||Galveston Bay National Estuary Program,, Austin, TX. ;Texas Univ. at Austin. Center for Research in Water Resources. ;Texas Water Resources Inst., College Station.;Environmental Protection Agency, Washington, DC.
The original stated objective of the study was to examine specifically the recent and current dredge-and-fill work associated with navigation channels and with DOA (404)-regulated projects. As noted above, the study has been expanded beyond this in both time and process. With respect to the former, physiographic alterations to the bay have been traced since the mid-Nineteenth Century to the present. With respect to the latter, both subsidence and shell dredging have been considered as well, since these factors have also effected major alterations in the bay. In our view, the proper evaluation of the impacts of dredge-and-fill activities requires an appropriate perspective, i.e. long-term alterations in the bay environment, and a consideration of all major factors affecting the physiography of the bay. However, despite the expansion in scope, the original objectives of navigation channel dredging and disposal, and 404-regulated activities, commanded the greatest portion of the project effort.