HQUSACE Overview on Systems Approach

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HQUSACE Overview on Systems Approach

• Zoltan L. Montvai, P.E.
• Deputy Chief, Mississippi Valley Division
• Regional Integration Team
• Directorate of Civil Works

• April 2, 2008

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STORMS KNOW NO BOUNDARIES
Katrina
Rita
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Approximately 510 amAugust 29, 2005
Plaquemines Levee Design Grade 15 17
Downstream Plaquemines Levees Overwhelmed
Eye of the Storm
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Approximately 710 amAugust 29, 2005
St. Bernard Levee Design Grade 17.5
Water overwhelming St. Bernard and New Orleans
East levees
Eye of the Storm
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Approximately 810 amAugust 29, 2005
IHNC Floodwall Design Grade 13 -16
Eye of the Storm
IHNC floodwalls overwhelmed
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Approximately 1010 amAugust 29, 2005
Eye of the Storm
Storm moves inland while battering Mississippi
Gulf Coast
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New Orleans, Louisiana
Bay St. Louis, Mississippi
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• LaCPR Congressional Direction
• Comprehensive hurricane protection analysis and
  design
• Full range of flood control, coastal restoration,
  and hurricane protection measures
• Storm surge equivalent to a Cat 5 hurricane
• Exclusive of normal policy considerations
• Reports on component areas for authorization as
  soon as practicable
• Close Collaboration with state of Louisiana
• Mississippi River Gulf Outlet (MRGO) LaCPR spin
  off to de-authorize MRGO

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• MsCIP Congressional Direction
• Comprehensive Plan to Address
• Hurricane and Storm Damage Reduction
• Salt Water Intrusion
• Shoreline Erosion
• Fish and Wildlife Preservation
• Other Water Related Resource Projects
• Cost Effective Projects in lieu of
• NED benefits
• No Incremental Benefit-Cost Analysis
• 6 month interim and 24 month comprehensive report
  requirements

Studies related to the consequences of the 2005
hurricanes
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• Approaching LaCPR and MsCIP
• from a
• Systems Perspective

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1 Define the Problems and Objectives
2 Gather Data to Define the Existing and
Probable Future Conditions
3 Formulate Alternative Plans

• Create Measures
• that accomplish
• Objectives
• Combine to
• form Plans
• Reformulate
• Alternative Plans
• to make more effective

• Public Input
• Site Visits
• Stakeholder
• Visions

• Aerial Photos
• Surveys
• Soil Borings
• Structure
• Inventory

4 Evaluate Each Alternative
5 Compare the Plans
6 Select Best Plan(s) to Reduce Risk

• Look at effects
• across plans
• Cost Effective
• Risk Informed
• Decision
• Framework

• Environmental
• Economic Benefits
• Social Impacts
• Risk Informed Decision Framework

• Study Team Findings
• Public / Agency Reviews
• Congress Makes Decision

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• Approaching LaCPR and MsCIP from a Systems
  Perspective

System-Wide Base Conditions
LACPR Formulation and Evaluation of Alternatives
MSCIP Formulation and Evaluation of
Alternatives
Systems Analysis
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Example LaCPR EB Barrier
Conditions
SWL 400 Year Return - NAVD88 2004.65 Feet
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LaCPR Current Status

• Draft Technical Report Under External Peer Review
  by NAS
• Describes the storm threats facing coastal
  Louisiana.
• Describes alternative combinations of coastal,
  non-structural, and structural measures that
  could be implemented to reduce these threats.
• Evaluation of these alternative plans using
  metrics.
• Describes of tradeoffs between these different
  alternative plans.
• Initial stakeholder metric weights
• Ranked plans using
• Performance against LACPR objectives
• Multi-Criteria Decision Analysis (MCDA)
• Legislative directive Category 5 hurricanes
• Completing Systems Analysis

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MsCIP Current Status

• Fifteen Interim Projects
• Fully funded
• Engineering and Design
• Summary Statistics
• Restore 35 miles of beach and dune habitat
• Protect/enhance 3300 acres of coastal wetlands
• Restore 2 ½ miles of seawall systems
• Restore flood storage capacity and circulation in
  11miles of streams/canals
• Potential reduction in storm damage to over
  41,000 structures
• Provide 11 million in annual recreation benefits

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MSCIP Current Status

• Draft Comprehensive Report Under Policy Review by
  Headquarters
• Describes the storm threats facing coastal
  Mississippi.
• Describes alternative combinations of coastal,
  non-structural, and structural measures that
  could be implemented to reduce these threats.
• Evaluation of these alternative plans using
  metrics.
• Describes of tradeoffs between these different
  alternative plans.
• Initial stakeholder metric weights
• Near term and long term recommendations
• Completing Systems Analysis

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Challenges

• Multiple purpose, multiple objective
• Risk-based regional integrated systems impact
  analysis
• Multiple future scenarios for evaluation
• Complex evaluation criteria/considerations
• Modeling needs to assist in formulation

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Questions?