Florida Sinkholes  

Sinkhole:77-537 (Seminole County, 1986)

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Sinkhole Reference Number: 77-537
Verified Sinkhole:
Date: Feb. 23, 1986
USGS Quadrangle Name: Forest City T40
Size Dimensions: Measured
Shape of Sinkhole: Circular
Length: 0.7 ft
Width: 0.6 ft
Depth: 2 ft
Slope of Sides: 90
Water Visible: No
Water Below Land Surface: -
Limestone Visible: No
Cave Visible: No
Subsidence Rate: Rapid
Triggering Mechanisms: Drought or Low Water Table
Pre-collapse indicators: 0
Property Damage: Yes
Sinkhole Repaired: Yes
Repair Planned: No
Landuse Codes: Urban (Medium/High Density Residential)
Soil Type: Moist Sand
Comments: HOLE DEEPENED BY A FEW INCHES ON SECOND DAY.. CAUSED CLOSING OF 7-ELEVEN STORE FOR AT LEAST 2 DAYS.. UNIVERSAL TESTING LABS DID BORINGS AROUND HOLE.. HOLE PATCHED TWO DAYS LATER.. END. . .


Source: Florida Department of Environmental Protection

 
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