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Title: Evaluation of the potential impacts of the proposed Mobile Harbor navigation channel expansion on the aquatic resources of Mobile Bay, Alabama
Authors: Berkowitz, Jacob F., 1979-
Altman, Safra.
Reine, Kevin J.
Wilbur, Dara.
Kjelland, Michael E.
Gerald, Terry K.
Kim, Sung-Chan.
Piercy, Candice D.
Swannack, Todd M.
Slack, William Todd.
Killgore, K. Jack
Philley, Kevin D.
Beane, Nathan R.
Saltus, Christina L.
Balazik, Matthew T.
Keys, Tyler A.
Trahan, Corey J.
Keywords: Mobile Bay (Ala.)
Harbors--Mobile (Ala.)
Environmental management
Environmental protection
Aquatic resources
Dredging spoil
Inland navigation
Publisher: Environmental Laboratory (U.S.)
Coastal and Hydraulics Laboratory (U.S.)
Information Technology Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC TR-20-4
Abstract: This report assesses potential impacts to aquatic resources resulting from proposed navigation channel expansion activities within Mobile Bay, Alabama. This work was conducted for the U.S. Army Corps of Engineers (USACE) Mobile District, to support development of a supplemental Environmental Impact Statement. Changes in water quality and hydrodynamics were evaluated for potential impacts to benthic macroinvertebrates, wetlands, submerged aquatic vegetation, oysters, and fish. The assessment includes extensive characterization of baseline conditions, evaluation of estimated post-project conditions related to aquatic resource habitat (e.g., changes in salinity, dissolved oxygen). An analysis of potential impacts related to a 0.5-m sea level rise (SLR) scenario were also evaluated. Results suggest that no substantial impacts in aquatic resources within the study area are anticipated due to project implementation, as the area of greatest potential changes to environmental conditions are already adapted to natural shifts in salinity (and other factors), and to conditions resulting from the existing navigation channel. Although SLR has the potential to alter aquatic resource habitats with Mobile Bay, additional impacts related to project implementation remain negligible under the 0.5-m SLR scenario.
Description: Technical Report
Gov't Doc #: ERDC TR-20-4
Rights: Approved for Public Release; Distribution is Unlimited
Size: 202 pages / 19.48 MB
Types of Materials: PDF/A
Appears in Collections:Technical Report

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