State and Regional Flood Risk Management Perspectives

Joe Hassinger, President • Stephen Estopinal, P.E., P.L.S., Vice President Louis E. Wittie, P.E., Secretary • Jefferson Angers, Treasurer • Kelly McHugh, P.E. • Tyrone Ben

Wilton P. Tilly, III, P.E. • Richard Luettich, Jr., Ph. D.• G. Paul Kemp, Ph. D.

Robert A. Turner, Jr., P.E., CFM Regional Director

Southeast Louisiana Flood Protection Authority - East

February 3, 2016

NAFSMA Agency to Agency Flood Risk Management Dialogue

Presentation Outline

Southeast Louisiana Flood Protection Authority - East

History Mission Authority and Responsibilities Challenges

Thinking and acting regionally

• Establishment of Louisiana Coastal Protection and Restoration Authority (2006) – Non Federal Sponsor on HSDRRS Projects – Development of Coastal Protection and Restoration Master

Plan – Provide oversight over coastal levee districts

• Levee Board Consolidation (2007) – Systems approach for planning, design, construction,

operating and maintaining flood risk reduction infrastructure

A New Approach to Flood Risk Management

Thinking and acting regionally

• Created by Act of Louisiana State Legislature in 2006

• Governed by a nine-member Board of Commissioners appointed by the Governor

• Focus is on “regional” flood risk management

• Oversight provided by the Louisiana Coastal Protection and Restoration Authority (CPRA)

Southeast Louisiana Flood Protection Authority - East

Thinking and acting regionally

Mission Statement – Our mission is to ensure the physical and operational integrity of the

regional flood risk management system, and to work with local, regional, state, and federal partners to plan, design, and construct projects that will reduce the probability and risk of flooding for the residents within our jurisdiction.

Southeast Louisiana Flood Protection Authority - East

Thinking and acting regionally

STATE OF LOUISIANA Office of the Governor

Coastal Protection and Restoration Authority

Southeast Louisiana Flood Protection Authority - East

East Jefferson Levee District

Orleans Levee District

Lake Borgne Basin Levee District

Southeast Louisiana Flood Protection Authority - West

Other Coastal Louisiana Levee Boards

St. Tammany Levee District

Tangipahoa Levee District

Riverine Levee Boards

Organizational Structure

Thinking and acting regionally

SLFPA-E ACTIVE LEVEE DISTRICTS

Our Partners

“Amicus certus in re incerta cernitur” (Quintus Ennius, 3rd century BC)

US Army Corps of Engineers US Coast Guard FEMA NOAA Louisiana Coastal Protection and Restoration Authority Southeast Louisiana Flood Protection Authority – West Other Louisiana Levee Boards

Thinking and acting regionally

Lake Pontchartrain

Lake Borgne

SLFPA-East Levee Systems

HSDRRS Perimeter

HSDRRS Interior

MRL

Non Federal Levees Dashed lines are outside SLFPA-E jurisdiction

Maxent Levee Bayou St. John Sector Gate

Seabrook Complex Structure

IHNC Lake Borgne Surge Barrier Complex

Caernarvon Complex Structure

Bayou Bienvenue Sector Gate

Bayou Dupre Sector Gate

Bayou Bienvenue Vertical Lift Gate

Pre-Katrina Floodwall Elevation ~ +12’ to +14’ NAVD88

HSDRRS Floodwall Elevation +32’ NAVD88

SLFPA-E Challenges Ahead

Completion of Remaining HSDRRS Projects Operation and Maintenance of HSDRRS Relative Sea Level Rise Funding

Thinking and acting regionally

Major Construction Projects Remaining

Armoring for Resiliency Permanent Outfall Canal Pump Stations and Gates

Thinking and acting regionally

Lake Pontchartrain

Lake Borgne

HSDRRS Levees

MRLS Dashed lines are outside SLFPA-E jurisdiction

HSDRRS Floodwalls

LPV 00.2

LPV 01.1

LPV 02.2

LPV 19.2 LPV 20.1

LPV 109.02a

LPV 111.01

Recommendations For Levee Lift Prior To Armoring

Traditional Operations and Maintenance Activities

– Levee Maintenance

– Vegetation Management – Embankment Repairs – Floodwall Maintenance – Floodgate Operation and Maintenance

– Public Outreach and Risk Communication

– Drainage Pump Station Operation

and Maintenance – Drainage Canal Maintenance – Fleet Maintenance – Permitting – Inspection and Monitoring

– Emergency Response and Recovery

Thinking and acting regionally

Non-Traditional Operation and Maintenance Activities

Bayou Binvenue Lift Gate

GIWW Bypass Barge Gate

GIWW Sector Gate

IHNC – LAKE BORGNE SURGE BARRIER

Project Statistics: Real Estate:

Land Purchased (191 acres: 146 of which are for mitigation)

Environmental Compliance:

NEPA compliance achieved under EA 433. FONSI signed on 24 July 2006.

Project features:

Project area broken into 3 sub-basins for appropriate reforestation and invasive species control as per existing elevations.

Water control structure at the northwestern corner of the project area to control water levels.

Chinese Tallow trees and Chinaberry to be killed with herbicides. A variety of trees and shrubs (approx. 85,000 total) planted.

Bayou Sauvage Mitigation Project Mitigation for LPV TFG

Thinking and acting regionally

Standing on a Highway- Old Paris Road- St Bernard Parish

1932 2005 1 foot rise in relative sea level

2 foot rise in relative sea level

FEMA NFIP Levee Recertification

• USACE provided initial certification of HSDRRS (Levee System Evaluation Report)

• USACE NFIP Certification expires in June 2023

• Recertification may require Surge Reanalysis

Thinking and acting regionally

Lake Pontchartrain

Surge Barrier

Seabrook Complex

West Return

LaBranche Wetlands

Central Wetlands

Bayou Sauvage NWR

Funding Challenges

Water respects no political boundaries – but money does!

Thinking and acting regionally

Southeast Louisiana Flood Protection Authority – East

Questions and Discussion

www.slfpae.com