Are Lakeland, FL’s lakes a product of sinkholes?

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Lake Mirror | Image via @sarah7clark

When you think of Lakeland, what’s the first thing that comes to mind? Lakes? Swans? Publix?

What about sinkholes?

DYK: Florida is one of the top seven states that is the most at risk for sinkhole activity? If you’re new here, a sinkhole can be defined as “a hole formed in soluble rock by the action of water, serving to conduct surface water to an underground passage.”

A map of Polk County’s sinkholes | Screenshot via Maps ETC

And, because of the nature of Florida’s terrain and its susceptibility to sinkholes, many of the ponds, lakes, and depressions were caused by this phenomenon .

Even some of the larger lakes and ponds were formed by a cluster of sinkholes that eventually opened up into one large, lake-like hole.

In fact, the most common origin of a lake formation is by a process called karst erosion , which takes place in order for sinkholes to occur.

Polk secures a yellow marker meaning that the county falls into the category of 100-999 sinkholes. | Screenshot from sinkholemaps.com

All this talk of the earth opening up led us to a couple of questions: Were any of Lakeland’s lakes formed by sinkholes? Or, are all of Lakeland’s lakes purely man-made?

Here’s what we know:

  • 38. That’s the number of lakes within Lakeland’s city limits.
  • 7. Where Polk County ranked on RiskMeter’s Top 10 Sinkhole-Prone Counties in Florida list.
  • 567. The number of reported sinkholes in Polk County.
  • 94%. The percentage of lakes or “water-features” in Polk that are located within either the Alafia, Kissimmee, or Peace River Basin(s) – “Lakes located on the ridge areas are thought to occupy depressions formed by sinkholes.”
  • 900. That’s how many lakes or “water-features” sit in Polk with a surface area of 10 acres or more as of 2006.
  • 2006. That’s the year that Lake Scott began to drain due to two large sinkholes that opened up at around 200 ft. wide + 15 ft. deep.
  • 5,200. That’s the estimated coverage of Winter Haven’s 50 lakes – most of which are “solution lakes,” meaning they were formed similarly to sinkholes.
  • 7,800. That’s the number of “naturally-made” lakes in the Sunshine State as of 2016 .
  • 4. What Polk County ranked in the State of Florida for counties with the most lakes.

Winter Haven’s sinkhole-like lakes as of ‘06 | Screenshot via “Hydrology of Polk County, Florida

The final verdict remains unclear whether or not Lakeland’s lakes were a product of sinkhole activity. However, if you happen to know the answer to our question, be sure to drop us a line .

Poll

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