Update on the HEC-RAS Reservoir Transport Simulation Mike Langland and Ed Koerkle 03/30/2012.

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Presentation transcript:

Update on the HEC-RAS Reservoir Transport Simulation Mike Langland and Ed Koerkle 03/30/2012

Sediment Input Data Model Geometry and Hydraulics Model Sediment Transport Topics

Susquehanna River Reservoirs

Transport Curves

Particle Size Transport (Conowingo) 391 samples % sand/fines 16 samples % sand/silt/clay Missing data ?

Model Geometry and Hydraulics

Boundary and USGS transect data PA MD Marietta Gaging Site Safe Harbor Dam Conowingo Dam Holdwood Dam Conestoga River Pequea Creek Muddy Run Broad Creek

Marietta Gaging Site Safe Harbor Dam Conowingo Dam Holdwood Dam Conestoga River Pequea Creek Muddy Run Broad Creek With FEMA adds PA MD

Add Lidar

Elevation Discrepancies

Sediment Transport Simulation Progress limited Calibrate one “average” flow year (no scour) and a high flow event (Sept 2011) Bed sediment particle size distribution and shear stress

Summary Model Geometry and Hydraulics nearly complete Issue with GeoRAS resolved (max # of transect points) On schedule to have HEC-RAS model completed by June, 2012.

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