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LCA Mississippi River Hydrodynamic and Delta Management Study (MRHDM)

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LCA Mississippi River Hydrodynamic and Delta Management Study (MRHDM). October 5, 2011. LCA 2004 Main Report. The MRHDM study is comprised of two large-scale initiatives for the Mississippi River that were outlined in the USACE 2004 LCA report:. Mississippi River Hydrodynamic Study (MRH)

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lca 2004 main report
LCA 2004 Main Report

The MRHDM study is comprised of two large-scale initiatives for the Mississippi River that were outlined in the USACE 2004 LCA report:

  • Mississippi River Hydrodynamic Study (MRH)
  • Mississippi River Delta Management Study (DM)
authorization
Authorization

The study is authorized under Section 7003 of the Water Resource Development Act (WRDA) 2007 (Public Law 110-114)

mrhdm goal
MRHDM Goal
  • Employ a comprehensive approach of investigating existing water and sediment resources in the Mississippi River available for coastal protection and restoration.
hydrodynamic objectives
Hydrodynamic Objectives
  • Design models that:
  • Have the ability and flexibility to model current Lower Mississippi River conditions,
  • Evaluate ecosystem restoration alternatives in concert with dynamic flood risk management and navigation,
  • Evaluate multipurpose management scenarios of the river,
  • Evaluate the dynamic system (specifically how changes to sea level rise, subsidence, navigation, and flood risk management would affect potential restoration alternatives.)
delta management objectives
Delta Management Objectives
  • Formulate alternatives that:
  • Consider multi-use and multi-purpose projects that involve ecosystem restoration, flood risk management, and navigation.
  • Arrive at a long term multipurpose project that is sustainable and meets the needs of the Nation.
      • This could mean changing currently authorized project purposes in the interest of arriving at a multipurpose plan that appropriately balances ecosystem, navigation, and flood risk management needs and purposes.
hydrodynamic tasks
Hydrodynamic Tasks
  • Data collection and management
  • Geomorphic analysis
  • Development of new small scale physical model
  • Development of 1D model of the Mississippi River
  • Development of
  • multi-dimensional models
delta management tasks
Delta Management Tasks
  • Compilation of existing information
  • Document existing conditions and
  • forecast future conditions
  • Ecological modeling to compare
  • impacts to biological resources
  • NEPA documentation
  • Restoration projects will be heavily guided by the State of Louisiana 2012 Master Plan.
next steps
Next Steps
  • 6 and 12 month timelines including identification of tasks and potential team members
  • Team Kickoff Meeting soon (Fall 2011)
  • Preparing for Scoping Meetings (Summer 2012)
  • Developing Data Collection and Management Plan (2012-2014)
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