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The sinkhole is approximately 8 metres (26 ft) by 10 metres (33 ft) in size. The pre-excavation soil surface in the sinkhole was about 7 feet (2.1 m) below the ground surrounding the sinkhole. Cores indicate that the fossil layer in the sinkhole is at least 4 metres (13 ft) deep, extending well below the water table. [4] [5]
The largest deposits of rock phosphate in the United States are found in Florida. [1] Most of this is in Bone Valley in central and west-central Florida. [2]Extended systems of underwater caves, sinkholes and springs are found throughout the state and supply most of the water used by residents.
Sinkholes can be classified on the basis of the processes by which they are formed: dissolution, cover-subsidence, and cover-collapse. Formation of sinkholes can be accelerated by intense withdrawals of groundwater over short periods of time, such as those caused by pumping for frost-protection of winter crops in west-central Florida.
In Florida and Tennessee -- the most active states for sinkholes -- insurers are required to offer sinkhole coverage with home policies, reports the Christian Science Monitor. But although ...
The sinkhole was about 65 feet wide and and 75 feet deep. Crews have now filled the hole with dirt and plan on monitoring it to see if it grows any more. WJXT notes sinkholes have become a regular ...
Following another population boom after World War II, and the creation of the Central and Southern Florida Flood Control Project, the Everglades was divided into sections separated by canals and water control devices that delivered water to agricultural and newly developed urban areas.
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The text of the language of the bill is: CENTRAL AND SOUTHERN FLORIDA "The project for Caloosahatchee River and Lake Okeechobee drainage areas, Florida, authorized by the River and Harbor Act of July 3, 1930, as amended, is hereby modified and expanded to include the first phase of the comprehensive plan for flood control and other purposes in central and southern Florida as recommended by the ...