Simulating the Influence of Conowingo Dam Infill on Chesapeake Bay Water Quality

Session Date: June 1st 2016

Session Time: 1:00

Session Lead: Lewis Linker

Session Co-Lead(s): Rich Batiuk, Robert Hirsch, and Carl Cerco

Session Abstract:

The Conowingo Reservoir has been filling in with sediment for almost a century.  Over most of that period the Conowingo has acted like a management practice that has removed a portion of the Susquehanna sediment and nutrient loads, but it is a practice that is losing its effectiveness.  The infill of the Conowingo Reservoir results in increased sediment and associated nutrient loads delivered to Chesapeake Bay and creates a challenge in meeting the Chesapeake Bay water quality standards.  This session will review the latest modeling and research on Conowingo infill conducted to support 2017 Midpoint Assessment decisions on Conowingo infill impacts on the Chesapeake Total Maximum Daily Load (TMDL).


Time Title
1:00 Temporal Changes in Net Deposition of Sediment and Nutrients behind Conowingo Dam under Different Flow Conditions: Statistical Evaluation of Monitoring Data between 1987 and 2013 - Qian Zhang - Johns Hopkins University, Department of Geography and Environmental Engineering
1:20 Modeling sediment trapping in the Lower Susquehanna River Reservoir System: a simple approach to capture long-term performance trends - -
1:40 Simulating Sediment Transport in the Lower Susquehanna River - Lake Clarke and Lake Aldred - Marty Teal - WEST Consultants, Inc.
2:00 Spatial and Temporal Patterns of Sedimentation in Conowingo Reservoir - Cindy Palinkas - UMCES Horn Point Lab
2:20 Biogeochemistry of Conowingo Reservoir - -
3:00 Development of a Nutrient Mass Balance Model for the Conowingo Pond - jim fitzpatrick - HDR, Inc.
3:20 Impacts on Chesapeake Bay Resulting From Infill of the Conowingo Reservoir - Up-to-Date Results - Carl Cerco - US Army ERDC
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