name of levee segment
DESCRIPTION
Presenter Name Presenter Title Duty Location Date of Presentation. Name of Levee Segment. Levee Overview. USACE District Name of Segment Identify Segments relationship to Levee System (Does Segment = System, or is it only a part of a bigger system.) Segment ID from NLD - PowerPoint PPT PresentationTRANSCRIPT
US Army Corps of Engineers
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Name of Levee Segment
Presenter Name
Presenter Title
Duty Location
Date of Presentation
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Levee Overview USACE District Name of Segment Identify Segments relationship to Levee System (Does
Segment = System, or is it only a part of a bigger system.)
Segment ID from NLD Name of water course/river/creek Authorization / Project Identity of Owner Operator Dates of Construction Type of Presentation- MSC/National QA/SOG
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Location Map/Overview
Label state, region, major cities. Identify critical infrastructure or special
environmental concerns.
In Notes: Add details of location, length, description of protected area (rural/urban/industrial).
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Vicinity/Segment Map
Figure with protected area polygon overlaid on google map/Corpsmap.
Identify location and number of embankment sections, floodwalls, pump stations, major culverts / penetrations, and protected area # of closures. [levee – brown line, floodwall – black line, pump station or culvert – orange dot,
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Geomorphology / Foundation Geology
Present typical foundation / subsurface conditions in longitudinal profile and or cross section.
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Typical Sections
Embankments, floodwalls, major culverts and other pertinent features
Label height, crest/top width, slope angles, drainage features, seepage barriers/cut off walls, etc
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Summarize Hydraulics
Frequency top of levee/floodwall or show on typical sections
Frequency toe of levee/floodwall or show on typical sections
Identify frequency of event that results in poor performance/history of problems
Summarize loading history – flood of record plus other major flood events
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Performance History
On Segment Map show area/ reaches with major seepage, boils, instability, flood fighting, overtopping, erosion, etc.
Indicate % of height of the levee / floodwall/culvert at which problems start to occur.
May be able to capture some or all of this information on previous slide otherwise show it here
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ICW Ratings
Include date of Inspection, date of Screening and who performed these tasks (AE/Corps/Others)
Short summary of ICW inspection and any issues noted
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Review of Assessment Ratings
Review/Compare ICW Rating with LST Rating in Table format
Highlight LST ratings that are M or U.
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Major Contributors to Overall Risk Rating
Focus discussion on selected items that were deemed Unsatisfactory and that are major contributors to the overall risk / rating. Include enough background data/documentation, and justification to make the case. Provide photos as additional slides that support the rating.
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Example: Culverts/Closure
If multiple culverts/closures are associated with project, the logic behind which one was rated should be provided by the LST Facilitator
Embankment culvert selected and why * What was used to assess the culvert? Existing
condition, supplemental tool, etc… Floodwall culvert selected and why * What was used to assess the culvert? Existing
condition, supplemental tool, etc…
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Consequence Data Summary
Weighted Fatality Rate Threatened Population without warning Estimated Loss of Life without warning Number of structures Inundated Weighted economic damage factor Economic Damages Critical Infrastructure / Environments
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Emergency Preparedness
Evacuation Planning Community Awareness Flood Warning Effectiveness
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Plot Results LOL and Economics
National Roll-up Only Slide
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LSAC Rating Adjustments
National Rollup slide only Reasons to adjust LSAC rating