San Juan Bay
Hydrodynamic-Water Quality Model
Type: Condition
of habitat and sources affecting habitat (i.e., the condition or functionality
of the habitat) and stressors affecting habitat (i.e., which sources
have contributed to its degradation and whether they are direct or indirect
factors).
Category: Submerged
Cost: $985,000
Description: A three-dimensional hydrodynamic and water quality model
study of the San Juan Bay Estuary system was conducted to evaluate the effectiveness
of various management alternatives for improving water quality. Alternatives
included methods to increase flushing, reduce pollutant loadings, and combinations
of the two. The CH3D-WES hydrodynamic model and the CE-QUAL-ICM water quality
model were employed in the study. The models were indirectly coupled and were
adjusted and calibrated against data collected during the summer of 1995.
Outcome: Analysis of various management scenarious such as the placement
of tide gates, revealed that a combination of widening and deepening of a channel,
filling of dredged submerged borrow pits and removal of un-sewered loads provided
the greatest water quality benefits.
Contact: Dr. Mark S. Dortch, USACE Waterways Experiment Station, Mark.S.Dortch@usace.army.mil
Citation: Bunch, B. W. et al, 2000. Hydrodynamic and Water Quality
Model Study of San Juan Bay Estuary. ERDC TC-00-1. US Army Engineer and
Research Development Center, Vicksburg, MS. Available at: http://www.wes.army.mil/el/elpubs/genrep.html
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