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Sinkholes in Franklin County, FL | Florida Sinkholes

Franklin County, FL Sinkhole Map

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Franklin County, FL FAQs

Franklin County, FL

Franklin County spreads 1,026 square miles on the northwestern part of Florida. Directly adjacent east of its area is the state’s Big Bend region, a marshy coast without barrier islands stretching eastward from the Ochlockonee River in Wakulla County to Anclote Key  in Pasco County.

Named after one of the U.S. Founding Fathers, Franklin was founded in 1832. Its county seat is Apalachicola while Eastpoint is its largest community and the town Carabelle second. The islands of St. Vincent, St. George and Cape St. George, as well as Dog Island, are part of Franklin’s territory and buffer much of the county’s mainland shores from the Gulf of Mexico.

Relaxed lifestyle

Franklin County real estate provides an environment enabling a relaxed lifestyle. Aside from its coveted Gulf Coast features, large nature preserves account for much of the county’s acreage. The national protected areas in its fold include parts of the Apalachicola National Forest and the St. Vincent National Wildlife Refuge. Tate’s Hell Forest, earlier exploited for commercial timber but acquired by the state of Florida in 1994 for preservation and restoration, is also in Franklin County to further boost its natural assets.

The county, with these features, has stepped beyond timber cutting, aquaculture and fishing to drive its economy. In more recent years, Franklin has also grown as a result of the influx of more tourists and retirees fascinated by the beauty of its natural environment.

New Urbanism

The county seat, Apalachicola, typifies the laid-back living that Franklin real estate offers. It is a domain of the popular New Urbanism concept of living within walkable communities, such as Seaside, close to every want and need of residents. At the same time, this community is a haven of many historic residences, some even predating the U.S. Civil War, and which was why the National Trust for Historic Preservation recently named this town one of the most distinctive U.S. destinations.

Carrabelle, another Franklin population center, provides another vivid picture of the rustic character of the county which about two-thirds rural and with a low population density of just some 22 residents per square mile. Crowds and traffic are virtually non-existent in Carrabelle, despite its being the second largest community of Franklin. As a result, its residents can enjoy in relative solitude such activities as biking, hiking and water-based delights like canoeing, kayaking, sailing, diving and fishing in either fresh or saltwater.

Island-style living, typically a pricey choice in many of Florida’s home buying destinations, would be more affordable at Franklin County where the cost of living is less than the U.S. average. The county’s St. George Island, which has earned the moniker “The Uncommon Florida,” offers a serene setting devoid of the high-rise condominiums in many Gulf Coast home buying destinations. The available properties here mainly consist of single family homes and low-rise apartments and townhouses, with a median price in the upper $300s and rentals of $1,125 for an average-sized, one-bedroom apartment.

References:

APALACHICOLA, FL
Aug 2013 – A sinkhole appeared near the tennis courts at Chapman Square, (14th Street and Avenue D) in Apalachicola. The three-foot-by-three-foot depression is over two feet deep.

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Sinkholes in Franklin County, FL

North Florida’s Big Bend is known for its active sinkholes. This is due to porous limestone bedrock covering 1,026 square miles. The rock slowly dissolves, creating holes that collapse under weight.

Coastal erosion and seasonal water changes speed up these events in some spots.

The Florida Department of Environmental Protection watches these changes closely. They use statewide sinkhole tracking systems to track over 150 incidents. Karst landscapes here have unique features like disappearing streams and sudden depressions.

These areas are more active near ancient marine fossil beds.

There are three main reasons for the high risk of sinkholes here. These are limestone depth, changes in the aquifer level, and the weight of human structures. Most incidents happen within 5 miles of the Apalachicola National Forest.

Here, weathered bedrock meets coastal plain sediments.

This region sees 63% more sinkholes than nearby counties. Hydrologists say saltwater intrusion and rising sea levels play a big role. These factors are more common in Florida’s coastal areas.

Recent & Notable Sinkhole Incidents / Case Studies

Florida’s systems track Franklin County sinkhole FL activity closely. The Florida Department of Environmental Protection (FDEP) has a map for sinkholes across the state. This map helps people see trends and risks in Franklin County.

The 2008 Florida Center for Instructional Technology (FCIT) mapping project set standards for sinkhole reports. This project has led to:

  • Standardized reporting of sinkhole sizes and locations
  • Uniform criteria for risk assessments in insurance and real estate
  • Keeping historical data for long-term studies

To find out about property-specific sinkhole history in Franklin County:

  1. Visit the Karst Feature Inventory Portal on FDEP’s site
  2. Choose “Franklin County” from the menu
  3. Use date filters (2004–2024)
  4. Check county land records for more info

FDEP data shows patterns but doesn’t reveal exact addresses. Franklin County has some sinkhole activity, but it’s not as high as in areas like Pasco County. Most sinkholes happen in limestone areas near the Apalachicola River.

Homeowners should look at FDEP records and get a geological survey for a full risk check. The state updates its data every quarter. This helps people make smart choices about their properties.

Risk Factors & What Homeowners Should Do

Properties in Franklin County FL face high sinkhole risks. This is due to three main factors. Coastal erosion near the Gulf of Mexico makes land unstable. Limestone aquifers under homes dissolve more easily in heavy rain.

Areas with past sinkhole incidents have a higher chance of more. FDEP records show this.

Florida Department of Environmental Protection says to act fast if you see damage signs. Look for wall cracks over 1/4 inch, doors that won’t latch, or sudden pool water loss. Take photos, report to local authorities, and get a state-certified geological inspection within 30 days.

Florida Statute 627.706 makes sure all homeowner insurance in Franklin County FL covers sinkhole damage. Insurers need FDEP-approved reports to approve claims. Installing sinkhole monitoring systems or reinforcing foundations can save money on repairs later.

People living near known sinkhole areas should check their property history. Use Franklin County’s Geographic Information System portal. Look for soil depressions or leaning trees yearly. Working with licensed engineers helps follow Florida Building Code standards for sinkhole areas.

FAQ

Why is Franklin County particularlly prone to sinkhole formation?

Franklin County’s geology is made of porous limestone, common in Florida. This rock, along with underground water flow, makes sinkholes likely. The Big Bend region’s natural conditions help sinkholes form over time.

How can residents check for historical sinkhole activity on specific properties?

The Florida Department of Environmental Protection has an interactive sinkhole map. It uses data from the 2008 FCIT mapping. Residents can check this map with county records and get a site-specific assessment from a certified engineer.

What immediate actions should homeowners take when observing possible sinkhole indicators?

Homeowners should document any changes with photos or videos. They should report this to the county and get a professional’s opinion. Florida Statute 627.706 says insurers must cover geological assessments for sinkhole claims.

Are all properties in Franklin County required to have sinkhole insurance coverage?

Florida law lets insurers offer sinkhole coverage, but it’s not mandatory. Homeowners must choose this option. Coverage terms differ by insurer, based on FDEP’s maps and geological surveys.

How does coastal erosion in Franklin County influence sinkhole risks?

Coastal erosion, caused by saltwater from Apalachicola Bay, speeds up limestone dissolution. This increases the risk of subsurface cavities, more so in areas with subsidence history or changed drainage.

What geological evidence explains Franklin County’s sinkhole susceptibility compared to other Florida regions?

Franklin County sits on the Floridan Aquifer System, making it vulnerable. USGS surveys show how dissolution features along old coastlines affect the county’s topography.
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