regional sediment management and engineering with nature ... · tuttle creek reservoir...
TRANSCRIPT
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QAVG
QAVG
US Army Corps of Engineers BUILDING STRONG®
Regional Sediment Management and Engineering With Nature
Inland Working Meeting
John Shelley, Ph.D., P.E. Hydraulic Engineer River Engineering and Restoration Section Kansas City District
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Outline
Relevance of RSM/EWN to Inland Districts Working Meeting Presentations and Examples
►Missouri River ►Decision Making and Level of Detail
RSM/EWN Challenges and Opportunities Field Trip
2/30
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Poll
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Relevance to Inland Districts
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Regional Sediment Management and Engineering With Nature
Inland Working Meeting: 29 April – 1 May 2014 Linda Lillycrop Todd Bridges Dinah McComas Steve Tapp Brian Ball Meg Jonas Todd Davis Craig Fischenich Chuck Downer John Shelley Stanford Gibson Paul Boyd Aaron Byrd Katherine Touzinsky Elizabeth Bruns Heather Bishop Kevin Landwehr David Gordon
ERDC ERDC ERDC MVP LRH ERDC LRL ERDC ERDC NWK HEC NWO ERDC ERDC MVR MVR MVR MVS
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Outline
Relevance of RSM/EWN to Inland Districts Working Meeting Presentations and Examples
►Missouri River ►Decision Making and Level of Detail
RSM/EWN Challenges and Opportunities Field Trip
6/30
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Omaha District Boundary
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Sand trapped in reservoirs
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Sand needed for endangered species habitat
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Kansas and Missouri Rivers are dredged (mined) for sand and gravel
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Bed is degrading (dropping) causing a host of infrastructure problems
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Corps wants to build habitat projects and to reintroduce sediment to the river
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Missouri Clean Water Commission concerned about increasing sediment in the river-- “sediment is a pollutant” mind-set
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Missouri River Flood of 2011
14/30
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Mississippi River combats shoaling problems
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Some Other Presentations
Beneficial Use of Dredge Mat’l on the Ohio River Tuttle Creek Reservoir Sedimentation Sediment Management Needs at
Huntington District Reservoirs Rio Grande Reservoirs and Sediment
Problems
16/30
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Outline
Relevance of RSM/EWN to Inland Districts Working Meeting Presentations and Examples
►Missouri River ►Decision Making and Level of Detail
RSM/EWN Challenges and Opportunities Field Trip
17/30
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Empirical Data
Decision Making and Level of Analysis
$
$ $
Empirical Data + Regional Process-Based Models
Empirical Data + Site-specific models
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Decision Making and Level of Analysis Empirical Tools
► XS Viewer
HEC-RAS ► SIAM sediment budgeting ► Mobile-bed modeling ► BSTEM bank erosion ► Reservoir sedimentation
AdH ► Site-specific 2D and 3D sedimentation problems
GEISHA ► Full watershed sediment modeling (including
watershed BMPs, reservoirs, and rivers)
19/30
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Outline
Relevance of RSM/EWN to Inland Districts Working Meeting Presentations and Examples
►Missouri River ►Decision Making and Level of Detail
RSM/EWN Challenges and Opportunities Field Trip
20/30
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RSM-EWN Opportunities
Guidance/ Case Studies
Systematic review, lessons learned, and design guidance for river restoration, bendway weirs, and grade control projects Method for quantifying costs and benefits of (1) recharging sediments trapped behind reservoirs to the downstream channel (2) beneficial use plans that keep sediment in the river
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RSM-EWN Opportunities
Training
Create a “Planning Associates Program” for River Engineering Cover River Engineering in PROSPECT courses (some material is scattered over several other courses, other essential skills are not taught in any) Create a Reservoir Sedimentation PROSPECT course
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RSM-EWN Opportunities
Other
Create sediment management plans in advance of flood events to intelligently inform post-flood recovery efforts Sediment budgets that include fluxes to/from the floodplain Tools for automating uncertainty analysis in sediment
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RSM-EWN Challenges “Sediment is a pollutant” mindset Lack of data (baseline data, calibration data) Large systems = very expensive projects (too big for RSM) Lack of standard ways to quantify economic and environmental benefits to include in project justifications
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RSM-EWN Challenges Competing interests: Who does or does not want the sediment? Permitting process ill-suited to looking at sediment as a resource Corps lack of interest in water supply (dedicated programs, funding, research)
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Field Trip – Deer Island Shallow Water Habitat Site
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Summary
27/30
Relevance of RSM/EWN to Inland Districts Working Meeting Presentations and Examples
►Missouri River ►Decision Making and Level of Detail
RSM/EWN Challenges and Opportunities Field Trip