into question the structural integrity and user experience of cobble - based design elements.
▪ While the Hybrid B each design was innovative and interesting, it was untested and had the potential to require more frequent and costly maintenance.
▪ Dunepark was lauded as an exceptional concept that could be explored at a later date beyond RE:BEACH by the City of Oceanside, as an improvement to the existing shoreline park at Tyson St.
o Public Feedback
▪ Dunepark proposed to create a more usable and appropriate Tyson Street Park, but retreat of the Strand seems arduous.
▪ Overall, the public expressed a general c oncern around the Hybrid Beach concept feasibility and ability to perform , as it had not been tested or tried in any other location.
▪ Cobble is challenging and difficult to walk on, making the usable beach space potentially less accessible and the design less lauded by the public.

• Deltares with Deltares USA with MVRDV
o Green Dream Peninsula
This Green Dream Peninsula would mimic a natural peninsula structure, constructed out from publicly-owned beach front spaces , utilizing existing rock and imported quarry rock. The designed peninsula would jut out approximately 360 feet in length from the back beach, and 500 feet in Attachment C
11 descending width. The concept was proposed to occur westward from any publicly owned beach access area, but grounded at Buccaneer Beach where the design would extend Loma Alta Creek to facilitate creek flows out to the ocean . The Peninsula space would allow for increased recreation opportunities , improved beach access and environmental enhancement.
o Jury Feedback
▪ While the nature-based design elements of this concept were highly regarded, including the proposed naturally shaped headland, there were several concerns identified by Jurors , which included uncertainty of sand accretion on north and south sides of the headland, concern over water quality if locate d at Loma Alta Creek, and potential flanking impacts north and south of the structure into private revetments.
▪ While innovative, the design was perceived to exaggerate the overall public benefit coming from only one proposed headland. o Public Feedback
▪ The public expressed concerns over the placement of the feature at Buccaneer Beach and the potential impacts to surf resources. ▪ The public had difficulty understanding the potential scalability of this concept, as headlands may need to take on different shap es at different location to retain sand and the overall size seems marginal for the desired objective of maintaining a sandy beach. ▪ The public articulated some concerns over safety of beach goers in the accessing ocean -facing salt water pools and sustaining water quality with an urban creek flowing out adjacent to the pool.

Attachment C

SCAPE Deltares + MVRDV ICM (WINNING DESIGN)
Overview of
Concept
Dunepark shifts the Strand inland, and
reconfigures existing space into dunes which
connect to the Hybrid Beach, a perched sandy
beach atop a cobble berm comprised of existing
and imported cobble stabilized by 3 small cobble
crests (50ft x100ft), 4 large cobble crests (65ft x
130 ft) and 4 nearshore reefs (70ft x 90ft).

One peninsula/headland (500ft x 360 ft)
comprised of rock allows for sand
nourishment activities to be stabilized and
help restore usable beach area on both
the north and south side of the peninsula
One submerged offshore reef (made of either rock
330ft x 610ft or geotextile bags 490ft x 900ft) and
two ‘living headlands’ (150ft x 150ft) made of rock,
cobble, and sand that are designed to mimic natural
processes can improve sand retention and beach
resilience.

Reasonable
expectations
for the
concept to
restore
sandy
beaches
Initially creates 30-100ft wide sandy, stabilized
perched beach with a cobble berm. Most of the
new beach area comes from the construction of
the Hybrid Beach with partial sandy beach from
Dunepark.

Initially creates 50-100 ft wide sandy
beach directly north of the peninsula. The
effective beach width decreases to about
40 feet in the first 0.5 mile north of the
peninsula. Sand nourishment and
accretion would also be anticipated south
of the peninsula.

Initially creates 100ft wide sandy beach, with a
nominal 1:25 slope to seaward. Our ‘speed bump’
approach is targeting a slowing of longshore
transport by about 20% to 30% of existing
conditions.

Concept
integration
with
sediment
managemen
t activities
The concept may require replenishing sand atop
portions of the perched beach and/or atop and
between the cobble crests after storms. The
concept could be completely covered with a
larger beach nourishment along the shore.

The design can make regular beach
nourishment activities more effective by
slowing down transport. Specific sediment
management placement patterns north
and south of the structure would be
developed once final design and modeling
is completed.

The design can assist regular nourishment activities
by slowing longshore transport to retain and
stabilize a sandy beach, and support a strategy of
more cost-effective nearshore nourishment protocol.

Options for
concept to
be adapted
and modified
should
undesirable
effects be
observed
The cobble berm will use some similar sized
rounded rock to existing material so much of it
could be left in place. If the larger rocks placed
on the crests and reefs are displaced or deemed
problematic, they may be re-distributed, removed
or repurposed into the backshore cobble berm.

The sand retention effect can be adapted
by seaward extension of underwater
portion of the tip of the peninsula.

Depending on desired
bypassing/connectivity this can be altered
even after construction. Removal of parts
of the peninsula is not likely required,
although it can be done from the land.

The reef, whether comprised of sand-filled
geotextile containers or boulder rock, can easily be
adapted to improve performance outcomes, or
removed if necessary. The porosity and crest height
of the low-crested berm can be easily adapted to
increase/decrease sand bypassing by
removing/adding re-usable rock-bags or returning
cobble fill to the beach.

Largest risk
or
uncertainty
around
concept
There is a high degree of certainty around the
stability of the upland Dunepark portion of the
proposal. The Hybrid Beach applies novel
concepts that hold uncertainty around the level of
sand accretion and level of structural integrity.

The performance of the concept will
depend on the quality and volume of sand
nourishment activities over time will be
determined by the state of the beaches.

Some uncertainty of rip current formation
but not different than for other coastal
interventions.

Confidence that concept will result in a significant
degree of slowing of longshore transport.

Uncertainty around the exact degree to which sand
is slowed and retained at the beach. The
expectation of a ‘surfing reef’ should be properly
managed as the reef’s primary objective is sand
retention and storm protection.

Rough
Order of
Magnitude
cost
estimates
Project Construction Total: $19. 8M
(Hybrid Beach: $6.2 M and Dunepark: $13.6 M)
Annual Operation and Maintenance: Typical
winter - $100k
Large storm (i.e. 20+ year event) - $780k
Removal Costs: $2.9M
Project Construction Total: $11.1M
Annual Operation and Maintenance:
$1.8M
Removal Costs: $3.9M
Project Construction Total: $31.4M (geotextile reef),
$40.6M (rock reef)
Annual Operation and Maintenance: $500k
Removal Costs: $4.7M
Attachment C

Next Steps

The RE:BEACH Oceanside Coastal Resilience D esign Competition is the conceptual design component under the Engineering, Analysis and Design task of the Phase 2 Sand Nourishment and Retention Pilot Project . To reiterate, the main tasks outlined in the Phase 2 scope include:
• Community and Stakeholder Engagement
• Baseline Monitoring Program
• Engineering, Analysis and Design
• Environmental Compliance and Permitting

GHD will continue to serve as the prime consultant and will contract with ICM, the approved winning design team, to prepare final engineering plans, siting for the proposed concept and construction specifications. A s the prime consultant, GHD is responsible for preparing major deliverables, coordinating the work of subconsultants, managing the project schedule and budget, providing project status updates, and working with City staff to ensure that all components of t he project are consistent with and complementary to one another.

Community and Stakeholder Engagement occurred throughout RE:BEACH and shall continue to occur throughout Phase 2. Community engagement will take the form of formal and informal public meet ings, social media posts and surveys, and informational pop-ups.

The Baseline Monitoring Program has been ongoing since the kickoff of Phase 1.

Baseline assessments will continue in Phase 2, providing a robust dataset for the engineering analysis, siting and design tasks. Baseline assessments incorporate current surveys conducted by Scripps Institution of Oceanography and citizen science -led efforts by Save Oceanside Sand into a coastal database. Once a design concept is selected, further details on addit ional monitoring components can be compiled that reflect specific metrics to focus on.

The Engineering, Analysis and Design task incorporate s the findings from the RE:BEACH process, including input from community and stakeholder engagements and the ongoing b aseline monitoring program. This phase is also complemented by the investigation into a reliable sand nourishment source and development of a sampling and analysis plan and report. Additionally, siting of the proposed project will occur through this task.

Public and stakeholder comments submitted through out the design competition highlighted the need for solutions for all of Oceanside’s coastline, in particular South Oceanside. A siting analysis will be performed that objectively evaluates potential locations for the pilot project to aide in the City decision making process. This analysis will evaluate three (3) potential locations for the pilot project south of the Oceanside Pier, where erosion impacts are the greatest. Sites to be evaluated are antici pated to Attachment C
14 include: 1) the South Strand (Seagaze to Wisconsin), 2) Wisconsin to Buccaneer Beach, and 3) a selected location between Buccaneer Beach and Buena Vista Lagoon.

The siting analysis will focus on factors related to the successful implementation an d performance of the pilot project at achieving its established goals and objectives. The study will incorporate various factors relate d to successful implementation, which include the following factors:
• Public amenities – benefits afforded by the project should maximize public benefits.
• Coastal access – proximity of the project to public beach access locations and parking.
• Land ownership – opportunities or constraints posed by land ownership boundaries at each location.
• Lifeguard operations – opportunities or constraints to lifeguard services at each location based on feedback from City lifeguard staff.
• Biological resources – influence of project location on biological resources at Loma Alta Creek and Buena Vista Lagoon.
• Downcoast impacts – influence of pro ject location on downcoast sediment supply.
• Sand management logistics – influence of project location on ability to manage sediment supply within and around the retention system.

A technical memorandum will be produced summarizing the findings of this sit ing analysis. The memo will also address how the pilot project could be scaled up or phased in the future to provide a broader benefit to the City’s shoreline. It is assumed the findings from this analysis will be presented at one community or stakeholder meeting, likely occurring in summer 2024.

While the conceptual level design that ICM provided will be further developed to specify the shape and size of both the reef and headlands through numerical modeling, physical modeling the reef and headland compo nents could provide insight on shape, size, and orientation design elements related to physical wave processes, such as wave breaking and rip current formation. Physically modeling a reef may also provide greater confidence in the design , as physical model ing could assist will calibrating and support numerical modeling efforts.

Deliverables from this Engineering, Analysis, and Design task include final plans and specifications that will be utilized in the final task of Phase 2, the Environmental Compliance and Permitting task.

The Environmental Compliance and Permitting tasks will entail the d evelopment of a combined Environmental Impact Report and Environmental Assessment (EIR/EA), addressing both CEQA and NEPA requirements as needed, as well as the dev elopment of permit application materials and permit acquisition from the following state and federal regulatory/resource agencies:

Attachment C
15 • California Coastal Commission
• Regional Water Quality Control Board
• U.S. Army Corps of Engineers
• California State Lands Commission

Ongoing Coastal Monitoring and Management

While it is recognized that RE:BEACH is a pilot project for a specific geographic location, the intent of the pilot is to determine the viability of the proposed novel sand retention concept for use in additional areas throughout Oceanside’s coastline. A robust monitoring program, to be established under the Phase 2 Project contract, will inform our knowledge about the performance and scalability of the winning RE:BEACH design.

As monitoring commences, c ontinual attention to coastal erosion will be undertaken through the City’s broader Coastal Management Program. Ongoing coastal management efforts that extend beyond RE:BEACH include, but are not limited to:

• Utilization of SCOUP permits and placement of o pportunistic sand as suitable beach sand becomes available
• Development of dunes on the back beach in coastal areas where dry sand currently persist s and that are subject to either sand management needs or intermittent flooding
• Participation in regional sand nourishment efforts through SANDAG • Pursuit of funding and environmental compliance for execution of the Buena Vista Lagoon Enhancement Project

FISCAL IMPACT

Funding for the Phase 2 Sand Nourishment and Retention Pilot Project has already been allocate d and is covered by the American Rescue Plan Act (ARPA) Sand Replenishment Account. Of the $2.59M authorized for the Phase 2 Project, $1.93M are left to accomplish the remaining tasks. The Sand Replenishment account 837134221271 currently has an available balance of $706,300.

INSURANCE REQUIREMENTS

The City’s standard insurance requirements will be met.

COMMISSION OR COMMITTEE REPORT

Does not apply.

CITY ATTORNEY’S ANALYSIS

City Attorney analysis does not apply at this stage. Any future contracts and discretionary entitlements will require review by the City Attorney.

Attachment C
Attachment C

RECOMMENDATION
Staff recommends that the City Council take the following actions for the RE:BEACH Oceanside Coastal Resilience Competition:

1. Receive the conceptual alternatives and concur with the following staff recommended options:
a. Approve the staff and jury recommended selection of International Coastal Management as the winning design team, with its Living Speed Bumps concept
b. Approve the staff and jury recommended modifications to the selected design concept

2. Authorize staff to proceed with final design, engineering and environmental compliance tasks of the Phase 2 Sand Nourishment and Retention Pilot Project PREPARED BY:
~~ ~e-r"""'1a=-k-e~.,...._...._. ___ _
Coastal Zone Administrator
REVIEWED BY:

Hamid Bahadori, Public Works Director
ATTACHMENTS:

1. Design Criteria

2. Community Input Summary

3. Jury Deliberation Summary

4. Living Speedbumps Project Narrative
16 SUBMITTED BY:

Design Criteria
The design criteria are meant to fulfill two core objectives: (1) provide a boundary of the scope of design for the proposed solution and (2) generate a set of goals that Design T eams, and their solutions can be measured against. T o guide the criteria development, the Project is focused on a mission:

T o con
struct an innovative, multi-benefit, sand
rete
ntion project on the City of Oceanside’s beaches
that s
erves both local and regional benefits.

Any proposed solution should fulfill this mission, requiring all designs to meet the bare minimum objectives:
• Alig
n with the community character and history of place within the City of Oceanside. • Leve
rage previous analysis and feasibility studies completed to-date. • Maint
ain a forward-thinking design that incorporates adaptive capacity of solutions to future coastal conditions while addressing chronic erosion issues. • Be tech
nically feasible, financially viable, and environmentally and socially acceptable.

With both the mission and objectives in mind, the design criteria are as follows:

Design Criteria One: Physical
• Desi
gns should be in the coastal zone south of Oceanside Pier, focusing on the City’s most highly eroded beaches.
• Desi
gns should accommodate or be adaptive to up to 2-3 ft of sea level rise (that assumes 20-to-30-year design life), with minimal maintenance. The ability to accommodate or have adaptive capacity to greater amounts of sea level rise would be scored favorably.
•
Iden
tify a clear pathway for scaling of the pilot if it succeeds in its intention. • Refe
rence known design parameters from sand retention alternatives studied through the Phase One report .
• Desi
gns should be structured with the ability to perform sand retention and retain structural integrity under impacts from existing and projected future coastal conditions, including:

1. Extr
eme waves (100 yr. return interval – from northern and southern hemis
pheres), tides and winds (see companion documents, including Phase O
ne report).

2. Ex
treme temperatures.

3. Pu
blic use, trampling & vandalism.

4. Perf
ormance goals of a particular design should be articulated.

For ex
ample:
(a) Re
tain a particular average annual beach width within a
part
icular reach
(b) Pr
event overtopping beyond the beach at particular thresholds, such as 10
0-year total water level (TWL) and sea level rise scenario

5. For an
y performance goals, teams should define the anticipated time- scale d
uring which the project would be able to perform as designed. • Desi
gns should include natural and nature-based features, where feasible, which may 11 Attachment C
include onsite or imported materials, and/ or innovative materials designed for ocean compatibility.

Design Criteria T wo: Financial
• Constr
uction estimates for the designs should be presented for initial construction costs, annual operation and maintenance costs, and removal costs. Creative use or reuse of materials is encouraged to lower costs.
• Desi
gns should articulate the maintenance activities and cost for design to maintain key functions such as retaining sand, providing recreational benefits, and/or minimizing impacts to downdrift sand supply.
•
Crea
tive solutions to finance the project are encouraged that fully value the proposed project’s range of benefits (social, regional, economic, ecological). Especially if construction costs for designs exceed $50M.

Design Criteria Three: Environmental
•
Desi
gns should encourage the rehabilitation of sandy beach habitat. • Desi
gns should minimize impacts to sandy beach ecosystems and nearshore marine ecology.
• Desi
gns should be sensitive to where and which habitats may be converted as part of the design, what enhancements to ecology may occur, and where restoration of historic ecosystems may occur.
• All de
sign references to ecological benefits should be qualified with detailed information on habitat classifications, quality, change over time, and uncertainties clearly explained.

Design Criteria Four: Social
• A succ
essful sand retention project should increase usable beach space supporting coastal access and multiple opportunities for recreation. • Desi
gns should prioritize preserving or enhancing surfing resources and minimizing impacts to existing surf resources.
• Desi
gns should seek to increase or maintain the existing aesthetic of the beach. • Desi
gns prioritize public safety and low-cost recreational user experiences. • Desi
gns should maximize public benefit.

Design Criteria Five: Regional
•
Desi
gns should provide a regional and statewide opportunity to pilot, test, and evaluate novel sand retention solutions.
• Desi
gns should strive to positively impact the region both directly (i.e., by increasing sediment in the littoral cell) and indirectly (i.e., by providing knowledge beneficial to how to best design and implement retention strategies).
• Desi
gns should be particularly sensitive to the potential for sand retention strategies to impact the flow of sediment through littoral systems and be designed to eliminate, minimize, or mitigate potential negative impacts to downdrift sand supply. 12 Attachment C
Project Assumptions:
• Pilot p
roject designs will represent reasonable proof-of-concept sand retention strategies that can be piloted, scaled up, and/or repeated if appropriate. • The obj
ective is to create more time and space for the City to develop a comprehensive adaptation strategy for coastal resources.
• Proj
ect designs will assume that 300,000 cy of beach nourishment sand will be available initially within the project area and then for every five years for ongoing sediment management within the project area. The design teams can utilize this sand within their designs and propose various sand placement types within their concepts. •
Proj
ect designs will communicate uncertainty of their design’s success. • As pilot
s, project designs should be able to be adapted or removed if the project does not provide its intended multiple benefits over time.
• Proj
ect designs should be implementable, and should reflect an understanding of an ultimate need to be permitted and reviewed based on their adherence to existing laws, including the California Coastal Act. Throughout the competition, teams will be given guidance from experts to help ensure this outcome.
13 Attachment C
RE:BEACH
Community input summary
Attachment C
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2 RE:BEACH
Community input summary

OVERVIEW
RE:BEACH is Oceanside’s coastal resilience competition that brought together three de - sign teams from all over the world: International Coastal Management (ICM) from Australia, Deltares and MVRDV based in the Netherlands, and SCAPE Landscape Architecture who have offices in New Y ork and San Francisco alongside their California based partners, ESA and Dredge Research Collaborative. The teams herein will be referred to as ICM, Deltares and MVRDV, and SCAPE. The entire design competition lasted eight months and included three public workshops, on August 29, October 17 and December 13, 2023.

RE:BEACH is supported by a Jury, comprised of regional and local experts and regulatory agency members. The voting members of the Jury, with support from several non-voting members on the Advisory Panel, will ultimately select a winning design concept. Public input gathered through the RE:BEACH process has directly informed the design and the programming of the concept, bringing the project into alignment with the community of Oceanside’s goals and desired uses of space.

THE SUMMARY
The Community Input Summary is an overview of the feedback provided by the public throughout the RE:BEACH process. Input was collected through three online surveys, cor - responding with each public workshop. Every survey was open to the public for 30-days and results were provided to the Design T eams live, from the moment the online forms became available to the public through their closure. This enabled the Design T eams to stay up to date with public input and directly utilize it in their concept refinement. The survey ques - tions were designed to help advance the Design T eams work and varied from one workshop to another.

The third and final workshop, on December 13, also included an audience question and an- swer session. The questions from the public are included in this summary, as supplemental to the online survey responses.

Learn more about RE:BEACH Visit www.REBEACH.org
watch design team
presentations
review
design team slides and
concept designs
provide feedback,
by filling out online
feedback form
(> I
EA
EO OD
Attachment C
3 PROJECT GOALS & OBJECTIVES
The three design teams are each tasked with present-
ing a sand retention pilot project that is feasible and permittable in Oceanside. T eams were guided by a set
of four problem statements and a robust list of design
criteria, that together define the projects goals and
objectives.

The overarching goal of the
RE:BEACH competition is to de-
sign and construct an innovative,
multi-benefit, sand retention
pilot project in the City that
provides both local and regional
benefits. More design competi-
tion guidance was provided to the
teams and can be found in the
Design Brief.

Problem Statements:

1. How might we design a sand retention pilot
project that succeeds in the near (3 years) to
short term (20-30 years) at retaining sand while
simultaneously providing ecological and flood
resilience benefits, limiting negative downdrift
impacts and impacts to surfing resources, and it
removable if necessary?

2. How might a sand retention pilot project open
pathways for Oceanside to explore longer term
coastal adaptation?

3. How might we successfully build and monitor a
pilot sand retention project that informs future
regional coastal adaptation approaches?

4. How might a pilot sand retention project be
scaled to benefit a greater reach of the City
shoreline?
Public Workshop Goals. The goal of each public workshop is to:
raise awareness about
RE:BEACH
share design concepts
with the community
throughout the process
gain input, feedback and
direction from the public

Read here:

Design Brief
Do
DoD OD
Attachment C
4 DESIGN CRITERIA:

PHYSICAL
- Designs should be in the coastal zone south of Oceans- ide Pier, focusing on the City’s most highly eroded
beaches.
- Designs should accommodate or be adaptive to up to 2-3 ft of sea level rise (that assumes 20-to-30-year design life), with minimal maintenance. The ability to accommo- date or have adaptive capacity to greater amounts of sea level rise would be scored favorably.
- Identify a clear pathway for scaling of the pilot if it suc- ceeds in its intention.
- Reference known design parameters from sand reten-
tion alternatives studied through the Phase One report. - Designs should be structured with the ability to perform sand retention and retain structural integrity under
impacts from existing and projected future coastal
conditions, including: (1) Extreme waves (100 yr. return interval – from northern and southern hemispheres),
tides and winds (see companion documents, including
Phase One report). (2) Extreme temperatures. (3) Public use, trampling & vandalism. (4) Performance goals of a
particular design should be articulated. For example: (a) Retain a particular average annual beach width within
a particular reach (b) Prevent overtopping beyond the
beach at particular thresholds, such as 100-year total
water level (TWL) and sea level rise scenario (5) For any performance goals, teams should define the anticipat-
ed time- scale during which the project would be able to perform as designed.
- Designs should include natural and nature-based fea-
tures, where feasible, which may include onsite or im-
ported materials, and/ or innovative materials designed for ocean compatibility.

FINANCIAL
- Construction estimates for the designs should be pre- sented for initial construction costs, annual operation and maintenance costs, and removal costs. Creative
use or reuse of materials is encouraged to lower costs. - Designs should articulate the maintenance activities
and cost for design to maintain key functions such as
retaining sand, providing recreational benefits, and/or minimizing impacts to downdrift sand supply.
- Creative solutions to finance the project are encour- aged that fully value the proposed project’s range of
benefits (social, regional, economic, ecological). Espe- cially if construction costs for designs exceed $50M.

ENVIRONMENTAL
- Designs should encourage the rehabilitation of sandy
beach habitat.
- Designs should minimize impacts to sandy beach eco-
systems and nearshore marine ecology.
- Designs should be sensitive to where and which habitats may be converted as part of the design, what enhance-
ments to ecology may occur, and where restoration of
historic ecosystems may occur.
- All design references to ecological benefits should be qualified with detailed information on habitat classifi- cations, quality, change over time, and uncertainties
clearly explained.

SOCIAL
- A successful sand retention project should increase
usable beach space supporting coastal access and
multiple opportunities for recreation.
- Designs should prioritize preserving or enhancing surf- ing resources and minimizing impacts to existing surf
resources.
- Designs should seek to increase or maintain the exist- ing aesthetic of the beach.
- Designs prioritize public safety and low-cost recreation- al user experiences.
- Designs should maximize public benefit.

REGIONAL
- Designs should provide a regional and statewide oppor- tunity to pilot, test, and evaluate novel sand retention solutions.
- Designs should strive to positively impact the region both directly (i.e., by increasing sediment in the littoral cell) and indirectly (i.e., by providing knowledge ben- eficial to how to best design and implement retention
strategies).
- Designs should be particularly sensitive to the poten- tial for sand retention strategies to impact the flow of sediment through littoral systems and be designed
to eliminate, minimize, or mitigate potential negative
impacts to downdrift sand supply.

Attachment C
5 PROJECT ASSUMPTIONS
• Pilot project designs will represent reasonable
proof-of-concept sand retention strategies that
can be piloted, scaled up, and/or repeated if appro-
priate.
• The objective is to create more time and space for
the City to develop a comprehensive adaptation
strategy for coastal resources.
• Project designs will assume that 300,000 cy of
beach nourishment sand will be available initial-
ly within the project area and then for every five
years for ongoing sediment management within
the project area. The design teams can utilize this
sand within their designs and propose various sand
placement types within their concepts.
• Project designs will communicate uncertainty of
their design’s success.
• As pilots, project designs should be able to be
adapted or removed if the project does not provide
its intended multiple benefits over time.
• Project designs should be implementable, and
should reflect an understanding of an ultimate
need to be permitted and reviewed based on their
adherence to existing laws, including the California
Coastal Act. Throughout the competition, teams
will be given guidance from experts to help ensure
this outcome.

PILOT PROJECT LOCATION
• The Design T eams may have indicated a concep-
tual location to help ground their concepts in
Oceanside. However, these locations are not indic-
ative of where the pilot will ultimately occur.

• The next phase of the project includes additional
analysis, such as numerical modeling, to help
determine the location that provides the most
benefits to the broader coastline. This step also
includes assessing the specifics of permitting,
funding potential, and scalability of the selected
concept.

RECOMMENDED PILOT PROJECT DESIGN
• The three public workshops built upon one anoth-
er, each further developing and refining the Design
T eams’ concepts, incorporating the City Staff,
Project T eam, Jury, and public input. On December
14, 2023, the RE:BEACH Jury convened to deliber-
ate, review and select a winning design team and
concept. Public comments to-date were included
in the Jury’s deliberation. The RE:BEACH Jury
unanimously recommended International Coastal
Management (ICM), the team from Australia, to
move forward into the next phase of work (final
engineering, design and permitting).
• On January 31, 2024, Oceanside Staff will bring the
recommended design and pre-identified modifica-
tions, to City Council in a workshop. The purpose of
the workshop is to provide more space and time for
the City Council to engage with and advise staff on
the work.
• The comments gathered from the third workshop
are being included in the final design recommen-
dation, being presented at the City Council Work-
shop on January 31st, and are included herein.

Attachment C
6 Across the three public workshops conducted to-date, the following key themes emerged:

A Dry Sandy Beach: Overwhelmingly, respondents
reported the desire to recreate on a wide,
dry-sandy beach. Not only did we hear
vivid memories and sentimentality for
Oceanside’s beaches and surf breaks of the
past, but also the desire to create coastal resilience for the future. There is a desire to offer future generations the opportunity to share similar experiences and
create new memories—walk along the beach, watch
the sunset, surf, play with their pets and dogs, and
gather with friends and family. The ability to simply be at a beach, with sand, is a core theme heard across the competition.

Accessibility & Safety: Across all engagement, in-per-
son comments and online feedback forms,
respondents used the words ‘access’ and
‘safety’ as important components to any
pilot solution. The term ‘access’ was used
to refer to ease of enjoyment by elderly, children and
the disabled, parking, and the ability to walk along the beach. Similarly, the term ‘safety’ was used to refer to mitigating risks, like rip currents, confidence of access the ocean, and feeling safe along and on any feature
implemented through RE:BEACH. Amenities like clean
bathrooms, ample parking, showers, educational and
historical signage, playgrounds and recognition of
native history were each mentioned as ways to improve
accessibility and safety in a sand retention pilot project.

Healthy Coastal Ecosystems & Natural Elements:

Through the design competition process,
the public has been exposed to various
amenities and programming that can be
incorporated into a sand retention pilot
project. In the juxtaposition between
more nature-based elements and those that are more
built, respondents asked for the inclusion of natural
elements. Whether as a core component of the design
feature or highlighting the ability to provide habitat
opportunities, Oceanside residents and regional
attendees leaned towards more natural landscapes
and spaces for recreating and enjoying a wider beach.

Surf Resources: Many respondents and attendees
of both public workshops identified surf
resources as core to Oceanside’s identity.

While it is impossible to choose one form
of recreating along the coast as core to
Oceanside, there is little doubt, based on
responses collected, that surfing and surf resourc-
es are critically important to the local and regional
community. In each instance, feedback focused on
the need to design strategies with surfing in mind,
limit any negative impacts to surf resources, and seek alternatives that have the potential to enhance surfing amenities.

Space for V arious Activities: Feedback indicated the de- sire for enough beach to provide space for a
myriad of interests such as various sports,
activities, hobbies, and a dog park.

Each of the RE:BEACH public workshops provides
multiple ways for the community to engage.

In-Person
AUG 29, 2023 | OCT 17, 2023 | DEC 13, 2023
View playback online
Workshop 1 & Workshop 2 videos are available
to view on the City of Oceanside’s Y ou T ube chan-
nel and the RE:BEACH website (rebeach.org).

Submit digital feedback form
Workshop 1
August 29 to
September
30, 2023
Workshop 2
October 17to
November 30,
2023
Workshop 3
December 13
to January 13,
2024
Key themes
~o
OOO
O OO
l>: I
I
I
O
I
I
Attachment C
7 Public Workshop One
Summary
The first public workshop was held on T uesday, August 29, 2023 at the City of Oceanside, Council Chambers. Attendees had the opportunity to meet, speak with, and view posters from each of the three design teams in an open house format. Following the open house, the RE:BEACH project team presented the design competition process followed by three short presentations, by the design teams, about their initial ideas and concepts. The workshop was open to the public from 4—7pm PT. Video recordings of the presentations and slides are available on the City of Oceanside’s Y ou T ube channel and the RE:BEACH website (rebeach.org). An online public feedback form was made available at the start of the workshop and remained open for 30-days. Design teams were given immediate access to results, so as to quickly and iteratively integrate input directly into their designs for the second public workshop.

The first public workshop was a moment to learn about, (1) the RE:BEACH process, (2) the design teams and (3) the early concepts each team was bringing forward for consideration.

Feedback questions from the first public workshop were focused on determining conceptual preferences and strengthening the design teams’ understanding of the community and people of Oceanside. Given the origins of the design teams, feedback from the first public workshop provided insight into the major characteristics of the City and broader community.

This summary is representative of all survey questions and responses from workshop one. All public feedback and input was reviewed and incorporated into the next round of design. Answers to long-form questions and open comment fields were condensed in this summary into broader themes that emerged. While not every question or answer is included, this summary represents the key themes across all feedback received.

52% - 92054
11% - 92056
11% - 92057
6% - 92058
2% - 92083
18% - Other
Attendance
more than 200
attendees
Duration
4-7pm PT,
3 hours
Demographics
Amount of Responses:
336 + zip codes
Review:

T eam Slides
/-
\
r
O
r
I
I
l
o I
O
r I
I
Attachment C
8 Deltares + MVRDV
SCAPE

SURVEY QUESTIONS
What are the strongest elements you wish to have
incorporated into the final design?
• Sandy Beach
• Tidal Pools
• Backshore Vegetation
Which one of these descriptions represents Oceanside
stability best for you?
75% - Oceanside beach as a place for human
leisure, maximum space for activities, surfing,
lifeguards, swimming and restaurants.
14% - Oceanside coast becomes a productive
landscape, with areas that focus on food and
energy production, restoring circular systems
and re-imagining relationship to the coast.
11% - Oceanside beach as a restoration zone,
maximum slopes for intertidal wetlands and
pools, limited access for humans, submerged
reefs and floating habitats.

SURVEY QUESTIONS
In this initial phase, SCAPE gathered reactions to each of their designs. Their concepts included the redesign
of a waterfront park with increased accessibility, called Dunepark. The SCAPE team also presented compo-
nents of their concept using stabilized cobble features, called Cobble Crests, along existing beach materi-
als, called a Cobble Spine. All three of their concepts scored similarly.

COMMUNITY QUOTES
“ The focus should be on multiple benefits - habitat
restoration, human activity, tourism, water sports,
education and address the evolving nature of the
shoreline - seasonally and over the years. This option
focuses too much on programmed elements - which
could come later. But the top priority is stabilization, seasonal variation and long term stability. I want to
know what the option determines the impacts are to
the communities down shore and their sand reten-
tion. ”

“ Love how creative these ideas are. All concepts appeal to both humans and nature. ”

COMMUNITY QUOTES
“ I enjoyed the way team acknowledged that it is a
changing coastline and the design would be flexible,
have potential funding sources, and focused on sand
retention. I would remind the team to keep Oceans-
ide’s surfing identity when refining their design. ”
Deltares & MVRDV presented three distinct approaches: an artificial headland/peninsula feature, a recreation fo- cused offshore breakwater, and a multi-purpose archipelago system. The community was presented with a spec- trum of options for programming these concepts that could be refined based on the desired use and aesthetic.

SCAPE focused on leveraging natural materials such as cobble in different forms, dunes, and nearshore reefs.

They framed each element as a part of a toolkit that can be integrated to fit the desires of Oceanside. _ _
Attachment C
9 General Survey Questions
Is there anything in particular you would like to see at upcoming Public Workshops that would help you con-
tribute to the RE:BEACH competition process?
• Examples of where these types of ideas and
concepts have been done on the West Coast.
• Timeline & cost analysis
• Potential siting and locations of pilot projects
• Understanding of how feasible the ideas presented
are in construction, cost and timing
• Consideration for impacts to neighboring
communities and coastal cities
Are there elements missing from the designs or
concepts presented that you would like the teams to
consider?
• Habitat restoration and impacts to natural
ecosystems
• Impacts to neighboring cities
• Amenities that include space for pets and dogs
• Protect existing and potential to enhance surf
resources
• Include an understanding of sand bypass systems
and persistent beach nourishment
What three words best describe Oceanside’s coast to
you?
ICM

SURVEY QUESTIONS
Do you prefer a larger/emergent structure (visible off- shore at lower tides) in the sea or a series of non-visible (below the surface) offshore structures?

COMMUNITY QUOTES
“ ... I liked the approach of starting small and seeing how it works”
smaller,
non-visible
larger,
visible 65%
35%
visible/
emergent
non-visible/
submerged
ICM used their experience on Australia’s Gold Coast in their three-pronged approach of sediment supply, near- shore retention, and top of beach improvements. They presented two paths: a more natural looking concept with artificial headlands and an offshore reef, and a novel structure (such as a tombolo) being a more prominent feature added to the coast.
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Attachment C
10 Public Workshop Two
Summary

The second public workshop, held on T uesday, October 17, 2023, convened more than 220 members of the public at the Oceanside Museum of Art (OMA) for a round-robin format workshop. Each participant had the opportunity to rotate through all three-design teams’ proposed pilot projects and hear from the project team on the monitoring and adaptive management components that would complement implementing a design as well as an overview of the latest science on sediment transport in the region. The workshop was open to the public from 4pm—7pm PT and culminated in a brief report out from representatives of each design team discussing what they heard from their interactions with the public that day. Following the workshop, pre-recorded presentations and slides by each design team, and the project team were made available on the City of Oceanside’s Y ou T ube Channel and on the RE:BEACH website. A public feedback form was accessible during the workshop through November 30, 2023, to collect input directly from participants and the broader community. The feedback form was focused around user experience and perceptions of each pilot project.

Each of the three-designs teams’ concepts were considered for their amenities, design, and use. The purpose of these more tailored questions was to encourage the public to provide input on the user experience of each design, how it might impact their time spent on a beach and Oceanside’s coast and provide tangible programming feedback to the Design T eams, City of Oceanside and Jury around perceived community benefits.

Similar to the first public workshop, this summary is a synopsis of all feedback of public responses received from Workshop 2 as of November 17, 2023. While not every question or answer is included, the major themes and topics are representative of the feedback.

35% - 92054
15% - 9205713% - 92056
3% - 92008
11% - 92058
3% - 92084
20% - Other
Attendance
more than 220
attendees
Duration
4-7pm PT,
3 hours
Demographics
Amount of Responses:
187 + zip codes
Review:

T eam Slides
O
of
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/_
\
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Attachment C
11 Deltares + MVRDV

SURVEY QUESTIONS
What elements in the Deltares & MVRDV designs do
you want to see emphasized in a refined concept?
• Natural habitat restoration, including input from
local biologists and experts, natural features like
plants for shade along walkways, and inter-tidal
habitat benefits
• Increased beach width, including sandy beach area
• Space for both people and dogs to access the
ocean
• Safety and access, including safe swimming areas
for elderly and children, and parking
• Emphasis on surf resources
• Sand, including a clearer understanding of how
much sand will be retained, how wide of a beach will
be achieved if successful and how the beach will
interact with other natural features of the artificial
headland

What elements are missing from the Deltares &
MVRDV designs that you want to see added in a refined
concept?
• More open space, including a greater emphasis on
the beach

COMMUNITY QUOTES
“ Please make this space intentionally beneficial for
the environment. Plant butterfly habitats and native
plants. Have educational signs that explain what is
planted and why. Have the native people represented
and honored. ”
• Surf opportunities
• Visuals and descriptions of what the artificial head- land will look like from the water’s edge
• Adaptability and maintenance of the concept,
including long-term solutions to sand nourishment
and bypass
• Scalability of the concept over time
• Understanding of potential impacts to adjacent
beaches
• Demonstrate how the concept and its program-
ming will increase accessibility, including parking
• The use of natural elements for play and education
signs, native plant species to help educate the
community about the coastal ecosystems in San
Diego
• Adequate space for multiple uses including bikes,
walking paths, dog use areas, and various sports
Community feedback helped focus Deltares & MVRDV’s approach on an artificial headland/peninsula. Using this one main feature, two concepts were presented that illustrated the opportunities to have more natural elements on the peninsula or to provide more visitor serving amenities programmed onto the structures.

A coastal vision for Oceanside
Attachment C
12 SCAPE

SURVEY QUESTIONS
What elements of the SCAPE design do you want to see
emphasized in a refined concept?

• Consideration for impacts to ecology and surf
resources
• Expectations around cobble crests sand retention
and expansion of beach area
• Reference projects and sites demonstrating suc-
cess of concept
• Better understanding of how the cobble will hold
up against large surf and El Niño conditions
• Incorporating greater accessibility and safety for
all beach goers, including elderly, children, bikers
and pets
• More space for desired activities such as volley-
ball, jogging, dog park, etc

What elements are missing in the SCAPE design that
you want to see added in a refined concept?
• Resilient and adaptivity to sea level rise
• Scalability to other parts of Oceanside, particularly more eroded areas in South Oceanside
• Understanding of how cobbles might move and
shift over time
• Potential impacts to surf resources
• Anticipated sand rentention and beach width
• Explanation of the experience users will have
getting in and out of the water across and over a
cobble spine
• Explanation of other potential amenities, including
increased accessibility, parking, showers for surf-
ers, and benches for sunset
• Overall cost and timeline for this concept

COMMUNITY QUOTES
“ The design seems to have a decent balance between
the natural and built environment. Often designers
try to push as many amenities or “trophies” into a
design as possible, but a beach should just be so: a
beach. I appreciate the attempt to keep it as such.

Please work with regional biologists to consult on the
project. ”
SCAPE continued to pursue a layered approach that leveraged existing cobble resources and provided better de- tails on ways the design could provide stabilization to the cobble crests and cusps. Additionally, SCAPE highlight- ed the opportunity to realign aspects of existing park and strand space to provide a more connected dunepark feature.

Attachment C
13 ICM

SURVEY QUESTIONS
What elements in the ICM design do you want to see
emphasized in a refined concept?
• Potential impacts to surf resources
• Better description of access improvements includ-
ing parking
• Amount of beach width improvements and avail-
able space for recreational activities
• Reference projects and sites highlighting where
this concept has been successful
• Explanation of how the pilot could be scaled
throughout Oceanside
• Cost estimates of design and construction of pilot
project
• Ecological benefits and amenities associated with
this pilot concept
• Details on proposed materials and how they may
create potential habitat
• Design strategies to mitigate any potential nega-
tive impacts

What elements are missing in the ICM design that you
want to see addressed in a refined concept?
• Sand retention expectations with and without
regular nourishment
• Impact of structures on beachgoers and surfers,
including the potential for rip currents, swimming
hazards, diving, fishing and surfing impacts
• Details on the shape of the artificial reef and how
that intersects with sand retention and surf re-
sources
• Articulation of recreational and ecological benefits
of this design, including room to walk, space for
dogs, and a park

COMMUNITY QUOTES
“ Thank you for sharing proven solutions to Oceanside
and to helping the community understand that there
are concepts out in the world that are already working
to retain sand on our shore for beach goers to use and
enjoy for generations to come. ”
ICM incorporated the feedback from the first round of design by refining their concept towards a more natural looking submerged artificial reef with two headlands. This approach provides a ‘speed bump’ for sand allowing it to accumulate between the features and assist in restoring sandy beach area. ayl>nss PIERHAHEHT
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Attachment C
14 General Survey Questions
Respondents were asked to select up to 3 beach
amenities from a list of options that could be provided by the proposed design. The top 3 amenities desired
by the public were the same across all teams, demon-
strating a consistent desire from the Oceanside com-
munity. In no particular order, the top 3 responses are provided below.
• Beach Day
• Surfing
• W alking
Respondents were asked if there is anything in particu- lar you would like to see at upcoming Public Workshops
that would help you contribute to the RE:BEACH com-
petition process?
• Financing, including cost comparison
• Overall project timeline
• Impacts, including on marine ecosystems
• Inclusivity, including diversity of representation
and ease of hearing presentations / design teams
• Public Q+A with the Project T eam
• Proof of concept
• Consistent replenishment of our beaches through-
out the region, not just in Oceanside
• Hear from the Jury, including their deliberation
around each concept and a chosen ‘winner’
• Scalability of each concept
Respondents were asked what do you most look for
with access to a wider, dry-sand, beach?
• Nature and ecosystems, including native plant spe-
cies, clear paths for walking, and healthy habitats
• A wide beach, including space to spread out and
lessen crowds, room to walk, and dry-sand
• Surf resources
• Safe spaces and access, including bathrooms with
showers, parking, room to walk and recreate
• Recreation, including walking, sunbathing, playing
in sand, and other beach activities
• Resilience and protection, including from impacts of
sea level rise
• History, educational signage and interactive
learning, including acknowledgment of native
peoples

GENERAL QUOTES
“ I mostly look for a place to lay down my beach gear
for the day, that also has decent waves in front so
I can enjoy a sandy spot to play with my kids and
somewhere that I can paddle out and catch a few
waves with my husband. ”
“ Beach access (sand) at existing beach access
points. More sand means that I can walk to more
waves or take a long beach walk. More sand on the
beach likely means better sand bars for surfing. ”
“ An old fashioned day at the beach walking, swim-
ming, surfing with access by car not too far away
and free. ”

“ Sufficient tr ash bins, native plant species and edu- cational signage, and native people being honored. ”

“ The ability to lay out on the beach and have a nice
beach day. Also emphasis on some area where dogs
can play off leash. ”
Attachment C
15 Public Workshop Three
Summary

The third public workshop was held on Wednesday, December 13, 2023 at the Junior Seau Beach Community Center. Attendees saw presentations from each of the three Design T eams, detailing their final pilot project concepts. Following team presentations, the public was able to ask questions to teams in the form of a live question and answer panel. The workshop was open to the public from 4—7pm PT. A video recording of the presentations and slides are available on the City of Oceanside’s Y ou T ube channel and the RE:BEACH website (rebeach.org).

An online public feedback form was made available at the start of the workshop and remained open for 30-days.

The final public workshop was an opportunity to (1) learn about each Design T eams’ proposed pilot project concepts, (2) ask questions directly to the T eams and (3) gain insight into the RE:BEACH process; including how T eams incorporated previous public comments into their designs.

The online feedback form for the final workshop was focused on what the public wanted to see in expanded on for each design in the next phase of the project.

Additionally, the feedback form included questions on the RE:BEACH process overall, asking respondents to comment on ways they were or were not engaged with Oceanside’s Coastal Resilience Competition. The responses were made available to City Staff, who worked alongside RE:BEACH Jury to bring forward a single recommended pilot project, to City Council on January 31, 2023.

The summary below includes information from the in-person question and answer panel, as well as, the online feedback form.

Review:

T eam Slides
35% - 92054
15% - 9205713% - 92056
3% - 92008
11% - 92058
3% - 92084
20% - Other
Attendance
more than 150
attendees
Duration
4-7pm PT,
3 hours

10.5% - 92056

7.9% - 92057

18.4% -Other

63.2% - 92054
Demographics
Amount of Responses:
10 zip codes
O
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Attachment C
16 DEL TARES + MVRDV
The Dutch team’s “Green Dream Peninsula” design would pilot the use of a natural peninsula structure, construct- ed perpendicular from the existing coastline. A combination of existing materials and new boulders, this peninsu- la would extend out approximately 360 feet in length and 500 feet in descending width without obstructing ocean views. The boulders and other rocks would create a bulge in the shoreline to support sand retention while still allowing the flow of the creek. The space would create new space for increased recreation and opportunities for environmental enhancement.

SURVEY QUESTION
If Deltares & MVRDV’s design moves forward, what as-
pects would you like to see refined in the final engineer- ing design and environmental review phase?
From all responses, the following themes emerged:

• The public articulated some concerns over safety
of beach goers in the accessing ocean-facing,
saltwater pools and sustaining water quality with
an urban creek flowing out adjacent to the pool.
• The public had difficulty understanding the po-
tential scalability of this concept, as headlands
may need to take on different shapes at different
locations to retain sand and the overall size seems
marginal for the desired objective of maintaining a
sandy beach.
• The public expressed concerns over the placement
of the feature at Buccaneer Beach and the poten-
tial impacts to surf resources.

COMMUNITY QUOTES
“ L ove the headland design, but very large and too many design complexities that could be added after perfor-
mance is verified. Simplify it! Why only one headland?
Limits scope of beach restored. ”
“ F urther consideration of water quality at the outlet.

Love the integration of the natural and built environ-
ment here. ”
Attachment C
17 SCAPE
The SCAPE T eam’s “Dunepark/Hybrid Beach” design proposed the construction of perched sandy beach fronted by a system of cobble features and boulders. The cobble berm would undulate with horns or crests that would extend seaward from the primary cobble berm. The design consists of 3 small cobble crests and 4 large cobble crests. The design also consists of 4 nearshore reefs placed seaward of the crest in the inter-tidal zone with the reefs being approximately 90ft long and 70ft wide. The shoreline concept could be combined with the repurposing of upland areas. DunePark is a concept that repurposes T yson Street Park into a beach and dune area with various recreational amenities (restrooms, dog park, playground). This concept involves the landward realignment of the South Strand roadway.

SURVEY QUESTION
If SCAPE’s design moves forward, what aspects would
you like to see refined in the final engineering design and environmental review phase?
From all responses, the following themes emerged:
• Dunepark proposed to create a more usable and
appropriate T yson Street Park, but retreat of the
Strand seems arduous.
• Overall, the public expressed a general concern
around the Hybrid Beach concept feasibility and its
ability to perform, as it had not been tested or tried
in any other location.
• Cobble is challenging and difficult to walk on,
making the usable beach space potentially less
accessible.

COMMUNITY QUOTES
“ My second favorite option. No examples of working in
other areas, but theoretically makes sense. Looks like
would be more limited in full scope for all of Oceanside beaches. ”
“ Not interested in more cobble to combat beach loss.

Seems like we will have continuous equipment redis-
tributing cobble after every large tide or storm. Not
proven. Like dune park, but that could be implement-
ed by parks and recreation”
Attachment C
18 ICM
T aking their success on Australia’s Gold Coast, ICM’s “Living Speedbumps” approach proposes to construct one multi-purpose offshore reef (either of rock or geotextile bags) and two artificial headlands. The submerged, offshore reef could vary in size based on material selected and would be placed roughly 900’ offshore at a depth of approximately 40’ . The artificial headlands would extend seaward 150’ and would be 150’ long across 1,700 linear feet of shoreline. The headlands and reefs would slow down wave dynamics allowing sand to gather between the features.

SURVEY QUESTION
If ICM’s design moves forward, what aspects would you
like to see refined in the final engineering design and environmental review phase?
From all responses, the following themes emerged:
• The ICM Living Speed Bumps concept overwhelm-
ingly received positive input for its professed
ability to retain sand and provide other recreation-
al benefits.
• ICM received an abundance of written comments
from the public, stating their concept was their
“favorite” or “best” option.
• The public viewed the potential to scale the ICM
high, with a whole shoreline solution seemingly
most feasible with this design.
• Recommendations included a need to consider
influences of the reef and headlands on sand bar
formation and function, and its influence on surf
resources.
• There was suggestion that as the design progress-
es there should emphasis and consideration of
how the structures they may impact the safety of
surfers and swimmers.
• The public expressed a desire to see more natural
design elements in the design of the headlands.

COMMUNITY QUOTES
“ Consider modifying the viewing platform design for
a more natural look. I appreciate the close attention
to surf potential and wide sandy beaches created for
recreation under this design. ”
“ I think that their experience on the Gold Coast shows they have refined the approach that has been proven
to work. I wish the sand bypass was still a part of. May- be a future consideration. ”
Attachment C
19 RE:BEACH Process & General Survey Questions

SURVEY QUESTIONS
Which public workshop did you attend?
(select up to three)
Did you follow RE:BEACH virtually on www.rebeach.org?
How did you get the majority of information about the
RE:BEACH Oceanside effort?
• The majority of respondents gained information
online, through the RE:BEACH website, social me-
dia and generally online.
• However, there were many different types of
responses that included ‘advocacy groups’ , ‘Save
Oceanside Sand’ , and the ‘City of Oceanside’s
Coastal Management Website’ .

RE:BEACH was a 8-month long process, from selecting
3 Design T eams to determining one winning concept.

While it was designed on purpose to be expedited
based on the current condition of the Oceanside shore-
line, we are seeking feedback on the length of this
design competition. On a scale of 1 (too slow) to 5 (too fast) how would you rate Oceanside’s Coastal Resil-
ience Competition?
Through the RE:BEACH process, do you feel you know
more (5), the same (3) or less (1) about Oceanside’s
coastal history and dynamics?
• 22% of respondents marked a ‘3’ , for moderate
learning through the RE:BEACH process
• No respondents marked a ‘1’ or ‘2’ to designate
they did not learn something through the process
53% 60% 65%
10%
attended
workshop one
attended
workshop two
attended
workshop three
viewed
workshops online
73%
16%10%
thought the process
scored a ‘3’ , a moderate
pace of activities and
progress
thought the process
scored a ‘4’ or ‘5’ ,
slightly too fast a pace
of activities and
progress
thought the process
scored a ‘1’ or ‘2’ , slow
pace of activities and
progres
marked a ‘4’ or ‘5’ , stating
that they now know more
about Oceanside’s coastal
history and dynamics
through the RE:BEACH
process
78%
11% did not follow along on the
RE:BEACH website
89%
of respondents followed
RE:BEACH on the project
website
32% Other
(advocacy groups,
word of mouth, other)
34%
18%16%
32%
socialonline
RE:BEACH
website
45 Attachment C
20 RE:BEACH aimed to prepare the City of Oceanside for
adaptive coastal management of a pilot project for
near-term resilience, while considering longer-term
coastal management needs to ensure access to
Oceanside’s beloved beaches well into the future.

Keeping this in-mind, do you feel the pilot projects
address near-term solutions while considering lon-
ger-term management needs.
• 6% of respondents marked ‘no’
If you feel one design in particular stands out as
upholding this criteria, rate that proposed design.• 3% marked SCAPE’s design as best meeting the criteria
• 3% marked Deltares + MVRDV’s design as best
meeting the criteria
Through the RE:BEACH process, do you feel you know
more (5), the same (3) or less (1) about Oceanside’s
sediment transport dynamics within the region?
The Design T eams demonstrate how each pilot might
scale throughout Oceanside, how clearly do you under-
stand the potential scalability of the pilot project?
• This is the response we would anticipate given the
status of each of the T eams’ designs and the work
in the next phase to clearly define a site for the
pilot and scalability.

When considering the three Design T eam concepts,
has RE:BEACH resulted in novel and innovative sand
retention pilot projects for Oceanside?
• Of the submitted responses, there was not a
single respondent who marked ‘no’ , rather several
respondents marked with additional comments on
the importance of innovation, novelty, and which
team they preferred.
69% of respondents marked
‘yes’
marked a ‘4’ or ‘5’
to designate ‘more’
knowledge was gained
about Oceanside’s
sediment transport through
the RE:BEACH process.
marked ‘3’
for ‘the same’
amount of knowledge
about Oceanside’s
sediment transport.
56%44%
marked ICM’s design as
best meeting the criteria
15%
marked a ‘4’
or ‘5’
designating that
they somewhat
clearly or clearly
understand the
scalability of the
pilot.
marked a ‘2’
or ‘3’
designating that
they have some
knowledge but need
more to understand
the scalability of the
pilots.
47% 43%
of respondents indicated that
RE:BEACH resulted in novel
and innovative solutions for
Oceanside’s coast
85%
Attachment C
21 Each team was provided with opportunities to interact face-to-face with the public at workshops, all submit-
ted public feedback, and had reviews with the City and
Project T eams. How well did you feel teams incorporat- ed public feedback into the updated designs?
• No participant marked a ‘1’or ‘did not’ capture
public feedback.

We want your feedback to determine how you’ll use the
restored beach area. From the list of amenities below,
which are most important to you? (select up to 3)
Across all 3-surveys, we asked respondents to rank
beach amenities most important to them. The results
from the final survey are below and reflect what we
have heard throughout the RE:BEACH Process.

Do you have any feedback for the City of Oceanside on
the experience and overall process of RE:BEACH?
“ W ell done. Only issue not addressed was the source
of funding and federal government commitment to
resolve liability for harbor construction. ”
“ Great job working through this entire process! I know it was a lot and it moved fast. We are very excited for the next steps. ”
“ The City did an excellent job! I’m not sure how it could be done better. I hope that we can get the winning
proposal permitted, funded and built!”
“ Amazing process! K eep the communication open and
flowing! Use the selected design to address our most
devastated sections of beach…SOUTH!!!! Let’s go with
the pilot and a plan for the entire Oceanside coast-
line!!”
“ Great concept to have multiple teams submit their de- signs. ICM has the best proven concept. It will actually allow a sandy beach with a natural look. ”
“ Many thanks to Jayme! Also thanks to City Council
members for helping to advance this crucial project
and to keep the public engaged. ”
62%
38%
marked a ‘4’ or ‘5’
to designate that they believe
RE:BEACH did a somewhat good or
good job capturing public feedback
throughout the process.
marked a ‘2’ or ‘3’
for somewhat or moderate capturing
of public feedback into the RE:BEACH
designs.
76%
57%
51%
41%
32%
32%
30%
24%
19%
8%
W alking
Beach Day
Surfing
Swimming
W alking Dog / Pets
W atching the Sunset
Playing in the Sand
Sunbathing
Tidepooling
Fishing
Attachment C

*indicates jurors whose role is advisory and non-voting, their ideas, input and role is purely their own expertise and does not represent the opinion of the various organizations they represent professionally.

Jury Deliberation Summary Report
12/14/2023, Mission Pacific Hotel, 8am - 5pm
Participants
Jurors:
• Chris Abad—Surf Resource Preservation—Director, Oceanside Boardriders Club. • Bob Ashton—Community Representative & Coastal Advocate—President/CEO, Save Oceanside Sand (SOS).
• Scott Ashton—Community Representative—Chief Executive Officer, Oceanside Chamber of Commerce.
• Dr. Curt Busk—Community Representative & Coastal Advocate—President, Buena Vista Audubon.*
• Megan Cooper—Coastal Grant Funding Expert—Deputy Regional Manager, California State Coastal Conservancy.*
• Dr. Lesley Ewing PE—Coastal Management Expert—Former Sr. Coastal Engineer, California Coastal Commission.
• Karen Green—Nearshore Marine Expert—Division Manager, Marine and Aquatic Ecosystem Resources, Tierra Data, Inc.
• Councilmember Joy Lyndes—Coastal City Representative—Encinitas City Council. • Dr. Dan Pondella—Nearshore Marine Expert —Professor, Biology; Director, Vantuna Research Group, Occidental College.
• Ernie Prieto III—Community Representative—Local Business Owner (Ocean Sea Charter), Boat Captain and sitting member of City of Oceanside’s Harbor and Beaches Committee. • Mitch Silverstein—Coastal Advocate—Surfrider Foundation San Diego Chapter.* • Councilmember Dwight Worden—Coastal City Representative—Del Mar City Council, Chair of SANDAG Shoreline Preservation Working Group.

Absent jurors:

Note: Charles Lester and Jeremy Smith, while they were unable to fully participate, provided written comments in advance as an input into the deliberation process. • Dr. Arye Janoff—Coastal Management Expert—Coastal Geomorphologist, Planner & Manager with a U.S. Federal Agency.*
• Dr. Charles Lester—Permitting Viability Expert—Director, Ocean and Coastal Policy Center, Marine Science Institute, UC Santa Barbara.
• Jeremy Smith PE —Coastal Management Expert—Coastal Engineer, California Coastal Commission.*

Project Team members in attendance: Jayme Timberlake (City of Oceanside), Brian Leslie (GHD), Nick Sadrpour (GHD), Sam Carter (RCC), Alex Klein (RCC), and Maranda Ngue (RCC)

Design Teams (present only during their time slot):

Deltares/MVRDV: Fokke Moerel, Maria Stamati, and Kees Nederhoff SCAPE and ESA: Gena Morgis, Pippa Brashear, and James Jackson ICM: Aaron Salyer and Sam King
_ _ _ _
B
_
Attachment C

2 Description of process
The Jury for the RE:BEACH Oceanside Coastal Resilience Competition was selected by the City of Oceanside and announced in May, 2023. The Jury represents a range of expertise, from local and community leaders, downcoast regional neighbors, Non-Governmental Organizations, regulatory and funding agencies, and scientific experts. Throughout the three design rounds of the RE:BEACH competition, jurors were invited to participate in the Public Workshops, were regularly briefed by the Project Team on the designs as they evolved with public input, and provided review of public input— including input received during the final public workshop on December 13, 2023.

On December 13, 2023, Design Teams made their final presentations during the third Public Workshop at Junior Seau Beach Community Center in Oceanside. The following day, the Jury met to hear directly from the teams and deliberate about their proposed concepts to the City. At this meeting, the morning was dedicated to one-hour interviews with each of the three Design Teams. In these sessions, Teams were able to present conceptual and technical information about their designs, and respond directly to Jury members’ questions. The afternoon was dedicated to discussion between the Jurors, with assistance from the Project Team, about each design. Teams were available to remotely answer questions that emerged from the discussions. Every Juror was asked to comment on each design, and to make any recommendations on how the designs might be adapted or improved. Following over two hours of discussion as a full jury, the voting members of the jury held their first vote. Jurors could cast one of three voting options for each team:
“Support,” “Support with reservations,” or “Do Not Support.” Jurors could also provide comments on their ballot. This voting mechanism allowed jurors to support more than one project, and it captured the nuance of their different perspectives. Following the first vote, jurors then continued to deliberate and ultimately arrived on a final recommendation with unanimous support.

The Jury serves as a third-party reviewer for the City of Oceanside to guide its decision-making. The Project Team (including GHD, Inc. and Resilient Cities Catalyst) prepared this summary report for the City as a follow up to the jury deliberations to 1) document the spirit of jury discussion, 2) detail the recommendations offered by the jury members on each of the designs, 3) portray the winning design team and concept and the justification for that selection, and 4) showcase the recommendations provided by the jury to the City on a path forward with the winning design concept.

On January 31, 2024, City staff will present the winning design for the Oceanside City Council to adopt, allowing 1 pilot project to move into engineering design and permitting. In addition to the Jury’s recommendation, City staff will consider Project and City Team recommendations on how to implement the proposed design recommendations, as well as, public feedback on the designs, collected through mid-January.

RE:BEACH Jury Final Recommendation
The Jury unanimously supports with some modifications the International Coastal Management (ICM) concept design, “The Living Speedbumps.” This proposal includes the construction of two artificial headlands, as well as, the construction of an artificial reef, roughly 130,000-250,000 square feet, the exact size of the reef will be determined in the next phase of final engineering and permitting offshore between the two newly constructed headlands (). The headlands were designed to mirror the size of the existing headland functionality of the base of the Oceanside Pier. This new coastal infrastructure would be supported by initial onshore and nearshore (i.e. placement on the sandbar) nourishment and ongoing annual maintenance.

The core rationale for selecting the ICM proposal was the concept’s ability to meet the project goals and design criteria set forth in the design brief. The overarching goal of RE:BEACH is to “construct Attachment C

3 an innovative, multi-benefit, sand retention project on the City of Oceanside’s beaches that serves both local and regional benefits.” The ICM concept demonstrates a potential for positive impact in retaining sand. The ICM concept also demonstrates consideration for the five design criteria categories: Physical, Financial, Environmental, Social and Regional. Most notably, a clear consideration for potential neighboring-coast impacts (both North and South of Oceanside), the relevance of the ICM team’s experience in the Gold Coast of Australia, the use of proven technologies in the design, the opportunity to design and deploy a reef with the intent to provide multiple benefits (e.g. ecological and recreational), and the leveraging of existing infrastructure to extend its effectiveness.

The two key modifications to the winning design proposed by the Jury are:

• Refinement of the design of the artificial headlands and a thoughtful proposal for programming on top of the headland. Several jurors requested the use of materials that better complemented the natural space and a headland design that better fits Oceanside’s character. The finalization of the headland design needs to consider the opportunity for creating multiple-benefits. Walkability around the headlands at high tide may also be a concern during certain seasons or following large erosion (i.e. high wave) events.

• Strong consideration of the use of natural materials (i.e. quarry rock or another alternative to geotextile bags) for the artificial reef. Several jurors raised concerns and objections about the use of geotextile materials proposed by ICM for three reasons: increased maintenance cost to replace or repair geotextile bags, the introduction of non-natural and/or plastics into the water, and related public perception and permitting issues. o ICM responded to jury questions about the geotextile bag option, stating that the use of the geotextile bags versus rock allows the City to pilot the viability of an artificial reef to influence beach sand retention at a cheaper, up-front cost. o As the reef advances in design, the City should go further in exploring potential ecosystem and surf benefits that the reef could provide. The City should also be prepared to provide mitigation for habitat conversions (i.e. conversion from sandy subtidal habitat to artificial reef).

In addition, the Jury recommends that the City consider SCAPE’s Dune Park concept separate from the RE:BEACH process. The Jury believed that a Dune Park could provide an improvement over the current Tyson St. Park space.

Overview of Juror Voting
• In the first round of voting, 100% of jurors did not support the SCAPE proposal for a “Hybrid Beach” (see comments below).
• However, there was consensus that the Dune Park concept should be considered as a project for the City, separate from RE:BEACH.
• After voting and discussion, 100% of voters either “supported” or “supported with reservations” both the ICM and Deltares/MVRDV proposals. However, a majority of jurors had significant reservations about the Deltares/MVRDV proposal, and a majority of jurors supported ICM without reservations.
• After further deliberation, jurors were asked to rank their preference for ICM and Deltares/MVRDV. ICM was the first choice of 6 jurors, while Deltares/MVRDV was the first choice of 3 jurors. The jury unanimously agreed that ICM was its recommended concept and team and outlined clear modifications to explore in the next phase of work.

Attachment C

4 RE:BEACH Jury Feedback on Designs
The following is a summary of the deliberations and discussions of the jury members at the meeting on December 14, 2023. While feedback is unattributed to specific jury members, all jurors had an opportunity to review this report for accuracy before delivery to the City.

ICM
• Unanimous support for implementation, with some modifications and reservations • Overall, strong preference for a proposal that maximizes retained sand, usable beach, and is scaled appropriately for the current state of Oceanside’s coastline • Appreciated linking the local reference of the ‘headland’ at base of pier • Scalability of the design was easy to understand and apply across Oceanside • Rework design of headlands to entail a more natural integration along the coast, explore more nature-based strategies/materials, adjust the shape to mimic natural headlands found along the California coast, and fine tune expectations and approaches to backshore dune connectivity • Confidence in the experience of ICM team and in their capacity to execute their proposal, with the success of the Gold Coast providing precedent. However, differences in wave climate between the Gold Coast and Oceanside raised potential concerns with suggestion for additional modeling to confirm design estimates relative to sand retention • The creation of an artificial reef, focused on sand retention, provides an opportunity to pilot a new solution for California, which could be applicable to many communities • Expectations around increased surf opportunities with the artificial reef need to be managed since improving surf resource is not a main objective of the artificial reef • Project designed to slow, but not stop, sand movement through the littoral cell upcoast and downcoast gives recognition to regional needs
• Integrated onshore and offshore combination of elements designed to work together to restore natural conditions
• Post-construction modifications or adaptations to the reef will be difficult to implement so design options should be carefully modeled with this in mind Deltares/MVRDV
• Unanimous support for implementation, with significant reservations • Appreciation for nature-based connection to Loma Alta watershed and creation of aesthetic headland that mimics natural conditions. However, the design ultimately functions similar to traditional shore perpendicular coastal engineering structures • Jury overall felt the performance estimated by the team was likely exaggerated and actual benefits of only one proposed peninsula would be too minor given the effort required to implement. Team could have proposed two peninsulas, as a part of a pilot program, to assist with meeting the scale of challenge that Oceanside currently faces, while still remaining within budget
• Concern about inlet stability and water quality if located at Loma Alta creek and refinement on hydrodynamics would be necessary to ensure proper flushing and connectivity • Swimming tidal pool feature, while intriguing, was not supported by the Jury for cost/benefit and public health and safety concerns
Attachment C

5 • Uncertainty on where sand will accrete (north or south) of feature, and to what extent it will be able to retain sand, and a lack of confidence that sand retention will occur south of the feature • Potential flanking impacts north or south of structure; there will be challenges with tying the structure into private revetment at base of feature
SCAPE
• Significant desire to see Dune Park component implemented through separate process, potentially led by City Parks and Recreation department • Hybrid Beach concept was judged to be infeasible
• Uncertainty of sand accretion and structural integrity of system • Likely would require more frequent and costly maintenance than anticipated by the team • Was seen to provide the lowest potential for retention and accretion of sand • Innovative and interesting design, and repurposing cobble could be beneficial for many locations, but ultimately as an untested solution using cobble stabilized by boulders was seen as too risky with too little potential positive impact, especially as a potential pilot at one of the City’s most popular beaches
• Perception of adding cobble to shoreline can harm overall project objectives. • Vertical access down cobble berm face and perched beach represents changed beach user experience (users are elevated above foreshore)
• Cobble sourcing and beach matching challenges
• Concern that the combination of cobble fingers and reefs could set up local rip currents Overall Next Steps

• The winning concept is a major milestone for the overall project • This selection of a winning design is part of a larger process that will continue to require active and transparent public participation amongst the local Oceanside community and greater San Diego coastal region. All opportunities pursued under RE:BEACH should leverage and intersect with ongoing efforts at the regional level, including potential inclusion as the pilot project identified as part of RBSP III that is currently in the early stages of planning • With a concept selected, additional analysis on the ICM design, size/shape of reef and headlands, anticipated sediment transport mechanics, and integration of features with existing management practices is planned. GHD in concert with ICM shall work towards developing a robust monitoring and adaptive management program that identifies specific metrics and key strategies to reduce and mitigate any potential impacts. • Further consideration for the location and site of the pilot is required to generate the greatest public benefit
• Mitigation will be required for any significant impacts to habitat and/or beach conditions. • Transparency and public engagement, including neighboring cities, is important throughout the next steps.

Attachment C
Attachment C
CONCEPT DESIGN I DECEMBER 2023
Attachment C

OCEANSIDE TODAY OCEANSIDE FUTURE
✓ Creat a Healthy Beach Profile ("Living Shoreline")
✓ • a Living Shoreline
(for an extended timeframe with living 'speed bumps')

SAND BAR

BURIED ROCK WALL
_w r
Attachment C

PROPOSED 'SPEED BUMPS' (TOP & BOTTOM OF BEACH) SCHEMATIC CONCEPTS •
Living Headland & Low Permeable Berm
• Based on existing pier headland scale & permeable extension into surf zone (piles) • Eco-Engineered Reef (Submerged)
• Based on proven Gold Coast examples (20 years+ in similar conditions) • Stabilizes top of beach to allow dune development • Improves sandbar retention & reduces beach erosion • Allows low tide beach walking around the headland - local cobble fill used • Ecological and surf benefits -1L
Attachment C
Attachment C
Attachment C
"LIVING SPEED BUMPS" & COASTAL RESILIENCE
Slow down natural processes to retain sand longer. Not 'trap' sand.

OCEANSIDE 'REEF CITY'
Adaptability & Future Considerations
Top of beach - stabilize
• Headlands stabilize top of beach
• Allows dunes to develop
• Dunes retain sand for sea level rise
buffer
• Headlands and dunes provide
green corridors along beachfront
for ecological stimulation
Bottom of beach - stabilize
• Reef stabilizes bottom of beach
• Helps to retain sandbars
• Sand bars and reef provide buff er from
increasing sea level rise/climate
change storms
• Reef increases offshore biodiversity
(local and regional)
Keep building on decades of real-world,
coastal resilience development for a
greener, sandier Oceanside into the future
d Shoreline Ownershi /Control
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v, Carlsbad Shoreline Ownership/Control Map
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0210-0020 -0016
7/25/2014
'. 7/28/1993
:i..,.;_ .i Offer Accepted
~-,_ .:. City of Carlsbad
Brown, Robert & Lillia
0210-0031-0800 2/15/1989
11/6/1986
""- City of Carlsbad
Goetz, Dean
Carlsbad Blvd
0210-0120-0032,
0210-0120-0033,
0210-0120 -0034
6/30/2000
Expiration : 6/30/2021
Atta
Q Carlsbad Shoreline Ownership/Control Map
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J.\Requ.lhMarct,D 1S'P•ks\RITM0020!166_21\Beacll P,ese .... ation Convriui a, Series 1b17 .m1td Attachment E
SAND R E PL E NISHMEN T PLANS - January 2024

OCEANSIDE HARBOR
• Owned/managed by City of Oceanside
► POC: Jayme Timberlake, Coastal Zone Administrator
o [email protected] , 760-435-3073
Anticipated dredging schedule is as follows:
□ Mid -April to Mid-May 2024 (annually}
❖ Previous project -April 2023
( city of
Carlsbad
Attachment E
SAND REPLENISHMENT PLANS - January 2024

AGUA HEDIONDA LAGOON
Owned by NRG/Dredged by Poseidon Resources
► POC: Michele Peters, Technical and Compliance Manager o [email protected] , 702-606-8742
• Anticipated dredging schedule is as follows:
□ Fall 2024/Early Spring 2025 (based on field observations) ❖ Previous Project - Winter 2021
❖ 3-4 year cycle projection
{ city of
Carlsbad
Attachment E
SAND R E PLENISHMENT PLANS - Janua r y 2024

BATIQUITOS LAGOON
• Owned/managed by CA Dept. of Fish & Wildlife
► POC: Gabriel Penaflo~ Environmental Scientist
o qabriel.penaf/[email protected] .qov, 858-636-3160
Anticipated dredging schedule is as follows:
□ Fall 2024/Early Spring 2025 (every 4-5 yrs.}
❖ Previous project - Winter 2020
('city of
Carlsbad
J
Attachment E
SAND REPL E NISHMENT PLANS - January 2024

STATE BEACHES IN CARLSBAD
• Owned/managed by CA Dept. of Parks & Recreation
► POC: Lisa Tomas, Acting Superintendentn
o [email protected] , 760-720-7001
• Anticipated dredging permit issuance schedule is as follows:
□ Fall 2024 for Agua Hedionda Lagoon Project
□ Fall 2024 for Batiquitos Lagoon Project
□ Fall 2025 for Regional Beach Sand Project Ill
❖ N/A for Oceanside Harbor Project
{"city of
Carlsbad
Attachment E
SAND REPL ENISHMENT PLANS - January 2 0 24
REGIONAL BEACH SAND PROJECT Ill
• Managed by SAN DAG; 5-7 cities typ . participate
► POC: Courtney Pesce, Associate Regional Planner
o [email protected] , 619-699-6942
• Anticipated dredging schedule is as follows :
□ Funding - Fall 2023-25
□ Permitting - 2025/2026
□ Mobi lizing - 2027
❖ Previous Project - 2012
( City of
Carlsbad

Carlsbad City CouncilFebruary 2, 2024

Carlsbad City Council
February 2, 2024