Flood Information

Be Prepared for Hurricane Season

Download a copy of the Martin County Road to Readiness (PDF).

Find out more about Road Readiness by watching the Road to Readiness Video on the Martin County Hurricane Preparedness Webpage.

Emergency Alerts: AlertMartin is a free service provided by Martin County that allows Emergency Management, Fire Rescue, Utilities, Martin County Sheriff's Office, and municipal partners to send important public safety messages, evacuation notices, and other timely warnings by phone, text and/or email.

To sign up, simply text the word ALERTMARTIN to 888777 or by going to ALERTMARTIN.

Protect Your Property From Hazard

Find out how to protect your home from flooding. Download the FEMA Homeowner's Guide to Retrofitting (PDF).

Build Responsibly

Read up on the floodplain regulations before beginning a project.

Know the regulations for development in the floodplain.

All development of, or improvement to a property in the floodplain requires permits. Contact the Building Official at Town Hall at 772-545-0150 prior to any construction activities to ensure compliance with floodplain development requirements.

The Building Department is located at 2 Bridge Road, Hobe Sound, FL

To report development in the floodplain being conducted without the benefit of a permit, contact the Building Official at Town Hall at 772-545-0150

Download a copy of the FEMA publication: Answers to Questions About Substantially Improved/Substantially Damaged Buildings (PDF).

Substantial improvement

Substantial improvement, as defined in 44 CFR § 59.1, means any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50% of the market value of the structure before the start of construction of the improvement. The term includes structures that have incurred "substantial damage," regardless of the cause of damage and regardless of the cost of repair work actually performed. However, the term does not include:

Any project for improvement of a structure to correct existing violations of State or local health, sanitary, or safety code specifications that have been identified by the local code enforcement official, and that are the minimum necessary to ensure safe living conditions, or

Any alteration of a "historic structure," provided that the alteration will not preclude the structure's continued designation as a "historic structure."

Substantial Damage

Substantial damage, as defined in 44 CFR § 59.1, means "damage of any origin sustained by a structure whereby the cost of restoring the structure to its before-damaged condition would equal or exceed 50% of the market value of the structure before the damage occurred." Most damage occurs during a single and sudden event, such as a fire, wind storm, lightning strike, falling tree, tornado, earthquake, flood, or natural gas explosion. Damage may also be unrelated to a specific event, such as soil settlement, exposure to the elements, termite infestation, vandalism, deterioration over time, and other causes.

Protect Natural Floodplain Functions

Martin County Comprehensive Emergency Management Plan (CEMP)

All counties in the State of Florida are mandated by Florida Statute to develop and maintain a Comprehensive Emergency Management Plan for their county. Martin County's plan includes elements addressing basic planning, recovery and mitigation planning, hazard-specific appendices, and 19 emergency support functional annexes.

The CEMP is the County's book and tool for preparedness, response, recovery and mitigation for any disasters which Martin County is vulnerable. The County CEMP identifies the "who, what, when, where, and how" Martin County will activate and respond to a disaster in Martin County.

The County Emergency Management Agency is responsible to develop and maintain the CEMP. It is required that it be updated and submitted to the State of Florida Division of Emergency Management every four years, or more often if significant changes are necessary.

View the Martin County CEMP.

Beach Protection District

Protect the beaches and natural areas on Jupiter Island:

  • Driving on the beach is prohibited.
  • Do not walk on the dunes, they reduce the impact of flooding.
  • Pick up your trash! Littering on the beach is unlawful.

Download the Town of Jupiter Island Beach Protection District - House Bill 709 (PDF).

View the Coastal Management Element of the Jupiter Island Comprehensive Plan.

The purpose of the Coastal Management Element is to plan for and where appropriate, restrict development activities where such activities would damage or destroy coastal resources, protect human life, and limit public expenditure in areas that are subject to destruction by natural disasters or sea level rise.

View the Coastal and Wetlands Management Article.

No development permit shall be issued unless the proposed development meets the objectives and policies of the Coastal Zone Element and the Conservation Element of the Comprehensive Plan.

Prior to the issuance of any development permit, the administrative official shall make a determination that the proposed development is consistent with the objectives and policies of the Coastal Zone Element and the Conservation Element of the Comprehensive Plan.

Conservation Areas are indicated and designated on the Jupiter Island Future Land Use Map (PDF).