Help with your seawall project·Upper Keys
Key Largo & the Upper Keys

A living edge,
where the site allows.

By Upper Keys SeawallUpdated: 2026-10-26

Nature-based shoreline work starts with the existing habitat and erosion problem. A planting plan, a rock edge and a vertical wall are not interchangeable.

About 3 min readOfficial sources linked below

Is the site a candidate?

DEP’s living-shoreline resources emphasize wave energy, sediment processes and site planning. Ask a qualified designer to evaluate exposure, available space, vegetation, navigation and neighboring structures. Compare feasible alternatives before assuming a conventional wall is the only option.

Living shoreline planning and permits

What makes a useful first site brief?

Give the designer evidence about the site
QuestionUseful material
Where is erosion occurring?
Dated photos showing the same edge and a sketch of the affected reach.
What is already there?
Existing vegetation, rock, vertical walls, drains and dock connections.
What needs to remain usable?
Boat access, walkways, neighboring connections and maintenance routes.
Where can work happen?
Property survey, access permissions and proposed staging limits.

Describe the outcome you need, such as reducing loss of ground while retaining boat access. Let the designer compare feasible treatments against that outcome rather than starting with a preferred product.

Begin with what is already there

  • Map mangroves, seagrass and other resources around the proposed work.
  • Identify the existing permitted shoreline configuration.
  • Show construction access and any temporary disturbance.
  • Consider how the design meets adjoining walls or docks.

NOAA’s sanctuary review can apply to riprap placement and other nearshore construction. A nature-based description does not by itself establish an exemption.

Florida Keys sanctuary nearshore construction

Protect the access route as well as the finished edge

DEP says trimming exemptions do not generally allow mangrove removal. Where roots or branches interfere with an existing seawall or dock, send the district photographs and the proposed scope before relying on a maintenance-related exemption.

DEP mangrove questions

Islamorada: check rock and turtle conditions

The Village says riprap voids must remain open and concrete must not be added. Its planning resources also identify turtle-nesting considerations around Upper and Lower Matecumbe. Ask the Village Biologist to confirm the parcel’s habitat and construction constraints.

Islamorada riprap maintenance guidance · Islamorada sea turtle shoreline guidance

Ask how success will be measured

  • What vegetation, rock or other elements are included?
  • Who checks establishment, erosion and displaced material?
  • Which maintenance actions are allowed under the authorization?
  • What conditions would trigger a design review?
  • Who keeps the monitoring and permit records?

Compare these obligations with other shoreline stabilization options and include them in the budget.

How should you compare the upkeep?

Establishment work

Ask who checks new planting or installed materials, what observations will be recorded, and how missing or displaced elements are addressed under the approved plan.

Later performance

Ask which changes require professional review: renewed erosion, altered drainage, damaged transitions or unexpected loss of vegetation. Agree on who receives the observations.

Request those obligations in the proposal alongside installation. A lower initial price may leave more future work with the owner. Compare the whole care plan with a rock or structural alternative.

Show sourcesHide sources
  1. Living shoreline planning and permitsSource reviewed 2026-10-25
  2. Florida Keys sanctuary nearshore constructionSource reviewed 2026-10-25
  3. DEP mangrove questionsSource reviewed 2026-10-25
  4. Islamorada riprap maintenance guidanceSource reviewed 2026-10-25

Let’s move your project forward.

Tell us where your property is and what needs attention.

Start with what you know. We’ll help you work out the next step.