Archive for Mid-Barataria Sediment Diversion


What can the 1927 flood teach us about coastal restoration?

February 2, 2016 | Posted by Delta Dispatches in Coastal Protection and Restoration Authority (CPRA), coastal restoration, Community Resiliency, Diversions, Mid-Barataria Sediment Diversion, Restoration Projects, Science

By Natalie Peyronnin, Director of Science Policy, Mississippi River Delta Restoration, Environmental Defense Fund

During the historic 1927 flood, a portion of the Mississippi River levee south of New Orleans was dynamited to lower the water level and prevent catastrophic flooding – seen in much of the Mississippi River Basin – from occurring in the city. This explosion created a 2-kilometer wide crevasse, which redirected water into nearby Breton Sound.

Nearly 90 years later, scientists have completed measurements in the upper Breton Sound basin to quantify the sediment deposition in the 50-square-mile crevasse splay created by the levee break.

In the study, “Sediment Deposition at the Caernarvon Crevasse during the Great Mississippi Flood of 1927: Implications for Coastal Restoration,” John W. Day et al. state that “The 1927 crevasse deposition shows how pulsed flooding can enhance sediment capture efficiency and deposition and serves as an example for large planned diversions for Mississippi delta restoration.”

Figure 2. The Breton Sound Estuary. Dots indicate where core samples were taken and the approximate area of the crevasse splay deposit based on researchers measurements. Blue dots indicate cores that has additional analysis carried out. Upper right inset: aerial photo showing Mississippi River flowing through the 1927 Caernarvon levee breach. Dark black line at hte site of the crevasse is the estimated width of the levee breach.

Figure 2. The Breton Sound Estuary. Dots indicate where core samples were taken and the approximate area of the crevasse splay deposit based on researchers' measurements. Blue dots indicate cores that had additional analysis carried out. Upper right inset: aerial photo showing Mississippi River flowing through the 1927 Caernarvon levee breach. Dark black line at the site of the crevasse is the estimated width of the levee breach. John W. Day et al.

Researchers found a distinct layer of sediment from the 1927 crevasse, ranging from 0.8-16.5 inches thick, at 23 of the sites they sampled, with the thickest layer closest to the river. The investigators estimated that more than 40 million tons of sediment flowed from the Mississippi River into Breton Sound during the 108 days the crevasse was open.

The marshes in the splay captured approximately 55-75 percent of the suspended sediments that poured through the crevasse, which resulted in the deposition of roughly 30 million tons of sediment within the 50-square-mile crevasse splay. In one core, the sediment deposition rate in 1927 was at least 0.8 inches per month – that’s 10 times more than the annual post-1927 average. The results of this study could have important implications for future coastal restoration projects, specifically sediment diversions.

Lessons learned for restoration

The flood of 1927 was an unprecedented, fatal flood that caused massive and widespread economic and structural damages. Louisiana, as well as all the other communities along the Mississippi River, are now largely protected by a federal system of levees and spillways, as evidenced during this year’s winter flood.

But the 1927 flood also provided a major land-building opportunity, as wetlands help provide protection from future flooding and loss of life. Large, episodic flood events, like the 1927 flood and this winter’s high-water event, can be used to build vast land in relatively short periods of time, while balancing the needs of the ecosystem and the people and wildlife that depend on it.

The state of Louisiana is currently working to engineer and design controlled river diversions, which would harness the power of the river to build land. This past fall, the Coastal Protection and Restoration Authority voted to advance the Mid-Barataria and Mid-Breton sediment diversions. Controlled sediment diversions like these are vital components of any large-scale restoration plans.

Possible effects on fisheries

Despite their land-building potential, there currently exist some questions and concerns about how sediment diversions will affect fisheries. The researchers determined that the periodic opening of flood control structures, such as the Bonnet Carré Spillway and the 1927 crevasse, during high-water events, demonstrate the balance that can be achieved between inflows of fresh water and fishery concerns.

“The periodic opening of the Bonnet Carré Spillway and the 1927 crevasse at Caernarvon serve as good models for understanding the significance of this fishery concern. The periodic openings have minimized algal blooms to short periods and resulted in larger fisheries catches in years following openings,” the study says.

“Given predictions of accelerated sea level rise, increasing human impacts, and growing energy scarcity, delta restoration should be aggressive and large-scale. We believe that restoration of the Mississippi delta will require diversions similar in scale to historical crevasses if they are to be most effective.”

How was the research conducted? 

The scientists collected 23 sediment cores that extended down 1 meter throughout the 50-square-mile crevasse outfall area. The core sediments were analyzed for sediment type, properties and age. Deposition of sediment from the crevasse extended over seven miles from the break in the levee.

The 1927 sediment deposits were found at an average depth of 13.8 inches below the marsh surface, suggesting a post-1927 deposition rate of 0.2 inches per year. Deposition rates ranged from 0.2 to 4.6 inches per month over the 3.6 months that the crevasse was open.

The estimated sediment load entering through the crevasse from the river during the 1927 event was 40 to 54 million tons, and roughly 30 million tons of that sediment was deposited and retained within the 50-square-mile crevasse splay. Based on the varying thickness of the 1927 deposit over the splay, the volume of the 1927 deposit could cover 11.5 square miles with about 3 feet of sediment.

The lessons learned from researching previous high-water events can help planners design the best, most effective restoration solutions to help rebuild wetlands vital to our future.

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Mississippi River’s High Water Brings (Literally) Tons of Needed Sediment to Louisiana

January 20, 2016 | Posted by jhebert in 2011 Mississippi River Flood, Army Corps of Engineers, Coastal Protection and Restoration Authority (CPRA), coastal restoration, Diversions, Mid-Barataria Sediment Diversion, Science

By Alisha Renfro, Staff Scientist, Restore the Mississippi River Delta Coalition, National Wildlife Federation

This is the second in a series of blog posts focusing on the recent opening of the Bonnet Carré Spillway in response to the Mississippi River high-water event. See the first post on the history of the Mississippi River and Tributaries (MR&T) system here

The current high-water event on the Mississippi River is sending more than one million cubic feet of water per second down the lower Mississippi River, carrying with it sediment that is an essential ingredient to restoring Louisiana’s wetlands. The unfortunate irony is that a great deal of this sediment is passing right through Louisiana and off the outer continental shelf, beyond where it can be of any immediate restorative benefit to the state’s vanishing wetlands.

Historically, flood events like this helped to build and maintain the once vast wetlands of the Mississippi River Delta. Today, without sediment diversion projects in place, much of that turbid brown water completely bypasses our sediment-starved wetlands and is lost. Once in place, sediment diversions, integrated with the flood protection system, will capture this opportunity and put the river back to work rebuilding our wetlands.

SedimentGraphJan2016

On average, the Mississippi River carries about 2.5 tons of sediment per second past the Belle Chasse river gage south of New Orleans. However, during high discharge events, sediment load in the river can increase considerably. When river discharge reaches one million cubic feet per second, roughly 6.5 tons of sediment is carried past the Belle Chasse station every second – that’s more than double the average.

Over the last two years, an estimated 184 million tons of sediment has passed Belle Chasse. Some of this sediment is deposited in the river channel, in wetlands and in shallow water around the Bird’s Foot Delta. However, most of this sediment is lost to deeper waters off the continental shelf, as seen in the above MODIS satellite image.

As Louisiana’s land loss crisis has worsened, the need to capture and use this sediment is greater than ever. But while our sediment counter continues to tick away, some progress has been made. Since 2012, projects in the vicinity of Lake Hermitage, Bayou Dupont and Grand Liard have used sediment dredged from the river to create land. Even more significant, last October, the Coastal Protection and Restoration Authority recommended the advancement of two sediment diversion projects at Mid Barataria and Mid Breton into engineering and design. Together, marsh creation and sediment diversion projects will better leverage the precious resource that is constantly flowing through our state to help restore Louisiana’s coast.

Hopefully the next time we have a high-water event like this one, we’ll have sediment diversions in place to make the most out of the situation: to both reduce potential flooding AND capture sediment for restoration. Now that’s a win-win.

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Groups Pleased As Key Sediment Diversions Advance, Coastal Restoration Funds Protected

October 21, 2015 | Posted by Elizabeth Van Cleve in 2012 Coastal Master Plan, Coastal Protection and Restoration Authority (CPRA), Media Resources, Meetings/Events, Mid-Barataria Sediment Diversion, Science

FOR IMMEDIATE RELEASE

Contact:
Emily Guidry Schatzel, National Wildlife Federation, 225.253.9781, schatzele@nwf.org
Jacques Hebert, National Audubon Society, 504.264.6849, jhebert@audubon.org
Elizabeth Van Cleve, Environmental Defense Fund, 202.553.2543, evancleve@edf.org
Jimmy Frederick, Coalition to Restore Coastal Louisiana, 225.767.4181, jimmy.frederick@crcl.org
John Lopez, Lake Pontchartrain Basin Foundation, 504.421.7348, jlopez@saveourlake.org

Groups Pleased As Key Sediment Diversions Advance, Coastal Restoration Funds Protected

CPRA Board Moves Forward on Two Diversion Projects, Proposes Using GOMESA Funds for Highway Elevation

(October 21, 2015 – Baton Rouge) Today, Louisiana’s Coastal Protection and Restoration Authority (CPRA) board announced two major developments. First, CPRA recommended advancing both the Mid Barataria and Mid Breton sediment diversion projects in the Coastal Master Plan, which will reintroduce fresh water and sediment from the Mississippi River into its surrounding, collapsing wetlands and rebuild land over time. Secondly, the CPRA board voted to approve a new proposal to use Gulf of Mexico Energy Security Act (GOMESA) money, rather than funds previously committed to projects in the state’s Coastal Master Plan, for elevating Louisiana Highway 1.

The Restore the Mississippi River Delta Coalition – which includes Lake Pontchartrain Basin Foundation, Coalition to Restore Coastal Louisiana, Environmental Defense Fund, National Audubon Society and National Wildlife Federation – issued the following statement in response:

“We are pleased to see CPRA leverage the most current and best-available science to move forward the Mid Barataria and Mid Breton sediment diversions projects into engineering and design. The urgency and severity of our collapsing delta requires that we use the most powerful tools at our disposal. Sediment diversions provide the best opportunity to restore the coast over time, preserving our communities, industries and entire way of life. We will continue to pursue and understand the science behind diversions, but there is no scientific uncertainty about our physical reality – we live in a landscape built by the river, disappearing because we have cut the delta off from the river.

“This announcement is an important step toward getting sediment diversions up and running. We’re in a race against the clock and forces of nature. We need to move forward at full speed while ensuring efficiency and transparency in the steps ahead.

“Louisiana Highway 1 is a critical corridor for our state and national economic vitality. We believe that the elevation of Highway 1 is eligible for GOMESA funding, and we join with the LA1 Coalition in pursuit of adequate funding for this and other coastal infrastructure projects. We support the development of a prioritization system that would allow for up to 10 percent of GOMESA revenues to be spent on coastal infrastructure projects, with a focus on projects that are directly impacted by coastal wetland loss. This system should reflect the significant role of coastal infrastructure projects such as Highway 1, which contribute to energy security, community resiliency, and the national, state and local economy. This is a long-standing and well-understood aspect of GOMESA and does not veer from any prior commitments to restoration.

“We are gratified that the state has made the right decision in considering an appropriate funding source for this coastal infrastructure improvement project and has not moved forward with using oil spill funds it previously committed to the Coastal Master Plan.”

A recent poll found tremendous statewide support for coastal restoration:

  • 94 percent indicate that a gubernatorial candidate’s commitment to protect and restore coastal Louisiana will be important to them when they vote.
  • 90 percent want the next governor to ensure funds currently dedicated to coastal restoration are not spent on anything but coastal restoration.
  • 87 percent want the next governor to work to identify and secure funding for future projects identified in the state’s Coastal Master Plan.
  • 85 percent believe restoration of coastal Louisiana should be a high priority for the new governor.
  • 95 percent want the new governor to commit to move quickly and get started building coastal restoration projects.
  • 78 percent believe protecting and restoring coastal Louisiana is as important as other issues facing the state.
  • Two-thirds (66 percent) indicate support for river diversions to build new land in Louisiana.

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The Restore the Mississippi River Delta Coalition is working to protect people, wildlife and jobs by reconnecting the river with its wetlands. As our region faces the crisis of threatening land loss, we offer science-based solutions through a comprehensive approach to restoration. Composed of conservation, policy, science and outreach experts from Environmental Defense Fund, National Audubon Society, National Wildlife Federation, Coalition to Restore Coastal Louisiana and Lake Pontchartrain Basin Foundation, we are located in New Orleans and Baton Rouge, Louisiana; Washington, D.C.; and around the United States. Learn more at MississippiRiverDelta.org and connect with us on Facebook and Twitter.

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The History of Coastal Restoration in Louisiana: More than 40 years of planning

August 17, 2015 | Posted by lbourg in 2012 Coastal Master Plan, Coastal Protection and Restoration Authority (CPRA), coastal restoration, Community Resiliency, Diversions, Hurricane Katrina, Hurricanes, K10, Louisiana Coastal Area (LCA), Mid-Barataria Sediment Diversion, Restoration Projects, Science

By Estelle Robichaux, Restoration Project Analyst, Environmental Defense Fund and Gaby Garcia, Science Intern, Environmental Defense Fund

The damage wrought by Hurricane Katrina, which made landfall in Louisiana’s bird’s foot delta nearly 10 years ago, brought regional and national attention to the state’s dramatic and ongoing coastal land loss crisis. But this crisis, as well as innovative and large-scale solutions to reverse wetland loss, had been studied, discussed and planned by scientists and decision-makers for decades.

In a series of blog posts, we will explore a few of Louisiana’s early restoration plans that, in many ways, laid the groundwork for the 2012 Coastal Master Plan.

More than 40 years of restoration ideas & planning

In 1973, Louisiana State University’s Center for Wetland Resources published a multi-volume report titled "Environmental Atlas and Multi-Use Management Plan for South-Central Louisiana. The report provides an overview of the Barataria and Terrebonne Basins and recommendations for natural resource management and restoration.

One of the most notable recommendations is initial discussion of a freshwater and land-building river diversion into Barataria Basin at Myrtle Grove, a project now known as the Mid-Barataria Sediment Diversion. A number of other natural resource management options are described in the plan, including the engineering of barrier islands, use of salt domes for water management, hydrologic restoration and regulation of development.

But not all the ideas have had as much staying power as the notion of harnessing the muddy Mississippi River to restore and maintain coastal wetlands.

Barrier islands in lakes?

Barrier islands are a coastal area’s first line of defense against storm surge, wave action and tides. These islands not only provide important habitat for many bird species, but they protect natural and built infrastructure upon which Louisiana’s economy depends.

This early management plan suggests constructing barrier islands along the shorelines of large lakes and bays, to help stop erosion in these areas. The authors state that these islands would create new, more diversified habitats as well as enhanced recreational opportunities. While these would be nice benefits to have, it would require building a highly engineered, unnatural feature into the landscape.

Not only is this line of thinking something that ecologists and natural resource managers have moved away from, but these projects would not have done anything to address the root causes of land loss. Therefore, they would have been extremely expensive to maintain due to a lack of natural sediment input and continued saltwater intrusion.

Building out of harm’s way

One of the concepts proposed in the report is the establishment of a network of “development corridors” throughout south-central Louisiana. These corridors would ensure limited development in vulnerable coastal areas while encouraging urbanization in areas that have firmer soils, good drainage and are reasonably safe from flooding. They would have been focused on natural levee ridges for land stability and have access to major and minor waterways for commerce.

developmentcorridors

Development Corridors

Interestingly, the areas within the proposed network of corridors are the economic and population centers that many Louisianans are most concerned about protecting today. Moreover, the areas outside of this network, where the authors specifically discourage further development, are those that we now recognize as some of the most vulnerable to increased damage from storms and the threat of sea level rise.

A diversion at Myrtle Grove

Certain solutions in the report still maintain a presence in restoration efforts today, specifically the proposal to construct a freshwater diversion at Myrtle Grove. Today, this project is called the Mid-Barataria Sediment Diversion and has evolved into a plan to pulse high-velocity river water, full of sediment, into deteriorating wetlands in the adjacent Barataria Basin. Unlike the project defined in the 2012 Coastal Master Plan, the 1973 plan focuses on using fresh water to help establish a proper salinity gradient and combat saltwater intrusion and has other, more complex plans for diverted sediment.

myrtle grove 2As with today’s sediment diversions, the plan recommends that water flow from the Mississippi River be regulated by a control structure, through a diversion canal and then into the basin. The authors predict that the diverted water would abruptly loose velocity on the basin-side of the canal and deposit sediment in a “silt fan” near the canal mouth. While some sediment would continue out into adjacent wetlands, recreating more naturally occurring conditions, sediment from the stilling lagoon and silt fan would be removed by a small dredge and conveyed via pipeline for either construction or restoration purposes.

Evolution in natural resource management & restoration

Clearly, the idea behind what is now a crucial component to Louisiana’s Coastal Master Plan, diverting fresh water and sediment from the river to build new land, has come a long way from its humble beginnings. And although many of the proposed restoration and management solutions in the 1973 report did not make the cut, the problems they sought to address still threaten the livelihoods and communities of coastal Louisiana.

Check back as we continue to trace this history of restoration planning in Louisiana, which only emphasizes the great need for restoration action now!

 

Want to get involved? Take the PLEDGE now to vote in the upcoming elections and urge candidates to support the following restoration principles:

1. Be a voice for coastal restoration progress

2. Protect Existing and Secure Future Coastal Restoration Funding

3. Support the Coastal Master Plan

Find out more at RestoretheCoast.org.

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Diversions Expert Panel engages scientific community for second public meeting

May 1, 2014 | Posted by Delta Dispatches in 2012 Coastal Master Plan, Diversions, Meetings/Events, Mid-Barataria Sediment Diversion, Restoration Projects, Science

By Erin Greeson (National Audubon Society) and Alisha Renfro (National Wildlife Federation)

While there is no question that large-scale action is urgently needed to add address Louisiana’s land loss crisis, some questions surround the scientific solutions necessary to address this challenge. As the state of Louisiana advances its Coastal Master Plan and the comprehensive set of restoration projects within it, experts have opened discussion to scientists and interested members of the public to provide information, share science and encourage dialogue.

This week in New Orleans, the Expert Panel on Diversion Planning and Implementation had their second meeting, which offered an opportunity to reconvene for updates and discussion on sediment diversions – one of the key tools in Louisiana’s coastal restoration toolbox. In addition to addressing environmental concerns, the panel addressed social and economic questions about river diversions and the communities they will impact.

Sediment-starved-sediment-wasted-CPRA

At the start of the meeting, Mr. King Milling, Chair of the Governor’s Advisory Commission on Coastal Protection, Restoration and Conservation, delivered a powerful reminder of Louisiana’s disappearing coast:

“Demise of this delta would be an environmental impact of international proportions: disaster for economy, culture, communities – all the things we do and live for in the delta. If we don’t proceed urgently, we will lose the delta. Nothing will stop this damage if we don’t proceed in an orderly fashion with large-scale, comprehensive solutions. This is not a time for debate. Our role is to address the issue of remarkable deterioration, and the state’s diversion committee will be addressing issues and conflicts. Its position is to focus on the larger picture of how we can preserve as much as we can, and how can we create a system that will protect as much as we can.”

2012-Master-Plan-Coastwide1

The first day of the meeting was open to the public, and the agenda reflected many of the areas of focus that require follow-up from the panel’s first meeting. Presentations from the Army Corps of Engineers, The Water Institute of the Gulf and Biedenharn Group focused on the Hydrodynamic Study, which is collecting data in the river and using models to represent conditions in the river as it is today, predicting what the river will be like in the future without diversion projects and how the construction and operation of diversion projects change the river compared to the future without the diversions. They also briefly discussed the Mississippi River Delta Management Study, expected to begin soon, which will focus on the basin-side effects of diversions and evaluate combinations of diversion projects that maximize the number of acres of wetlands built or sustained over time.

Presentations from David Lindquist from the state’s Coastal Protection and Restoration Authority (CPRA) summarized the current state of knowledge on fisheries and wildlife response to existing freshwater diversions. Craig Colten, Ph.D. from the Water Institute of the Gulf highlighted the importance of considering the influences of restoration projects on communities.

A presentation from Micaela Coner and Bob Beduhn narrowed the discussion down to the engineering and design considerations of a single project – the Mid-Barataria Diversion. Ms. Coner, CPRA, discussed the Mid-Barataria sediment diversion project within the context of the 109 Coastal Master Plan projects. Speaking to the plan’s theme of reconnecting the river with its estuaries, she described sediment diversions as the best opportunity to build, maintain and sustain land.

Dr. Robert Twilley, Louisiana State University

Dr. Robert Twilley

Dr. Robert Twilley, Louisiana State University, described how the river once built natural resource wealth: “Natural resource economies and the flooding of the river once coexisted. The wealth of fisheries, and the wealth of the river building wetlands, once coexisted. Today, there’s a conflict. Historically, the river built land during big flood events. Nature had this figured out. We’re forcing a conflict. There is a resolution to this.”

During the closing portion of the meeting, attendees had opportunities to provide comments to the Expert Panel. Mississippi River Delta Restoration Coalition leaders were among the conversation.

David Muth

David Muth, NWF

David Muth of the National Wildlife Federation urged the panel to consider the historical context of the river in addressing site-specific questions about diversions: “We have glimpses from historical record about how productive this system once was. But for the past 300 years, we have been choking off that system.”

John Lopez of the Lake Pontchartrain Basin Foundation described the coastal land loss crisis in powerful terms and underscored for a sense of urgency: “This house is on fire. Lives are at risk. We have a great scientific challenge, but we don’t have time to delay.”

More background on the Expert Panel:

During its first meeting in January, the Expert Panel was asked to focus on the topics of uncertainty – underlying natural variability and limitations in knowledge – they perceived surrounding the design and operation of major freshwater and sediment diversions. A report summarizing their findings and recommendations from that first meeting was released in February.

In this report the panel focused on identifying six areas that should be answered or considered as sediment diversions move further from idea into planning, engineering and design:

  1. Data collection is important for understanding the system as it is today and for evaluating performance of individual diversion projects.
  2. A controlled sediment diversion does not currently exist, but some information needed to understand the time scales and extent of land building that could be expected from a controlled sediment diversion can be gleaned from natural crevasses.
  3. The response of plant, fish and wildlife communities to the operation of sediment diversions should be incorporated into modeling of different scenarios, both capacity and operation, of a diversion.
  4. The potential social and economic influences of a diversion project need to be considered to minimize any potential negative impacts that can be foreseen.
  5. Planning and design of diversion projects need to be explored under present day and possible future conditions (e.g. sea level rise, changes in precipitation) to maximize project success in the very near and long-term future.
  6. Communications between planners and stakeholders to discuss the realities and limitations of any predictions is essential for project success.
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National Fish and Wildlife Foundation Announces Nearly $68 Million for Louisiana Restoration Projects

November 14, 2013 | Posted by Ryan Rastegar in 2012 Coastal Master Plan, Media Resources, Mid-Barataria Sediment Diversion, Restoration Projects

FOR IMMEDIATE RELEASE

Contact:
Erin Greeson, National Audubon Society, 503.913.8978, egreeson@audubon.org
Emily Guidry Schatzel, National Wildlife Federation, 225.253.9781, schatzele@nwf.org
Elizabeth Skree, Environmental Defense Fund, 202.553.2543, eskree@edf.org

National Fish and Wildlife Foundation Announces Nearly $68 Million for Louisiana Restoration Projects

$40.4 million dedicated to Mid-Barataria Diversion, a critical project to comprehensive coastal restoration

(New Orleans, LA – November 14, 2013) Today, leading national and local conservation and restoration organizations – Environmental Defense Fund, National Audubon Society, National Wildlife Federation, Coalition to Restore Coastal Louisiana and the Lake Pontchartrain Basin Foundation – released the following joint statement:

“We applaud the National Fish and Wildlife Foundation (NFWF), in partnership with Louisiana’s Coastal Protection and Restoration Authority, for dedicating $67.9 million to seven key barrier island and river diversion projects, including $40.4 million for the Mid-Barataria Diversion project. The Barataria Basin has one of the highest rates of land loss in the world, and this large-scale wetland restoration project is crucial to reversing that trend.

“The mid-sized Mid-Barataria sediment diversion is a key component of Louisiana’s 2012 Comprehensive Master Plan for a Sustainable Coast. The master plan is a blueprint for restoring the Mississippi River Delta and Louisiana’s coast and contains a suite of coastal restoration and protection projects. Our organizations support the full suite of restoration projects in that plan, of which the Mid-Barataria Diversion is a critical piece.

“Restoration of Louisiana’s disappearing wetlands is important not only to Louisiana but to the entire nation. Louisiana’s wetlands and waters provide one-third of the nation’s seafood, are a stopover point for migratory birds traveling the Mississippi Flyway and provide critical wildlife habitat. Projects like the Mid-Barataria Diversion can help revive Louisiana’s coastal wetlands – part of America’s largest delta – to a productive, functioning state, which provides important ecological and economic opportunities for people and wildlife. We look forward to continued work with both the National Fish and Wildlife Foundation and the State of Louisiana to implement the Mid-Barataria sediment diversion on its current timeline of being ready for construction in 2015.”

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Conservation Groups Respond to Mid-Barataria Sediment Diversion Environmental Impact Statement Launch

October 8, 2013 | Posted by Elizabeth Van Cleve in Media Resources, Mid-Barataria Sediment Diversion

FOR IMMEDIATE RELEASE

CONTACTS: Erin Greeson, National Audubon Society, 503.913.8978, egreeson@audubon.org
Emily Guidry Schatzel, National Wildlife Federation, 225.253.9781, schatzele@nwf.org
Elizabeth Skree, Environmental Defense Fund, 202.553.2543, eskree@edf.org

Conservation Groups Respond to Mid-Barataria Sediment Diversion Environmental Impact Statement Launch

Corps’ intention to conduct EIS seen as crucial step forward

(New Orleans, LA – October 8, 2013) Today, a coalition of leading national and local conservation and restoration organizations – Environmental Defense Fund, National Audubon Society, National Wildlife Federation, Coalition to Restore Coastal Louisiana and the Lake Pontchartrain Basin Foundation– released the following joint statement:

"The U.S. Army Corps of Engineers announced in last Friday’s Federal Register their intention to conduct an Environmental Impact Statement on the Mid-Barataria Sediment Diversion. The Mid-Barataria Sediment Diversion will be the first major controlled sediment diversion reconnecting the Mississippi River with its delta. It is a cornerstone of the state’s master plan for sustaining our coast.

"The Mississippi River Delta Restoration Campaign believes that launching the Environmental Impact Statement is an important step forward for the project. Given the urgency of restoring and sustaining our coast, a thorough and rigorous Draft Environmental Impact Statement should be completed by fall of 2014, with final review and permits issued by spring of 2015. We look forward to collaborating with the Corps and its state and federal partners to achieve this exciting and crucial 2015 construction goal. Our coast can’t wait. It's time to get together and get it done.”

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The Restore the Mississippi River Delta coalition is working to protect people, wildlife and jobs by reconnecting the river with its wetlands. As our region faces the crisis of threatening land loss, we offer science-based solutions through a comprehensive approach to restoration. Comprised of conservation, policy, science and outreach experts from Environmental Defense Fund, National Audubon Society, National Wildlife Federation, Coalition to Restore Coastal Louisiana and Lake Pontchartrain Basin Foundation, we are located in Houma, New Orleans and Baton Rouge, Louisiana; Washington, D.C.; and around the United States. See more at www.mississippiriverdelta.org.

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Conservation Groups Issue Statement on New Timeline for Mid-Barataria Sediment Diversion

September 20, 2013 | Posted by Elizabeth Van Cleve in Media Resources, Mid-Barataria Sediment Diversion

FOR IMMEDIATE RELEASE
CONTACTS: Erin Greeson, National Audubon Society, 503.913.8978, egreeson@audubon.org
Emily Guidry Schatzel, National Wildlife Federation, 225.253.9781, schatzele@nwf.org
Elizabeth Skree, Environmental Defense Fund, 202.553.2543, eskree@edf.org

Conservation Groups Issue Statement on New Timeline for Mid-Barataria Sediment Diversion

 (New Orleans, LA – September 20, 2013) Today, leading national and local conservation and restoration organizations Environmental Defense Fund, National Audubon Society, National Wildlife Federation, Coalition to Restore Coastal Louisiana and the Lake Pontchartrain Basin Foundation released the following joint statement:

“The Mississippi River Delta Restoration Campaign commends the Louisiana Coastal Protection and Restoration Authority (CPRA) for adopting an ambitious timeline for the Mid-Barataria Sediment Diversion. Announced at the Authority's monthly meeting in New Orleans on September 18, the state plans to complete environmental review, engineering and design documents, and permit applications and submit them to the U.S. Army Corps of Engineers by Spring 2015. Construction could begin later that year.

“The Mid-Barataria Sediment Diversion is the first major controlled sediment diversion reconnecting the Mississippi River with its delta. It is a cornerstone of the state’s master plan for sustaining our coast. CPRA’s timeline matches the urgency of our coastal land loss crisis. Funding from BP oil spill settlements makes this schedule altogether feasible.

“We know that the Army Corps of Engineers and the other federal resource agencies consider this project to be a national ecosystem restoration priority and will do everything possible to work with the State to make this schedule a reality. We look forward to collaborating with the State and its federal partners to achieve this exciting and crucial 2015 construction goal. Our coast can’t wait. It's time to get together and get it done.”

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The Next 50 Years: Louisiana Coastal Area projects in the master plan

July 12, 2012 | Posted by Delta Dispatches in Coastal Master Plan series, Louisiana Coastal Area (LCA), Mid-Barataria Sediment Diversion, Mississippi River Gulf Outlet, Restoration Projects, Whites Ditch

This is the fourth post in our "The Next 50 Years" Coastal Master Plan series. Check back as we continue diving into the master plan and what it means for the people and environment of the Mississippi River Delta.

By Alisha A. Renfro, Ph.D., Staff Scientist, National Wildlife Federation

To formulate Louisiana’s 2012 Coastal Master Plan, coastal authorities evaluated nearly 250 restoration projects that had been proposed in previous parish- and state-level restoration plans. This number was then narrowed down by setting a realistically achievable budget, modeling for future environmental conditions and understanding how the implementation of individual projects could help sustain or build land over the next 50 years. Projects included in the Louisiana Coastal Area (LCA) Comprehensive Study were among those considered for inclusion in the master plan, and many of these projects – or similar versions of them – were included in the 2012 Coastal Master Plan. By incorporating these projects in the long-term vision of restoration for coastal Louisiana, these projects will be better integrated with others in the master plan. Additionally, inclusion of these LCA projects shows the state’s commitment to their construction and implementation.

The LCA Program was authorized through the 2007 Water Resources Development Act and includes 15 near-term critical restoration projects. As part of the LCA Program, the state of Louisiana and the U.S. Army Corps of Engineers work together to plan and implement these 15 projects. To date, construction has not begun on any of these projects, and as they near the construction phase, the lack of federal funding in the immediate future threatens to delays them indefinitely. That is, until Congress passed the RESTORE Act in June. Signed into law just last week, the RESTORE Act will ensure that 80 percent of the Clean Water Act fines BP and other responsible parties will pay as a result of the 2010 gulf oil spill are dedicated to environmental restoration in the gulf states. In Louisiana, this money will be used to help fund the restoration projects outlined in the master plan.

Of the 15 LCA projects, nine were included in the 2012 Coastal Master Plan. But in many cases, the project selected and described in the master plan is a modified version of the original LCA project. This is a result of the analysis conducted in the planning process that indicated that modifications to the project would increase the land it built or maintained. However, it should be noted that the projects described in the master plan are still conceptual, as their exact size and location will be determined through further planning and design. Below is a list of the LCA projects and a brief description of the corresponding project included in the master plan.

The extensive analysis that went into formulating the master plan indicates that the capacity of several of the LCA sediment diversions may need to be scaled up in order to maximize the amount of land they can build and sustain. By including so many LCA projects in the plan, coastal authorities reaffirmed the importance of these critical projects to restoring the coastal Louisiana landscape. Moving away from smaller restoration projects toward larger ecosystem-scale projects will help restore the natural hydrology and mimic the processes that built the Mississippi River Delta, thus creating a more sustainable coastline for the people who call the region home.

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Take action: Help protect Louisiana's coast

May 15, 2012 | Posted by Elizabeth Van Cleve in 2012 Coastal Master Plan, Army Corps of Engineers, BP Oil Disaster, Diversions, Mid-Barataria Sediment Diversion, Restoration Projects

By Elizabeth Skree, Environmental Defense Fund

The Myrtle Grove sediment diversion is a linchpin of Louisiana's groundbreaking plan to restore the coast and repair damage inflicted by the BP oil disaster. However, the State and the U.S. Army Corps of Engineers are considering permits for the construction of a massive coal export terminal right next to this critical restoration project. Allowing these permits to proceed could stop the Myrtle Grove project in its tracks.

RAM Terminal, LLC has recently applied for permission to locate a coal export facility immediately adjacent to the location of the Myrtle Grove sediment diversion. The proposed facility will likely have a significant impact on the water and sediment flow in the river — and would therefore impact the Myrtle Grove sediment diversion’s ability to restore the surrounding wetlands and marshes.

For a state that has lost nearly 2,000 square miles of wetlands and barrier islands, Myrtle Grove represents one of the best opportunities to build and sustain our coast. By harnessing the river’s water and sediment, Myrtle Grove can sustain coastal communities and ecosystems for decades to come. Allowing the RAM coal export facility to proceed without demonstrating that it will not have a negative effect on Myrtle Grove would set a dangerous precedent. As the Coastal Master Plan moves through the State Legislature, Louisiana and the Army Corps must make restoration a top priority.

The public has been invited to comment on the project, but the deadline is close of business today!

Louisiana residents: Please take action and tell the U.S. Army Corps of Engineers and State of Louisiana to demand proof that this coal export facility will not interfere with plans to restore our coast.

Action alerts:

Environmental Defense Fund: Take Action: Put Louisiana's Coast over Big Coal

National Wildlife Federation: Defend Habitat Restoration for Brown Pelicans

Since the 1930s, Louisiana has lost almost 2,000 square miles of coastal wetlands and barrier islands. Not only are these vital for species such as the brown pelican, they provide critical hurricane protections for Louisiana’s coastal residents. Louisiana's 2012 Coastal Master Plan estimates that restoration projects like the one at Myrtle Grove will create as many as 800 square miles of new healthy coastal habitats for pelicans and other wildlife over the next 50 years.

Take action and tell the State of Louisiana and U.S. Army Corps of Engineers that restoring the coast is a national priority and should not be blocked due to a new coal facility.

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