Louisiana Is Drowning, Quickly

Updated on

and worked on narrower and narrower slivers of land.

“There’s places where I had cattle pens, and built those pens … with a tractor that weighed 5,000 or 6,000 pounds,” said Earl Armstrong, a cattle rancher who grew on the river nine miles south of the nearest road. “Right now we run through there with airboats.”

There are other forces at work, including a series of geologic faults in the delta and the rock layers beneath, but a U.S. Department of Interior report says oil and gas canals are ultimately responsible for 30 to 59 percent of coastal land loss. In some areas of Barataria Bay, said Turner at LSU, it’s close to 90 percent.

Even more damage was to come as the oil and gas industry shifted offshore in the late 1930s, eventually planting about 7,000 wells in the Gulf. To carry that harvest to onshore refineries, companies needed more underwater pipelines. So they dug wider, deeper waterways to accommodate the large ships that served offshore platforms.

Congress authorized the Corps of Engineers to dredge about 550 miles of navigation channels through the wetlands. The Department of Interior has estimated that those canals, averaging 12 to 15 feet deep and 150 to 500 feet wide, resulted in the loss of an additional 369,000 acres of coastal land.

Researchers eventually would show that the damage wasn’t due to surface activities alone. When all that oil and gas was removed from below some areas, the layers of earth far below compacted and sank. Studies have shown that coastal subsidence has been highest in some areas with the highest rates of extraction.

Push to hold industry accountable

The oil and gas industry, one of the state’s most powerful political forces, has acknowledged some role in the damages, but so far has defeated efforts to force companies to pay for it.

The most aggressive effort to hold the industry accountable is now underway. In July 2013, the Southeast Louisiana Flood Protection Authority-East, which maintains levees around New Orleans, filed suit against more than 90 oil, gas and pipeline companies.

The lawsuit claims that the industry, by transforming so much of the wetlands to open water, has increased the size of storm surges. It argues this is making it harder to protect the New Orleans area against flooding and will force the levee authority to build bigger levees and floodwalls.

The lawsuit also claims that the companies did not return the work areas to their original condition, as required by state permits.

“The oil and gas industry has complied with each permit required by the State of Louisiana and the Corps of Engineers since the permits became law,” said Ragan Dickens, spokesman for the Louisiana Oil and Gas Association.

State leaders immediately rose to the industry’s defense. Much of the public debate has not been about the merits of the suit; instead, opponents contested the authority’s legal right to file the suit and its contingency fee arrangement with a private law firm.

“We’re not going to allow a single levee board that has been hijacked by a group of trial lawyers to determine flood protection, coastal restoration and economic repercussions for the entire State of Louisiana,” said Gov. Bobby Jindal in a news release demanding that the levee authority withdraw its suit.

“A better approach,” he said in the statement, “to helping restore Louisiana’s coast includes holding the Army Corps of Engineers accountable, pushing for more offshore revenue sharing and holding BP accountable for the damage their spill is doing to our coast.”

The industry’s political clout reflects its outsized role in the economy of one of the nation’s poorest states. The industry directly employs 63,000 people in the state, according to the federal Department of Labor.

Many of those employees live in the coastal parishes that have suffered most from oil and gas activities and face the most severe consequences from the resulting land loss.

Legislators in those areas helped Jindal pass a law that retroactively sought to remove the levee authority’s standing to file the suit. The constitutionality of that law is now before a federal judge.

Consequences now clear

Even as politicians fought the lawsuit, it was hard to deny what was happening on the ground.

By 2000, coastal roads that had flooded only during major hurricanes were going underwater when high tides coincided with strong southerly winds. Islands and beaches that had been landmarks for lifetimes were gone, lakes had turned into bays, and bays had eaten through their borders to join the Gulf.

“It happened so fast, I could actually see the difference day to day, month to month,” said Lambert, the fishing guide in Buras.

Today, in some basins around New Orleans, land is sinking an inch every 30 months. At this pace, by the end of the century this land will sink almost 3 feet in an area that’s barely above sea level today.

Meanwhile, global warming is causing seas to rise worldwide. Coastal landscapes everywhere are now facing a serious threat, but none more so than Southeast Louisiana.

The federal government projects that seas along the U.S. coastline will rise 1.5 to 4.5 feet by 2100. Southeast Louisiana would see “at least” 4 to 5 feet, said NOAA scientist Tim Osborn.

The difference: This sediment-starved delta is sinking at one of the fastest rates of any large coastal landscape on the planet at the same time the oceans are rising.

Maps used by researchers to illustrate what the state will look like in 2100 under current projections show the bottom of Louisiana’s “boot” outline largely gone, replaced by a coast running practically straight east to west, starting just south of Baton Rouge. The southeast corner of the state is represented only by two fingers of land – the areas along the Mississippi River and Bayou Lafourche that currently are protected by levees.

Finally, a plan to rebuild — but not enough money

Similar predictions had been made for years. But Hurricane Katrina finally galvanized the state Legislature, which pushed through a far-reaching coastal restoration plan in 2007.

The 50-year, $50 billion Master Plan for the Coast (in 2012 dollars) includes projects to build levees, pump sediment into sinking areas, and build massive diversions on the river to reconnect it with the dying delta.

The state’s computer projections show that by 2060 — if projects are completed on schedule — more land could be built annually than is lost to the Gulf.

But there are three large caveats.

  • The state is still searching for the full $50 billion. Congress so far has been unwilling to help.
  • If the plan is to work, sea-level rise can’t be as bad as the worst-case scenario.
  • Building controlled sediment diversions on the river, a key part of the land-building strategy, has never been done before. The predictions, then, are largely hypothetical, although advocates say the concept is being proven by an uncontrolled diversion at West Bay, near the mouth of the river.

Some of the money will come from an increased share of offshore oil and gas royalties, but many coastal advocates say the industry should pay a larger share.

In fact, leaders of the regional levee authority have said the purpose of the lawsuit was to make the industry pay for the rebuilding plan, suggesting that state could trade immunity from future suits for bankrolling it.

That idea is gaining momentum in official circles, despite the industry’s latest win in the state Legislature.

Kyle Graham, executive director of the Louisiana Coastal Protection and Restoration Authority, said recently that the industry understands its liability for the crumbling coast and is discussing some kind of settlement. “It’s very difficult to see a future in which that [such an agreement] isn’t there,” he said he said.

Graham has said current funding sources could keep the restoration plan on schedule only through 2019. He was blunt when talking about what would happen if more money doesn’t come through: There will be a smaller coast.

“There are various sizes of a sustainable coastal Louisiana,” he said. “And that could depend on how much our people are willing to put up for that.”

A vanishing culture

Trying to keep pace with the vanishing pieces of southeast Louisiana today is like chasing the sunset; it’s a race that never ends.

Lambert said when he’s leading fishing trips, he finds himself explaining to visitors what he means when he says, “This used to be Bay Pomme d’Or” and the growing list of other spots now only on maps.

Signs of the impending death of this delta are there to see for any visitor.

Falling tides carry patches of marsh grass that have fallen from the ever-crumbling shorelines.

Pelicans circle in confusion over nesting islands that have washed away since last spring.

Pilings that held weekend camps surrounded by thick marshes a decade ago stand in open water, hundreds of yards from the nearest land — mute testimony to a vanishing culture.

Shrimpers push their wing nets in lagoons that were land five years ago.

The bare trunks of long-dead oaks rise from the marsh, tombstones marking the drowning of high ridges that were built back when the river pumped life-giving sediment through its delta.

“If you’re a young person you think this is what it’s supposed to look like,” Lambert said. “Then when you’re old enough to know, it’s too late.”

This story was written by Bob Marshall of The Lens. Data reporting, maps and design by Al Shaw of ProPublica and Brian Jacobs of Knight-Mozilla Open News. Photo research and audio production by Della Hasselle. Photography by Ellis Lucia of Knapp+Lucia Photography and Edmund D. Fountain.

Satellite-imagery training for this project was provided by the Tow Center for Digital Journalism at Columbia Journalism School.

Icons from The Noun Project: Zoom by Ryan Canning, Touch by Jakob Vogel and Map by Jose Moya.

Leave a Comment