Entries for tag "subsidence"

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Fishing in a flooded island

Fishing in a flooded island

Fishermen within what was once Mildred Island, lost to a levee breach years ago and never reclaimed by its owners. There are several flooded islands in the Delta, most notably Franks Tract, which is now a state park.

Scour pond, Webb Tract

Scour pond, Webb Tract

Scour pond on Webb Tract. There are dozens of scour ponds in the Delta, each marking the site of a levee breach.

Water above land

Water above land

Photograph showing the typical, inverted relationship between land and water in the Delta.

Tree at water’s edge

Tree at water’s edge

This image is an effective illustration of subsidence.

Tree and barge

Tree and barge

Another illustration of subsidence.

Lower Delta topography

Lower Delta topography

The topography of Mandeville and Bacon Islands and Holland Tract, to -20’ below sea level. Darker color represents lower elevation.

Levee Section Diagram - Land, Levee and Water

Levee Section Diagram - Land, Levee and Water

This photomontage describes the predicament that the Delta’s physical form puts those who are responsible for its future. Note the height of the land relative to the water.

Flooded field, Bacon Island

Flooded field, Bacon Island

When their fields are fallow, farmers often allow their fields to take on some water. This keeps the ground from subsiding and allows migrating birds to forage.

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