flooding

Towns along the Upper Mississippi River are dealing with some of the worst flooding they’ve ever seen. Busted levees. Flooded downtowns. What does that mean for us in Louisiana? When should we be concerned, and when should we not be?

The Army Corps of Engineers expects to open the Bonnet Carre Spillway Friday afternoon.

Located upriver from New Orleans, the Bonnet Carre Spillway acts as a release valve for the Mississippi River. When the water reaches a flow of 1.25 million cubic feet per second, the Corps opens the spillway to divert some of that water into Lake Pontchartrain.

Scores of coastal research labs around the U.S. are helping communities plan for sea level rise. But now many are starting to flood themselves, creating a dilemma: stay by the coast and endure expensive flooding, or move inland, to higher ground, but away from their subject of study.

The Louisiana Universities Marine Consortium lab is located along the state's fragile coast, about 80 miles southwest of New Orleans. The giant X-shaped building is at the end of a gravel road, surrounded by open water and grassy marshes.

It’s been almost exactly one year since record-breaking rains flooded much of the city, and the city’s pumping and drainage system couldn’t keep up. Later it was revealed that many of the Sewerage and Water Board pumps and turbines weren’t working. Sewerage and Water Board officials say since then they've made $82 million in repairs, and today, the pumping and drainage system is in much better shape.

Sue Lincoln

The best guesstimates of science show Hurricane Harvey headed toward Texas, but just in case…

“I have signed a statewide emergency declaration in preparation for Hurricane Harvey and its impacts on Louisiana,” Governor John Bel Edwards announced Thursday afternoon.


Since rainfall blanketed southeast Louisiana in August 2016, residents have wondered how the state can protect its people from future floods. Answering that question begins with understanding the geography we live in.

Music Producer Jeff Roedel talks about the art spawned by the flood of 2016, including his song "Fight the Flood."


Gov. John Bel Edwards toured flood damage in New Orleans Monday. Edwards and Mayor Mitch Landrieu spoke to business owners and residents in the Treme where cleanup is underway.

Windell Bean’s family has owned their home on St. Ann for 53 years. Other than Katrina, the house hasn’t flooded since 1978. That is until Saturday, when it took on 4 inches of water.

Iris in a rain garden.
LSU AgCenter

Here in Baton Rouge, we have received a teremendous amount of rainfall these past few weeks. You could consider it excessive. But, technically, how much is excessive rainfall and how should it be dealt with?

Frequent rainfall over very long extended period of time, such as one and a half inches of rain every other day for twenty days, could be considered excessive. To the contrary, one single heavy rain event, say five inches in one day, would not be considered excessive rainfall.


Lawsuits Allege Interstate 12 Exacerbated August Floods

Apr 26, 2017

In August, residents of southeast Louisiana were left stunned when water destroyed towns during a so-called 1,000 year rain. The National Weather Service said the flooding was triggered by a slow-moving, low-pressure weather system that dumped as much as two feet of rain over a matter of days. But as Della Hasselle reports, others say some of the damage could have been prevented, and that one highway in particular is to blame.

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