Lake Pontchartrain could merge with surrounding lakes in the fut - FOX 8, WVUE, fox8live.com, weather, app, news, saints

Lake Pontchartrain could merge with surrounding lakes in the future, coastal experts warn

A dozer pushes sediment along the Caminada Headland in Lafourche Parish in this 2013 file photo (John Snell) A dozer pushes sediment along the Caminada Headland in Lafourche Parish in this 2013 file photo (John Snell)
(WVUE) -

A combination of rising seas and sinking land threatens to overwhelm slivers of land that separate lakes surrounding metropolitan New Orleans.

The Louisiana coast already suffers some of the highest subsidence rates on earth, according to geologists, as the Mississippi Delta collapses in both a man-made and natural process. 

Between 1932 and 2016, the U.S. Geological Survey estimates South Louisiana's coast has shrunk by 1,866 square miles.

Louisiana's Coastal Master Plan includes projects to restore wetlands surrounding the land bridge that separates Lake Pontchartrain from Lake Catherine, and a similar isthmus of swamp and marsh that separates Lakes Pontchartrain and Maurepas.

Late last year, RESTORE The Mississippi River Delta, a coalition of environmental groups, called on the state to prioritize a number of projects in the master plan, including the land bridge that borders Lake Maurepas.

Watch the video to learn more about areas experiencing some of the most rapid change along coastal Louisiana.

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