U.S. Geological Survey Open-File Report 03-108, Coastal vulnerability Assessment of Gulf Islands National Seashore (GUIS), Figure 11

Coastal Vulnerability Assessment of GUIS, USGS Open-File Report 03-108

Figure 11.

4.1 million cubic meters of nourishment sand were placed on Perdido Key in 1989 which influenced the rate of shoreline erosion. Prior to 1989 (black line) the calculated rate of erosion on the eastern end of Perdido Key was ~0.5 m/yr greater than after 1989 (red line).

Figure 11. Four million cubic yards of renourishment sand were placed on Perdido Key in 1989, which inflenced the rate of shoreline erosion.