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Florida Karst Sinkhole Information

Faithway Drive, Seffner, Hillsborough County, Florida

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Faithway Drive, Seffner, Hillsborough County, FL Sinkhole of February 28, 2013

Faithway Drive, Seffner, Hillsborough County, FL Sinkhole of February 28, 2013


Bush Residence, Faithway Drive, Seffner, Florida Sinkhole Area Map
Faithway Drive, Seffner, Florida Sinkhole Area Map - Click on Map for a Larger Map that you can Download

I have created this map of the Karst sinkholes in Florida using ESRI ArcGIS 9.3. The sinkhole GIS data (depicted as yellow double-circles) is somewhat dated, and was downloaded from the Florida Department of Environmental Protection webpage about the Florida Geological Survey, Subsidence Incident Reports. The webpage a that link will prompt your for a valid email address, before you can download any GIS data about Karst Sinkholes, which they refer to as subsidence incidents.

The subject sinkhole of this webpage, the Bush property, in Seffner, was geographically created from a variety of sources, the local news for the description of the incident and Google Earth, to obtain the latitude and longitude of the sinkhole location. This data was then entered into a new ESRI shapefile that I specifically created to match the State's sinkhole shapefile, and brought into this map.







Florida Sinkhole Insurance

Florida Sinkhole Insurance


In January, 2011, Senate Bill 408, also known as SB 408, was signed into law. This law seems to impact the residents of Pasco and Hernando Counties, the hardest. If you have property in the areas of Florida that are susceptable to sinkholes, then you should review your Florida insurance policies and the Florida Sinkhole legislation, then contact your insurance agent for sinkhole coverage, or a sinkhole attorney.




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11/09/2019 02:50 PM
Florida Sinkhole Repair and Foundation Repair Specialists ...
Sinkhole Damaged Foundation Repair. In addition to stabilizing sinkholes, we offer Florida sinkhole remediation services and foundation repair services to ensure that your home is on steady footing. Foundation damage can be an early warning sign of sinkhole issues, so working with a sinkhole repair specialist to inspect and repair your foundation can ultimately save you from future costly repairs, possibly including the complete loss of your home.
11/06/2019 01:42 PM
Sinkhole Repair Services - Helicon
Premier Sinkhole Repair Company in Florida As one of Florida's leading sinkhole repair companies, Helicon has successfully completed thousands of sinkhole repair projects in the state of Florida with a focus on the Tampa Bay metropolitan area, including the surrounding counties of Hillsborough, Pinellas, Pasco, Hernando, Polk, Citrus and Marion counties.
11/06/2019 02:25 PM
Sinkhole Repair Services in Florida - Foundation Repair
Sinkhole Repair Services in Florida. Foundation Services of Central Florida, Ocala, FL is the #1 most trusted and experienced name in Sinkhole Repair in Central Florida. We have completed more than 2,000 successful sinkhole and foundation repair projects in the state over more than two decades. The sinkhole remediation method(s)...
11/01/2019 11:09 PM
Sinkhole Repair Company Florida | Sinkhole Remediation ...
Sinkhole Repair Florida When a sinkhole is discovered, examined and tested by an Civil Engineer (Foundation Masters) or Geo Engineer, a repair method will be developed depending on the size, location, and the soil conditions under and around the sinkhole.
10/25/2019 11:39 PM
Sinkhole Repair | Florida | NSquare, Inc.
NSquare, Inc., is Florida's leading local sinkhole repair company. We offer free, no-obligation sinkhole inspections for residents across Southern Florida. Our Florida service area includes: Sarasota, Lee, Collier, Charlotte, Glades, Hendry, Monroe, Miami-Dade, Broward and Palm Beach.
11/06/2019 03:30 PM
Foundation Services | Sinkhole Repair and Remediation ...
Sinkhole Repair Foundation Services of Central Florida Most trusted name in Central Florida since 1990.
11/06/2019 06:14 PM
Florida Sinkhole Regions and Where They Are a Threat
Sinkholes can form anywhere in Florida, but the highest activity level occurs in west central Florida because of the karst limestone environment. There are several influences that increase the risk of sinkhole activity such as long-term weather conditions, heavy acidic rains, and drought-like conditions.
11/12/2019 10:01 AM
Southeast USA Premier Geotech Construction Company - Helicon
As one of Florida's leading foundation repair and sinkhole repair companies, Helicon has successfully completed thousands of foundation repair projects in the State of Florida with a focus on the Tampa Bay metropolitan area, including the surrounding areas of Hillsborough, Pinellas, Pasco, Hernando, Polk, Manatee, Sarasota, Orange, Charlotte, Lee, Collier, Citrus, and Marion Counties.
10/16/2019 12:51 PM
Repairing sinkhole damage, hiring a repair contractor for ...
Repairing Sinkhole Damage Sinkhole activity in the United States occurs most often in Florida, Tennessee, Texas, Alabama, Missouri, Kentucky, and Pennsylvania. As a property owner, sinkhole repair and remediation can seem overwhelming.
11/06/2019 02:18 PM
Best Sinkhole Repair Methods | Earth Tech
Best Sinkhole Repair Methods. In general, a hole that’s very small and very stable in an open area can simply be filled with dirt and restored with ground cover. A larger hole in an open area is likely to need excavation down to some sort of bedrock for stability, and then a filling operation with layers of rock, gravel, dirt, and possibly grout.


GIS and Karst Sinkholes - Useful Links

GIS and Karst Sinkholes - Useful Links


Several very good descriptions and sinkhole facts can be found on this external webspage: CNN Foundation Technologies - FAQ


How Sinkholes Form is a very informative webpage about sinkholes in Florida, it is hosted by the St. Johns River Water Management District.


Some local and state-wide GIS data can be found on the St. Johns River Water Management District's GIS Development Program.



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About this Webpage

I enjoy working with GIS data and try to find new things to keep my skills honed with.

Within these pages, I am performing some GIS tasks about the Karst Sinkholes in Florida. After seeing the news about the 100 foot-side sinkhole that had opened up behind a house in Windermere, Florida, I decided to see what was available for historic sinkhole data and started developing this webpage, complete with a time-lapse video of the historic locations of the sinkholes.

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