New Law Mandates Living Shorelines to Safeguard Indian River Lagoon

Opinion | TC Sentinel Editorial Board

In a legislative session that environmental advocates are calling an "almost total disaster," Tallahassee managed to do one thing that matters enormously to the Treasure Coast. Senate Bill 302, a coastal resiliency measure signed into law this year, requires the Florida Department of Environmental Protection to create formal guidelines for nature-based shoreline restoration — mangroves, seagrass beds, living shorelines, reef systems. For a region whose identity and economy are inseparable from the Indian River Lagoon and 72 miles of Atlantic coastline, this is not a small thing. It may be the most consequential piece of environmental legislation to touch our three counties in years.

We say this without naïveté. We have spent years watching "coastal resilience" serve as little more than a euphemism for expensive concrete infrastructure — seawalls and pumps that enrich government contractors while barely keeping pace with rising seas. The cynicism is earned. But SB 302 is different. It directs DEP to establish monitoring, inspection, and permitting criteria for nature-based projects: dune restoration, wetland recovery, seagrass replanting. It shifts the default from gray infrastructure to green.

Consider what that means here. A pilot project in Titusville, just north of our coverage area, plans to plant new seagrass beds and deploy approximately one million clams via drone to filter impurities from the water — a project designed specifically to help repair the Indian River Lagoon. That lagoon stretches 156 miles through all three of our counties. Its seagrass coverage has declined by roughly 58 percent since 2011, according to the St. Johns River Water Management District's most recent assessment. In Indian River County alone, manatee deaths linked to lagoon starvation events prompted emergency feeding stations in recent winters. The lagoon's crisis is not abstract. It is visible from the bridges we cross every morning.

SB 302's journey to passage is itself instructive. Sen. Ileana Garcia, the Miami Republican who sponsored the bill, first introduced a version in 2022 — months before Hurricane Ian killed roughly 150 people, most of them by water, not wind. That Category 4 storm dumped more than a foot of rain and drove seven-foot storm surges into communities like Fort Myers. It exposed, in the starkest terms, how poorly Florida has planned for its flat, low-lying geography.

Yet even after Ian, Garcia's bill stalled. The Environmental Defense Fund and the Surfrider Foundation spent three years in discussions with lawmakers, gradually expanding the bill from a narrow mangrove-planting measure into a comprehensive nature-based framework. "There has been an evolution on this," Dawn Shireeffs of the Environmental Defense Fund told advocates. What finally pushed it across was a late amendment blocking a controversial cruise ship terminal in an aquatic preserve — a provision that drew enough political energy to carry the entire bill through.

We acknowledge that some will view living shorelines with skepticism. Concrete is familiar. Engineers trust it. Homeowners want certainty that something solid stands between their property and the next hurricane. Those concerns deserve respect. But multiple studies have found that mangrove restoration is significantly cheaper than traditional concrete infrastructure, and natural systems have the added virtue of improving water quality rather than degrading it. For a region spending tens of millions on lagoon cleanup, that dual benefit matters.

The counterargument that nature-based solutions are untested also rings hollow when the tested alternative — rebuilding in the same vulnerable locations with the same materials — has failed repeatedly. After Ian, the Legislature actually ordered local governments to let developers rebuild in areas that had just been washed away. That is not resilience. That is repetition.

Here is what we are asking: The Indian River Lagoon Council, along with the county commissions of Martin, St. Lucie, and Indian River counties, should formally request that DEP prioritize the Treasure Coast in its first round of living shoreline permitting guidelines under SB 302. Our lagoon is among the most impaired water bodies in the state, and our coastline is among the most vulnerable. We should not wait for Tallahassee to remember we exist. The deadline for DEP to begin drafting those guidelines has not yet been made public; our local officials should press for clarity before the end of this calendar year.

One good bill does not redeem a session. But one good bill, applied aggressively at the local level, can change a coastline. Ours needs changing.

TC Sentinel contacted offices for Sen. Garcia and the Indian River Lagoon Council for comment prior to publication. Responses were not received by press time.

This article was generated with AI assistance using publicly available information. It was reviewed and approved by a human editor before publication. TC Sentinel uses AI writing tools in accordance with FTC guidelines.