Rice
Guest
These people want to use public money to protect private homes while covering Vero's lovely nearshore reefs. :dollar: This is somethign the dive community needs to stand together on.
Rice :1poke:
Guest columnist: Beach renourishment and Frances' lessons
By Jonathan Gorham
September 25, 2004
On Sept. 4 and 5, the county's beaches were subjected to a storm surge of 7-8 feet and almost 10 hours of continuous hurricane force winds. On Sept. 10, I set out on a beach damage survey of the entire county to get a preliminary look at erosion damage.
The picture was grim. Every area of beach in the county experienced severe erosion from Hurricane Frances. The primary dune, the feature that protects the barrier island from storm surge, had been overwashed in many places, and the dune itself had eroded back from 10 to more than 40 feet.
Advertisement
There was one notable exception: the Ambersand neighborhood, where the Sectors 1&2 beach renourishment project was built in 2003. At Ambersand, there was no dune overwash. There was no wave damage to upland structures. No dune retreat at all, not even a single foot.
Before the beach renourishment project, the Ambersand area had a very high potential for catastrophic storm damage. For example, it was the only area in the county where a Category 3 hurricane storm surge was predicted to overwash the entire island.
It was for that reason the county chose to build its first beach renourishment project there. The Sectors 1&2 project added sand to 2 1/2 miles of shoreline, creating a beach that was 50-60 feet wider and 6 feet higher in elevation than what had existed before.
This widened and elevated beach is intended to blunt the erosive power of a major storm event. The Sectors 1&2 project performed exactly as it was intended to in Hurricane Frances, protecting the upland area from potentially many millions of dollars in storm damage.
Other areas in the county were not so lucky, as anyone who has been to the beach recently can attest. Erosion of the dune and damage to upland structures was severe in the city of Vero Beach, where the dune retreated up to 40 feet or more, destroyed the roadway and parking along Conn Beach and threatened large buildings with imminent collapse.
Damage was also severe in the area of the south county between the Sandpointe subdivision and The Moorings. Several homes were destroyed or heavily damaged by wave attack; others had their foundations undermined and are threatened with collapse. The dune system in this area was severely compromised, leaving the entire upland area terribly vulnerable to damage from a subsequent storm.
The real tragedy is that this didn't have to happen. Both the above areas are included in beach sectors the county has been trying to get renourished since 1999, and as the Sectors 1&2 project demonstrated so well, a properly designed beach renourishment project works. It protects the dune and upland property from damage.
The proposed projects in the city and the south county, called Sector 5 and Sector 7 in the County Beach Preservation Plan, have been mired in permitting bureaucracy for years. If those projects had been in place, I have no doubt that the substantial damage could have been prevented.
A particularly cruel irony is that the major issue holding up permitting was the potential these projects would have for covering up some of the nearshore limestone reef with sand. But Frances, in eroding millions of cubic yards of sand from Indian River County beaches, has undoubtedly just buried more acres of nearshore limestone reef than a hundred years of beach renourishment projects.
The lessons of Frances are clear: Beach renourishment works. And while we cannot prevent hurricanes, we do have the power to limit the coastal damage they can inflict. We need to push more vigorously than ever to fully implement these projects, and we need to demand that the responsible regulatory agencies act as partners, not barriers.
JONATHAN GORHAM is coastal resource manager for Indian River County. He holds a doctorate in marine biology from Florida Tech and previously managed the sea turtle conservation program at the St. Lucie nuclear power plant. :1poke:
Rice :1poke:
Guest columnist: Beach renourishment and Frances' lessons
By Jonathan Gorham
September 25, 2004
On Sept. 4 and 5, the county's beaches were subjected to a storm surge of 7-8 feet and almost 10 hours of continuous hurricane force winds. On Sept. 10, I set out on a beach damage survey of the entire county to get a preliminary look at erosion damage.
The picture was grim. Every area of beach in the county experienced severe erosion from Hurricane Frances. The primary dune, the feature that protects the barrier island from storm surge, had been overwashed in many places, and the dune itself had eroded back from 10 to more than 40 feet.
Advertisement
There was one notable exception: the Ambersand neighborhood, where the Sectors 1&2 beach renourishment project was built in 2003. At Ambersand, there was no dune overwash. There was no wave damage to upland structures. No dune retreat at all, not even a single foot.
Before the beach renourishment project, the Ambersand area had a very high potential for catastrophic storm damage. For example, it was the only area in the county where a Category 3 hurricane storm surge was predicted to overwash the entire island.
It was for that reason the county chose to build its first beach renourishment project there. The Sectors 1&2 project added sand to 2 1/2 miles of shoreline, creating a beach that was 50-60 feet wider and 6 feet higher in elevation than what had existed before.
This widened and elevated beach is intended to blunt the erosive power of a major storm event. The Sectors 1&2 project performed exactly as it was intended to in Hurricane Frances, protecting the upland area from potentially many millions of dollars in storm damage.
Other areas in the county were not so lucky, as anyone who has been to the beach recently can attest. Erosion of the dune and damage to upland structures was severe in the city of Vero Beach, where the dune retreated up to 40 feet or more, destroyed the roadway and parking along Conn Beach and threatened large buildings with imminent collapse.
Damage was also severe in the area of the south county between the Sandpointe subdivision and The Moorings. Several homes were destroyed or heavily damaged by wave attack; others had their foundations undermined and are threatened with collapse. The dune system in this area was severely compromised, leaving the entire upland area terribly vulnerable to damage from a subsequent storm.
The real tragedy is that this didn't have to happen. Both the above areas are included in beach sectors the county has been trying to get renourished since 1999, and as the Sectors 1&2 project demonstrated so well, a properly designed beach renourishment project works. It protects the dune and upland property from damage.
The proposed projects in the city and the south county, called Sector 5 and Sector 7 in the County Beach Preservation Plan, have been mired in permitting bureaucracy for years. If those projects had been in place, I have no doubt that the substantial damage could have been prevented.
A particularly cruel irony is that the major issue holding up permitting was the potential these projects would have for covering up some of the nearshore limestone reef with sand. But Frances, in eroding millions of cubic yards of sand from Indian River County beaches, has undoubtedly just buried more acres of nearshore limestone reef than a hundred years of beach renourishment projects.
The lessons of Frances are clear: Beach renourishment works. And while we cannot prevent hurricanes, we do have the power to limit the coastal damage they can inflict. We need to push more vigorously than ever to fully implement these projects, and we need to demand that the responsible regulatory agencies act as partners, not barriers.
JONATHAN GORHAM is coastal resource manager for Indian River County. He holds a doctorate in marine biology from Florida Tech and previously managed the sea turtle conservation program at the St. Lucie nuclear power plant. :1poke: