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Status of Mardi Gras Pass, the Sundown/Eland Permit Application, and Alternative Solutions John A. Lopez, Andy Baker, Ezra Boyd, Theryn Henkel, Andreas Moshogianis, Eva Hillmann to Governor’s Coastal Advisory Commission li i l bli ib Algiers Regional PublicLibrary New Orleans, La. Tuesday February 26 2013 Tuesday February 26, 2013

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Status of Mardi Gras Pass, the Sundown/Eland Permit Application, and Alternative Solutions

John A. Lopez, Andy Baker, Ezra Boyd, Theryn Henkel, Andreas Moshogianis, Eva Hillmannp y y y g

toGovernor’s Coastal Advisory Commission 

l i i l bli ibAlgiers Regional Public LibraryNew Orleans, La. 

Tuesday February 26 2013Tuesday February 26, 2013

Bohemia Spillway Area

Mississippi River flood protection and “back” Levees

M di G PBreton Sound

Mardi Gras Pass

Bayou Lamoque

Canal re‐claimed byCanal re‐claimed by marsh accretion 

2005 CIR

A naturally recovered or re‐claimed canal: Back Levee Canal (old route) in the Bohemia Spillway near Nester Canal (view looking north). Oak trees are on the original spoil bank of the canal. The Back levee Canal was probably in‐filled by sediment deposited by early discharges  (1926 to 1940) through the Bohemia Spillway. Photograph taken February 14, 2013.p y g p y ,

Mardi Gras Pass May 5, 2012  picture by Frank Cole OCM

Reach 4

Back levee Canal 

Reach 3

Reach 2Road 

Reach 1

Mississippi River 

February 24, 2012 

Happy Birthday !!!

Last MGP discharge measurement is 2,095 cfs (2/2013) when the river was at 4.8 feet, which is 2.8 feet lower than the peak stage in 2011.   We estimate that the MGP discharge could be 5,300 cfs at maximum river stage here. 

Governor’s Coastal Advisory Commission Meeting – August 2012  Mardi Gras Pass at the Mississippi River 

63 to 79 downed trees in Reach 1 estimated June 29, 2012

April 17, 2012 Mardi Gras Pass – looking toward the river

Channel width now exceeds the tree heights and reduces bridging effect of logjamseffect of logjams

Average width of Reach 1  Jan 2013 

Turbidity follows similar patterns of increasing during river rise but appears torise, but appears to have higher sediment concentration than at the Caernarvon Diversion

Recreational Fishers in Mardi Gras Pass

State’s MGP Monitoring Plan Location of additional water level and salinity recorders (MGP H01 MGPsalinity recorders (MGP‐H01, MGP‐H02, and MGP‐H03) and accretion sites (MGP‐A01, MGP‐A02, MGP‐A03, MGP‐A04, MGP‐A05 and MGP‐A06).

Mardi Gras Pass

Lower Breton Diversion  50,000 cfs  in Approved State Master Plan cost   $220 M , 2014 Annual 

Mardi Gras Pass  Plan Design budget $2m 2014, $6 m 2015, $10 m 2016 Bohemia Mississippi River 

Reintroduction BS‐1510,000 cfs CWPPRA PPL 1710,000 cfs CWPPRA PPL 17    $10‐20M  De‐Authorized

With 4 culverts

Revised Permit Application December 2012 by Sundown 

StageTime

Head limitsFlood 5

Flood 1Flood 2

Flood 4

Flood 3

Discharge

“geomorphic limit”,  i.e. mature crevasse

StageTime

Discharge

“geomorphic limit i.e. mature crevasse”“Acceptable di h ” l

“Acceptable discharge” less

pdischarge” greater

StageTime

Discharge

PUBLIC NOTICEFebruary 14

STATE OF LOUISIANADEPARTMENT OF NATURAL RESOURCESDEPARTMENT OF NATURAL RESOURCES

OFFICE OF COASTAL MANAGEMENT DIVISIONP. O. BOX 44487

BATON ROUGE, LA 70804-4487Phone (225) 342-7943Phone (225) 342 7943

Fax (225) 342-9439Email [email protected]

CMD REVIEWER:Jesse DerocheJesse DerocheCUP NUMBER:

P20111629Interested parties are hereby notified that in accordance with LAC Title 43, Chapter 7, §723.C.6 the

Office of Coastal Management of the Department of Natural Resources received a request for aOffice of Coastal Management of the Department of Natural Resources received a request for a Public Hearing concerning the following application for a Coastal Use Permit. Interested parties are

hereby notified that a Public Hearing will be held on March 20th at 6:00 PM at the Belle Chasse Auditorium, located at 8398 Hwy. 23, in Belle Chasse.

EPA comment letter excerpt

NMFS comment letter excerpt

Issues Raised concerning the Sundown Permit

Issue:

l lMore Alternative Analysis

By:

COALITION TO RESTORE COASTAL LOUISIANAENVIRONMENTAL DEFENSE FUNDLAKE PONTCHARTRAIN BASIN FOUNDATIONNATIONAL AUDUBON SOCIETYNATIONAL AUDUBON SOCIETYNATIONAL WILDLIFE FEDERATIONTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICYNATIONAL MARINE FISHERIES SERVICENATIONAL MARINE FISHERIES SERVICEENVIRONMENTAL PROTECTION AGENCYSOUTH LOUISIANA FLOOD PROTECTION AUTHORITY ‐ EAST

Issues Raised concerning the Sundown Permit

Issue:

l f l l d h d

B

Evaluation of environmental impact including the indirect impacts 

By:COALITION TO RESTORE COASTAL LOUISIANAENVIRONMENTAL DEFENSE FUNDLAKE PONTCHARTRAIN BASIN FOUNDATIONNATIONAL AUDUBON SOCIETYNATIONAL WILDLIFE FEDERATIONTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICYTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICYNATIONAL MARINE FISHERIES SERVICEENVIRONMENTAL PROTECTION AGENCYGULF RESTORATION NETWORKGULF RESTORATION NETWORKSOUTH LOUISIANA FLOOD PROTECTION AUTHORITY ‐ EAST

Issues Raised concerning the Sundown Permit

Issue:

dd l h d l lAdditional hydrologic Analysis

By:COALITION TO RESTORE COASTAL LOUISIANACOALITION TO RESTORE COASTAL LOUISIANAENVIRONMENTAL DEFENSE FUNDLAKE PONTCHARTRAIN BASIN FOUNDATIONNATIONAL AUDUBON SOCIETYNATIONAL AUDUBON SOCIETYNATIONAL WILDLIFE FEDERATIONTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICYENVIRONMENTAL PROTECTION AGENCYSOUTH LOUISIANA FLOOD PROTECTION AUTHORITY ‐ EAST

Issues Raised concerning the Sundown Permit

Issue:

l b l b d dLegal Navigability must be determined

By:By:COALITION TO RESTORE COASTAL LOUISIANAENVIRONMENTAL DEFENSE FUNDLAKE PONTCHARTRAIN BASIN FOUNDATIONNATIONAL AUDUBON SOCIETYNATIONAL WILDLIFE FEDERATIONTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICYTULANE INSTITUTE ON WATER RESOURCES LAW AND POLICY 

Issues Raised concerning the Sundown Permit

Issue:

h lInconsistent with State Master Plan

By:By:

GULF RESTORATION NETWORKLAKE PONTCHARTRAIN BASIN FOUNDATIONLAKE PONTCHARTRAIN BASIN FOUNDATIONSOUTH LOUISIANA FLOOD PROTECTION AUTHORITY ‐ EAST

Issues Raised concerning the Sundown Permit

Issue:

h ll ll f d d fl dBohemia Spillway still functions and provides flood protection benefits

By:By:

SOUTH LOUISIANA FLOOD PROTECTION AUTHORITY ‐ EAST

Why is Mardi Gras Pass a good location for a diversion?

State Master plans recommend a diversion at virtually the same locationState Master plans recommend a diversion at virtually the same location indicating a need and an effectiveness of a diversion here

Sediment concentration is relatively high and the river bar indicates excess sediment load in the river

The Back Levee Canal effectively shunts water north and south distributing water and sediment over a large reach of the marsh adjacent to the river

Closing Mardi Gras pass in lieu of a new diversion delays benefits for years

Adaptive management if needed seems to simple and cost effectiveAdaptive management, if needed, seems to simple and cost effective

Permit Alternative Scenarios

Deny Permit and the company continues to use their existing dock

Suspend approval pending:• Navigability determination• Navigability determination• Fuller environmental analysis• Alternatives evaluated which could leave Mardi Gras Pass open• Fuller hydrologic analysisFuller hydrologic analysis• Evaluate suitability of Mardi Gras Pass as the Lower Breton Diversion

Construction of a bridgeConstruction of a bridgeConsider use of BP Early‐NRDA funding or other funding