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Mid-Basin Sediment Diversion Program
C O A S TA L P R O T E C T I O N A N D R E S T O R AT I O N A U T H O R I T Y
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 2
Coastal Protection and Restoration AuthoritySingle state entity with authority to articulate a clear statement of priorities to achieve comprehensive coastal protection for Louisiana.
Mandate is to develop, implement, and enforce a comprehensive coastal protection and restoration master plan.
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 3
Louisiana’s Land LossSINCE 1932
square miles2,006
LAND LOST LAND GAINED
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 4
What We Stand To LoseYEAR 50
square miles4,200
LAND LOST LAND GAINED
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 5
What We Stand To LoseSINCE 1932 + YEAR 50
square miles6,206
LAND LOST LAND GAINED
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 6
Why are we in this predicament?THE GREAT FLOOD OF 1927
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 7
total funding$50BCoastal Master Plan
$0
$5
$10
$15
$20
BARRIER ISLANDRESTORATION
HYDROLOGICRESTORATION
MARSH CREATION RIDGERESTORATION
SEDIMENTDIVERSION
SHORELINEPROTECTION
STRUCTURAL NONSTRUCTURAL
BILL
IONS
RISK REDUCTION
$25BRESTORATION
$25B
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 8
Coastal Master Plan
SEDIMENT DELIVERY
$23.8BDREDGING
79%
DIVERSIONS
21%
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 99
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1010
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1111
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1212
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1313
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1414
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1515
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1616
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 1717
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 18
SEDIMENTWASTED
SEDIMENTWASTED
Reconnecting the River
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 19
ACCESS TO SEDIMENT, NUTRIENTS,
AND FRESHWATER
NO ACCESS TO SEDIMENT, NUTRIENTS,
AND FRESHWATER
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 20
Reconnecting the River
MID-BARATARIA
MID-BRETON
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 21
MAXIMIZEDIVERTED SEDIMENT
MINIMIZEDIVERTED WATER Sediment
DiversionsBuild and sustain land
Increase nutrients and sediment deposition to sustain and maintain wetlands
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C P R A M I D - B A S I N S E D I M E N T D I V E R S I O N P R O G R A M
22
Land BuildingCapabilities
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 23
PROVEN SUCCESS
Fort St. Philip
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 24
PROVEN SUCCESS
Davis PondMARCH 2008 APRIL 2016
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 25
PROVEN SUCCESS
Pivach Cut2013 2014 2016
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 26
Land Building• Land Gained and
Sustained
• Year 10
• 1.5 SLR
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 27
Land Building• Land Gained and
Sustained
• Year 20
• 1.5 SLR
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 28
Land Building• Land Gained and
Sustained
• Year 40
• 1.5 SLR
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 29
Marsh Creation Comparison
PROPOSED MID-BARATARIA PROJECT SITE LAND GAINED AND SUSTAINED MARSH CREATION PROJECT
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C P R A M I D - B A S I N S E D I M E N T D I V E R S I O N P R O G R A M
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Permitting & Program Process
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 31
CPRA Submits Joint Permit Application
• Coastal Use Permit (Section 10/404)
• Request to Alter a Federal Project (Section 408)
Public Scoping Meeting
USACE Develops Draft Environmental Impact Statement
(DEIS)
Public Comment Period
EIS revisions based on Public Comment
USACE develops Final Environmental Impact Statement
(FEIS)
Final Public Review
USACE Record of Decision
PROJECT ENGINEERING & DESIGN
FEDERAL PERMITTING PROCESS
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 32
Start PermittingCoastal Use (LDNR), Navigation, and Wetlands
• Section 10 (USACE Navigation)/404 (USACE Wetlands) and Coastal Use Permit (INDR CUP)
• Permit Public Notice and Comment• Coastal Use Permit• Coastal Use Permit Public Act
Notice and Comment• Coastal Use Permit Approval• Section 10/404 Approval• Project Implementation and
Monitoring
Start EISNational Environmental Policy Act
• Solicitation of Views• Notice of Intent for EIS• Start EIS• Public scoping meeting• Draft EIS• USACE (HQ/MVD) Approves Draft
EIS for Release• Public Comment on Draft EIS• Final EIS• Public Review on Final EIS• Complete EIS (Record of
Decision)
408 Approval (USACE)Request To Alter A Federal Project Or Project With Federal Interest No Direct Public Involvement
• 408 Request• 60% Plans and Specifications Review
- District – PDT- Agency Technical Review (ATR)- IEPR-SAR Review
• USACE (HQ/MVD) Preliminary 408 Approval
• Record of Decision (408)• 408 Approval• 408 Construction Oversight
Permitting and Construction Approvals
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 33
• Aesthetic and Visual Resources• Air Quality• Aquatic Resources• Terrestrial Resources• Commercial Fisheries (industry impacts)• Cultural Resources• Environmental Justice (EJ)• Essential Fish Habitat (EFH)• Groundwater• Land Use• Marine Mammals• Navigation (deep draft and tows)
• Noise• Oil and gas resources• Prime Farmland• Public Safety (Flood Risk Reduction)• Recreation (including fishing)• Soils/Sediment (River and Basin)• Socioeconomic (population, tax revenue,
housing, etc.)• Storm Surge/Flooding• Threatened and Endangered Species (T&E)• Water Quality (salinity/nutrients)• Wetlands and Waters of the U.S.
EIS Progress Impact Analyses
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C P R A M I D - B A S I N S E D I M E N T D I V E R S I O N P R O G R A M
34
Mid-Barataria Sediment Diversion
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 35
LOCATION
TASKS
PROJECT DETAILS
PROJECT FEATURES
E&D FUNDING
• Funding E&D, Construction• Permitting and Construction Approvals• Environmental (EIS)• Land Rights• Engineering and Design• Operations
• Inlet, Conveyance Structure, Outlet• Interior Drainage Modifications• Highway Modifications• Railroad Modifications
• Inlet: Elev. -40 feet• Width: 1,600 foot Corridor• Length: Approx. 2 miles• Capacity: est. up to 75,000 cfs
Ironton, LA NFWF
MID-BARATARIA SEDIMENT DIVERSION
Project Location
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 36
PROPOSED PUMP STATION
WILKINSON CANALPUMP STATION
PROPOSED DROP STRUCTURE
PROPOSEDR.R.
ALIGNMENT
PROPOSEDLA 23 BRIDGE
MID-BARATARIA SEDIMENT DIVERSION
Project Location
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MISSISSIPPIRIVER LEVEE
INTAKE ARMORING
RAILROAD ACCESS BRIDGE
ADMIN & MAINTENANCE BLDGSGATED STRUCTURE
HWY 23 BRIDGE CHANNEL GUIDE LEVEES
OUTFALL TRANSITION
BARATARIA BASIN
MBSD CHANNELFLOW DIRECTION
U-FRAME INTAKE STRUCTUREU-FRAME TRAINING WALLS
MISSISSIPPI RIVER
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 38
DATA COLLECTION
Geotechnical Borings, Pump Tests, and Field Consolidation Tests
PHYSICAL MODELING EFFORTS
ENGINEERING & DESIGN: 30% DESIGN
SITE LAYOUT COORDINATION
OUTREACH & ENGAGEMENT
MID-BARATARIA SEDIMENT DIVERSION
Ongoing Efforts
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 39
Next Steps
EIS• USACE & other federal agencies will analyze
impacts using best available science and data
• Continued coordination with communities and stakeholders
• Refine operational controls, adaptive management plan, and mitigation strategies
• Coordinate with USACE and federal family on the project’s impact analysis avoid, minimize, mitigate any significant impacts
Engineering and DesignProgressing from 30% to 60% design effort
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 40
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C P R A M I D - B A S I N S E D I M E N T D I V E R S I O N P R O G R A M
41
Mid-Breton Sediment Diversion
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 42
LOCATION
TASKS
PROJECT DETAILS
PROJECT FEATURES
E&D FUNDING
• Funding E&D, Construction• Permitting and Construction Approvals• Environmental (EIS)• Land Rights• Engineering and Design• Operations
• Inlet, Conveyance Structure, Outlet• Interior Drainage Modifications• Highway Relocation
• Inlet: Elev. -20 to -35 feet• Width: 1,400-foot Corridor• Length: Approx. 0.5 miles• Capacity: est. up to 75,000 cfs
River Mile 68 WILL’S POINT /BERTRANDVILLE, LA NFWF
MID-BRETON SEDIMENT DIVERSION
Project Location
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 43
NON-FEDERAL LEVEE
MISSISSIPPI RIVERAND TRIBUTARIES
LEVEE
MID-BRETON SEDIMENT DIVERSION
Project Location
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 44
MID-BRETON SEDIMENT DIVERSION
Project Features
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 45
RIVER SEDIMENT/BASIN SAMPLING
ENGINEERING & DESIGN – 15 % EFFORT
PHYSICAL MODEL TESTING
OUTREACH & ENGAGEMENT
MID-BRETON SEDIMENT DIVERSION
Ongoing Efforts
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 46
Next Steps
EIS• Scoping meetings scheduled for early 2020
• Continued coordination with communities and stakeholders
• Refine operational controls, adaptive management plan, and mitigation strategies
Engineering and DesignProgressing from 15% to 30% design effort
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 47
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C P R A M I D - B A S I N S E D I M E N T D I V E R S I O N P R O G R A M
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Outreach & Engagement
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 49
Outreach & Engagement
JEAN LAFITTE
VIOLET
PORT SULPHUR
BELLE CHASSE
EMPIRE
IRONTON
PORT FOURCHON
DAVANT
BURAS
SAINT BERNARD
CHALMETTE
AVONDALE
BATON ROUGE
GRAND ISLE
MANDEVILLE
HOUMA
NEW ORLEANS
DULAC
BRAITHWAITE
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COAST AL PROT ECT ION AND REST ORAT ION AU T HORIT Y / MID-B ASIN SEDIMENT DIVERSION PROGRAM 50
SEDIMENT DIVERSION PROGRAM
Outreach & Engagement
ELECTED & PARISH OFFICIALS
SEAFOOD INDUSTRY
RECREATION INDUSTRY
COMMUNITIES NEAR PROJECT SITES
NGO, NONPROFIT, AND STAKEHOLDER GROUPS
GENERAL PUBLIC
195 MEETINGS8,000
STAKEHOLDERS REACHED
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THANK YOU