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Florida Karst Sinkhole Information

Lake Shore Ranch Drive, Seffner, Hillsborough County, Florida

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Lake Shore Ranch Drive, Seffner, Hillsborough County, FL Sinkhole of March 23, 2013

Lake Shore Ranch Drive, Seffner, Hillsborough County, FL Sinkhole Scare of March 23, 2013


Lake Shore Ranch Drive, Seffner, Hillsborough County, Florida Sinkhole Area Map
1425/1427 Lake Shore Ranch Drive, Seffner, Hillsborough County, Florida Sinkhole Area Map - Click on Map for a Larger Map that you can Download

To view this location in Google Earth (GE), download this KMZ file. You must have GE installed to be able to load it up in Google Earth, or import it into a GIS program, like QGIS>.


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, 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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GIS and Karst Sinkholes - Useful Links

GIS and Karst Sinkholes - Useful Links



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.

Copyright © 2011-2023 by David Wayne Hurd, All Rights Reserved.