Document Type



Virginia Institute of Marine Science

Publication Date



Special Reports in Applied Marine Science and Ocean Engineering (SRAMSOE) No. 468


The City of Norfolk and Norfolk District, U.S. Army Corps of Engineers (USACE), are partnering to conduct a Coastal Storm Risk Management Study (CSRM) study to determine the Federal interest and feasibility of alternatives to mitigate coastal flooding risk in the City. The CSRM is in the Feasibility Study (FS) phase in which alternatives are proposed and developed to conceptual/preliminary design level, benefit/cost analyses are conducted, and environmental studies are completed to comply with the National Environmental Policy Act (NEPA). The magnitude of the feasibility study will require an Environmental Impact Statement (EIS).

A component of the FS/EIS is the analysis of expected impacts of certain proposed alternatives on tidal circulation and water quality in four water bodies within the City, which include Broad Creek, Hague (Smith Creek), the Lafayette River, and Pretty Lake. The purpose of the modeling is to support the determination of whether the proposed alternatives will have significant impacts on circulation and water quality condition of the waterbodies, and if so, to what degree and what potential mitigation actions may be applied/required.

Virginia Institute of Marine Science (VIMS) assisted the City of Norfolk and Norfolk District, U.S. Army Corps of Engineers to conduct the model study in 2018. This report documents the modeling efforts to provide information for assessing the impact of floodgates inside Lafayette River, a tributary of the Elizabeth River, on the changes in water quality condition.


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Oceanography Commons



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