integrated ecosystem restoration and hurricane protection: louisiana’s comprehensive master plan...
TRANSCRIPT
Integrated Ecosystem Restoration and Hurricane Protection:
Louisiana’s Comprehensive Master Plan for a Sustainable Coast
Agenda
• Coastal Louisiana is unique.
• The Master Plan is Louisiana’s framework for sustainability.
• The Master Plan is comprehensive and innovative.
• The Master Plan is unprecedented.
Coastal Louisiana is unique.
Landscape at Risk
Assets at Risk
• Largest fishery in Lower 48 States• A significant role in reducing hypoxia problems in
the northern Gulf of Mexico• Nearly one-third of the nation’s oil and gas
supply originates or is transported through coastal Louisiana
• Connected to nearly 50% of nation’s refining capacity
• Largest port complex (by tonnage) in the world
Communities at Risk• At risk from a storm that has a 1% chance
of occurring in any given year:– Over 430,000 residences– Potential economic consequences of $34
billion coastwide
• At risk from a storm that has a 0.2% chance of occurring in any given year :– Over 871,000 residences– Potential economic consequences of $157
billion coastwide
The Master Plan is Louisiana’s framework for
sustainability.
"Scene at the Signing of the Constitution of the United States" by artist Howard Chandler Christy
Reduce Risk to Economic Assets
Courtesy of Shirley Laska, CHART, UNO
Courtesy of USACE
Restore Sustainability to the Coastal Ecosystem
Caernarvon Diversion
Clay deposition on organic marsh surface
Maintain a Diverse Array Habitats for Fish and Wildlife
Sustain Louisiana’s Unique Heritage and Culture
Scott Russell
Scott Russell
Technically Sound, Publicly Acceptable
• Maximized use of available information by partnering with other planning efforts– USACE– Louisiana Recovery Authority
• Incorporated findings of technical evaluations of system performance.
• Provided opportunities for intense stakeholder and public engagement
• Incorporated rigorous scientific and technical participation and review– Interdisciplinary Technical Team– Science and Engineering Review Team– Louisiana Coastal Area Science Board
The Master Plan is comprehensive and innovative.
Technical Challenges• Climate Change
– Sea level rise– Changes in rainfall patterns
• Integrating hurricane protection systems into a sustainable landscape
• Combined effects of multiple river diversions• Functionality of marsh restoration using dredged
material• Sediment availability for wetland restoration and
hurricane protection systems• Nutrient concentrations in the Mississippi River
Restoring Sustainability to the Coastal Landscape
• Maximizing use of the Mississippi River and its resources– Restoration of system hydrology – Land-building diversions – Land-sustaining diversions
Restoring Sustainability to the Coastal Landscape
• Sustaining critical landforms– Hydrologic control of navigation channels– Marsh restoration with dredged material– Barrier shoreline restoration– Ridge habitat restoration– Shoreline stabilization
Sustainable Restoration:Delta Plain
Sustainable Restoration:Chenier Plain
Reduce Risk to Communities
• Restored ecosystem• Non-structural measures
– Elevated homes and businesses– Improved building codes– Evacuation planning – Land-use planning– Hazard mitigation plan implementation– Insurance
• Levees and flood gates
Modification of Existing Levees:Plaquemines Parish
Feasibility Study Complete:Morganza to the Gulf
Feasibility Study In Progress:Donaldsonville to the Gulf
Reconnaissance Study Complete:Southwest Coastal Louisiana
Included in LACPR:Lake Pontchartrain Barrier Plan
Other Important Plan Elements• Outlines the Louisiana Applied Coastal
Engineering and Science Program• Recommends key changes to policy and
legislation– Land use planning– Land rights acquisition– State government structure
• Outlines an adaptive management strategy
The Master Plan is unprecedented.
Unanimous approval by the Coastal Protection and Restoration Authority
and the Louisiana Legislature
First Place Gulf Guardian Award from EPA’s Gulf of Mexico Program
www.lacpra.org