Effects of Levee Extension on Marsh Flooding
Publication: Journal of Water Resources Planning and Management
Volume 113, Issue 2
Abstract
Western Terrebonne Parish, a low‐lying coastal marsh with numerous meandering bayous and small lakes, is located in south‐central Louisiana. The area is frequently inundated by backwater, tidal, and headwater floodings. An extension of the existing Avoca Island levee is proposed for further providing flood protection to the area. This paper evaluates the potential changes in the hydrologic regime and the area's hydrodynamics caused by the proposed levee extension. The study area is modeled as a network of junctions and channels. Riverine and tidal boundary conditions are used as input to a watershed model that predicts the time history of water level, flow, and sediment of the area. The response of the marsh to flooding events is simulated with both existing and future conditions. The results in terms of surface water contours, current discharge patterns, and sediment concentration distributions are presented. The changes before and after the levee extension are discussed.
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References
1.
Amft, J. A., and Wang, F. C., “A Meso‐Scale Field Monitoring Technique,” Proceedings of Water Quality and Wetland Management Conference, R. J. Varnell, Ed., New Orleans, La., Aug., 1983, pp. 223–241.
2.
Ariathurai, R., MacArthur, R. C., and Krone, R. B., “Mathematical Model of Estuarial Sediment Transport,” Technical Report D‐77‐12, Waterways Experiment Station, U.S. Army Corps of Engineers, 1977.
3.
Chow, V. T., Open Channel Hydraulics, McGraw‐Hill Book Company, New York, N.Y., 1959.
4.
Environmental Characterization of Terrebonne Parish: 1955–1978, final report for Terrebonne Parish Police Jury, Coastal Environments, Inc., Baton Rouge, La., 1980.
5.
“Everglades Gaging Program, Everglades Area, Florida,” Report No. 6, U.S. Army Corps of Engineers, Jacksonville, Fla., 1956.
6.
A Feasibility Report: Environmental Impact Statement in the Atchafalaya Basin floodway System, Louisiana, Vol. I., U.S. Army Corps of Engineers, New Orleans, La., 1981.
7.
Godin, G., “Modification of River Tides by the Discharge,” Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, Vol. III, No. 2, March, 1985, pp. 257–274.
8.
Gosselink, J. G., “The Ecology of Delta Marshes of Coastal Louisiana: A Community Profile,” FWS/OBS‐84/09, U.S. Fish and Wildlife Service, U.S. Department of the Interior, Biological Sciences Program, Slidell, La., May, 1984.
9.
Gregory, K. J., and Walling, D. E., Drainage Basin Form and Process: A Geomorphological Approach, John Wiley and Sons, New York, N.Y., 1973.
10.
Mahmood, K., and Yevjevich, V. (Ed.), Unsteady Flow in Open Channels, Vol. 1, Water Resources Publications, Fort Collins, Colo., 1975.
11.
Muller, R. A., “A Synoptic Climatology for Environmental Baseline Analysis: New Orleans,” Journal of Applied Meteorology, Vol. 16, No. 1, 1977, pp. 20–33.
12.
Stages and Discharges of the Mississippi River and Tributaries and Other Watersheds in the New Orleans District, U.S. Army Corps of Engineers, New Orleans, La., 1973–1980.
13.
“Storm Water Management Model—User's Manual, Version II,” EPA—670/2‐75‐017, Environmental Protection Technology Series, U.S. Environmental Protection Agency, Cincinnati, Ohio, 1975.
14.
Wang, F. C., “The Dynamics of a River‐Bay‐Delta System,” Journal of Geophysical Research, American Geophysical Union, Vol. 84, No. 15, 1984, pp. 8054–8060.
15.
Wang, F. C., and Scarlatos, P. D., “Influences of Weather Patterns on Wetland Floodings,” Proceedings of the International Symposium on Hydrometeorology, A. I. Johnson and R. A. Clark, Eds., American Water Resources Association, Denver, Colo., June, 1982, pp. 373–379.
16.
Wang, F. C., Wei, J. S., and Amft, J. A., “Computer Simulation of Western Terrebonne Parish Marsh Hydrology and Hydrodynamics,” Sea Grant Publication, Center for Wetland Resources, Louisiana State University, Baton Rouge, La., 1985.
17.
Ward, G. H., “Marsh Enhancement by Freshwater Diversion,” Journal of Water Resources Planning and Management, ASCE, Vol. III, No. 1, Jan., 1985, pp. 1–23.
18.
Water Resources Data, Louisiana, U.S. Geological Survey and Louisiana Department of Transportation and Development, Baton Rouge, La., 1973–1984.
19.
Wei, J. S., Wang, F. C., and Amft, J. A., “Flood Estimation for an Ungaged Floodplain,” Proceedings of the International Symposium on Flood Frequency and Risk Analysis, Louisiana State University, Baton Rouge, La., (in press).
20.
Zaghloul, N. A., “SWMM Model and Level of Discretization,” Journal of the Hydraulic Division, ASCE, Vol. 107, No. HY11, Nov., 1981, pp. 1535–1545.
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Copyright © 1987 ASCE.
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Published online: Mar 1, 1987
Published in print: Mar 1987
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