Photo by: Brady Couvillion

Land Area Change in Coastal Louisiana(1932 to 2010)D. Phil Turnipseed, P.E., D.WREDirectorUSGS National Wetlands Research CenterU.S. Geological SurveyU.S. Department of the Interior

Photo by: Brady Couvillion

Louisiana Wetlands are Louisiana Wetlands are Critical Critical

25% U.S. oil and gas production 25% U.S. oil and gas production

20% of U.S. waterborne commerce20% of U.S. waterborne commerce

70% of migratory birds winter in Louisiana 70% of migratory birds winter in Louisiana

Land Area Change in Coastal Louisiana

1,883 square mile

decrease

This equates to losing: A land area the size of Delaware

over 78 years A land area greater than the

island of Manhattan every year

From 1985-2010: A football field every hour 16.57 square miles every year

Coastal Louisiana Lost 1,883 square miles from 1932-2010

Lake SalvadorShoreline Erosion

Barrier Island Land ChangeIsles Dernières

Multiple Impacts Birds Foot Delta

Delta BuildingWax Lake Outlet/Atchafalaya Delta

Extent of Mississippi River SedimentMay 27th, 2011

http://www.lacoast.gov/crms

http://www.nwrc.usgs.gov/