Captiva Resident Story Map

Bayside Adaptation Plan

Welcome

The Captiva Bayside Adaptation Plan aims to enhance the resilience of Captiva Island against flooding and sea level rise. This project, informed by community input and expert analysis, will develop actionable strategies to protect critical infrastructure and shorelines. By combining nature-based solutions and engineering innovations, we strive to safeguard Captiva’s unique environment and ensure its sustainability for future generations.

Florida's coastline faces significant challenges due to rising sea levels and increasing storm intensity. Statewide initiatives underscore the necessity for localized adaptation plans to address these pressing issues. For the barrier island of Captiva Island, adaptation planning is crucial as it is particularly vulnerable to coastal flooding, a situation expected to worsen with future climate projections. Captiva is characterized by its unique natural landscapes and close-knit community. The local context includes a mix of public and private properties, diverse ecosystems, and significant tourism-driven economic activity, which together requires a tailored approach to adaptation that considers the ecological, economic, and social dimensions of resilience.

The strategies and recommendations outlined in this StoryMap and the Captiva Bayside Adaptation Plan are proposed as optional adaptation measures for consideration by property owners and the community. These strategies are designed to address the unique vulnerabilities faced by Captiva Island, but they are not mandatory. Instead, CEPD offers these recommendations to encourage voluntary adaptation efforts that may enhance resilience to coastal hazards and environmental changes.


Project Conceptual Designs

We’re excited to share the conceptual designs for the Captiva Bayside Adaptation Plan! These initial design concepts showcase potential projects aimed at enhancing Captiva Island’s resilience to climate impacts. We invite you to take a closer look at each design to understand how these proposed solutions could shape the island's future. To explore the designs, please scroll through each project site section. You’ll find both aerial views, which provide a bird’s-eye look at the mapped concepts, and cross-section views that offer a ground-level perspective on how the adaptations would appear side by side. Click through the arrows to view additional photos and design details for each site. After reviewing each design, we invite you to complete the feedback form at the end. These designs showcase a selection of proposed projects aimed at enhancing Captiva Island’s resilience. The designs included here represent just a portion of the total designs we have prepared; to see the complete set, please click through links in the feedback form.

Click Through the Arrows to View Site Design Photos

Central Captiva with High Priority Parcels

The Central Captiva area, identified as having several high priority parcels, includes comprehensive design concepts that cover the entire central region. Within this broader area, a few individual high-priority parcels were selected for more detailed site-specific designs. This approach addresses adaptation needs at both a large scale and a more focused, parcel-specific level.

Pictured: Site 3 Bird's Eye View

Central Captiva with High Priority Parcels

Site 4 Bird's Eye View

Central Captiva with High Priority Parcels

16737 Captiva Drive Bird's Eye View

Central Captiva with High Priority Parcels

16737 Captiva Drive Cross Section

Central Captiva with High Priority Parcels

16737 Captiva Drive Cross Section

Central Captiva with High Priority Parcels

17081 Captiva Drive Bird's Eye View

Central Captiva with High Priority Parcels

17081 Captiva Drive

Central Captiva with High Priority Parcels

17081 Captiva Drive Cross Section

Central Captiva with High Priority Parcels

South Seas Plantation Road

Central Captiva with High Priority Parcels

Central Captiva with High Priority Parcels

The Andy Rose Kayak Launch

Central Captiva with High Priority Parcels

15161 Captiva Drive Section

Central Captiva with High Priority Parcels

15183 Captiva Drive Section

Site Design Feedback

Your insights are crucial to ensuring these projects meet the unique needs and priorities of the Captiva Island community. In this survey, we’re asking for your thoughts on the specific design features, including which elements you feel will be most effective, any concerns you might have, and any additional ideas you believe should be considered. Your input directly influences how these designs are refined and prioritized, helping us create a future for Captiva Island that truly reflects its community values. Thank you for being an essential part of this planning process!

To navigate through the form and site designs, scroll through each section and press “Next” at the bottom of the page to proceed to the following design, or you can click the box arrow icon to open the form in a separate window for a larger view.

Captiva Adaptation Project Design Feedback


Strategy Options

In the near term, individual property owners should plan to adapt their shoreline to prevent impacts from existing and near future flooding from sea level rise, extreme storms, and tidal flooding. Strategy options to protect these shorelines are presented below based on dominant shoreline type. For properties with mixed shoreline types, it's best to use a combination of strategies tailored to each part.

As previously stated, these adaptation strategies are not mandatory.  

Here are examples of shoreline strategies:

  • Riprap/Toe Protection
  • Mangrove Planting
  • 3D Printed Concrete Blocks
  • Oyster Reef Bails
  • Living Seawall

(Left to Right) Mangrove planting ; Rip Rap; Oyster Reef Bails ; Living Seawall

Shoreline Types

Each property on Captiva Island's bayside has a main shoreline type that defines its key features. The main types are beach, mangroves, and seawalls. Some properties have combinations, like beach with mangroves or seawall with mangroves.

In the subsequent shoreline sections, you can visualize what strategies exist.

Captiva Bayside Island-Wide Shoreline Type Rendering

What shorelines exist on Captiva's Bayside?

Mangrove Dominant Shoreline

Mangrove shorelines, with dense trees in intertidal zones, stabilize coasts, reduce wave energy, trap sediments, and provide essential habitats for many species. 57% of Bayfront Shorelines are a Mangrove Dominant Shoreline Type.

Mangrove shorelines help to build and maintain land over time, however, small areas of mangroves have been lost due to construction activities.

Click the Button below to view where these shorelines exist on Captiva.

What strategies exist to prevent flooding?

Click the Mangrove Shoreline Strategy to view applicable solutions for the Mangrove Dominant Shoreline Type:

Seawall Dominant Shoreline

Seawall shorelines, making up 39% of all bayfront parcels, are characterized by constructed barriers that protect against coastal erosion and storm surges.

Seawalls are made of durable materials like concrete or stone, and they absorb and reflect wave energy to safeguard property and infrastructure. Seawalls require regular maintenance and can increase erosion.

Click the Button below to view where these shorelines exist on Captiva.

What strategies exist to prevent flooding?

Click the Seawall Shoreline Strategy to view applicable solutions for the Seawall Dominant Shoreline Type:

Beach Dominant Shoreline

Beach shorelines, making up 5% of bayfront parcels, are sandy areas shaped by wind, waves, and tides. They offer natural beauty, recreational opportunities, and enhance property values.

They act as buffers absorbing wave energy, but are susceptible to erosion and require regular maintenance and renourishment.

Click the Button below to view where these shorelines exist on Captiva.

What strategies exist to prevent flooding?

Click the Beach Shoreline Strategy to view applicable solutions for the Beach Dominant Shoreline Type:

What would a resilient Captiva look like in the future?

A future island-wide cohesive vision is essential to ensure Captiva remains dry and habitable, as NOAA's Sea Level Rise Viewer projects a 3.67 feet rise in sea level by 2100 under the Intermediate scenario. This level of sea level rise could inundate more than half of the island if no action is taken, highlighting the need for a forward-looking, multifaceted approach.

Increase elevation of island, elevate infrastructure, build forced drainage system to pump water, seagrass restoration.

Considerations:

  • Sea level at 3-5 feet NAVD by 2070-2100 or 9- 11 feet NAVD with 100-year surge
  • High tide reaches buildings by 2060
  • Major road seepage by 2070
  • Adaptation pace uncertain

I would like to participate in the adaptation process, how can I?

To participate in the Captiva Bayside Adaptation Plan, there are several ways you can contribute and make your voice heard:

  • First, provide your input and direction by participating in our survey. Your feedback is invaluable in shaping the adaptation strategies to ensure they meet the community's needs and expectations.
  • Review the design concepts of the Captiva Bayside Adaptation Plan and provide your feedback in the survey.

Recent surveys revealed residents favor a mix of nature-based solutions like mangrove restoration, grey infrastructure such as seawalls, and hybrid approaches. These strategies reduce flood risks, enhance natural beauty, and provide robust protection. Residents also emphasized elevating buildings, upgrading drainage systems, and community education through awareness campaigns and workshops. Cost and environmental impact are significant concerns, with residents keen on exploring funding opportunities and sustainable solutions. Participate in our ongoing survey to share your thoughts:

To participate in the Captiva Bayside Adaptation Plan, there are several ways you can contribute and make your voice heard.

Click on the survey on the right-hand side to begin filling it out!

Who can I contact? How can I stay engaged?

Contact Information

For more information or to get in touch with us, please visit the Captiva Erosion and Prevention District (CEPD) main page or email us at mycepd@mycepd.com

Stay Engaged!

As we update the project, we would appreciate having your feedback on new project designs and information.

Public Outreach Meeting

Next Hybrid Meeting

When: January 9, 2025, 1:00 PM - 2:30 PM EST

Where In Person Meeting Location

Captiva Civic Association, 11550 Chapin Lane, Captiva, Florida, 33924

   Online Zoom Meeting:

   Meeting ID: 930 5723 3453

   Passcode: 769688

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  One tap mobile

  +13052241968, 93057233453#, *769688# US

We value your input and encourage you to participate in our upcoming public outreach meetings.

Stay engaged and help shape the future of our community by joining these sessions. Your participation is crucial to the Bayside Adaptation Plan’s Success!

Captiva Bayside Island-Wide Shoreline Type Rendering