sediment

Mississippi River loses most of its sediment—and land building ability—before reaching the Gulf

New research shows that typically, less than 10% of land-building alluvium reaches the Bird’s Foot Delta region, the southernmost reach of the river, where it meets the Gulf.

Alisha Renfro, coastal scientist with the National Wildlife Federation, takes a sediment core sample from Quarantine Bay during a period of high water. New research shows that Neptune Pass is building new land with material from the Mississippi River.

Coastal Desk

Through a new Mississippi River channel, Mother Nature shows the land-building power of sediment diversions

Delaney Dryfoos (The Lens)

As the Mid-Barataria Sediment Diversion flounders amid politics, some scientists say that doubts about its effectiveness can be addressed by Neptune Pass, which branched off the Mississippi on its own and is creating the largest new delta in North America.

Coastal Desk

What's the Best Way To Fix the LSU Lakes?

The LSU lakes are sick. They’re slowly filling with harmful nutrients and sediment, without an effective way to drain.“If we do nothing, they will become…