Marina Flushing Along a Structurally Controlled Canal

by Paul C. -P. Lin, Coastal Technology Corp, Coral Gables, United States,

Document Type: Proceeding Paper

Part of: World Marina '91


Evaluation of flushing characteristics of a proposed marina located along a structurally controlled navigable canal is reported. This canal is operated to maintain the water level of Lake Okeechobee at upstream and flow discharge into the downstream St. Lucie River. Flushing characteristics of the marina mainly depend on the lateral shear induced by flow velocity in the canal. A simple, zero-dimensional analytical model was developed and utilized for a real time simulation of marina flushing. The model yields an exponential decrease of pollutant concentration with time. The simulation was conducted using average daily flow velocity based on three year flow discharge data collected at the control structures. The results of simulation allow design professionals to optimize the marina layout design towards maintaining good water quality within the marina.

Subject Headings: Ports and harbors | Canals | Water pollution | Flushing | Water quality | Wave velocity | Water level

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