Sustainable Erosion Remediation and Restoration Measures in South Louisiana Navigation Channels
The Gulf Intracoastal Water Way (GIWW) and the Mississippi River-Gulf Outlet (MR-GO) are two navigation channels constructed by the US Army Corps of Engineers (USACE) in south Louisiana. Each of these navigation channels was dredged in previously undisturbed wetlands with no bank stabilization or erosion protection along its length. The GIWW and the MR-GO have had significant impacts on soil conditions, bank stability, and erosion in south Louisiana affecting both the natural and built environment. Aerial photographs covering the decades since their construction illustrate severe land loss and degradation in and around the navigation channels. Contributing to the instabilities were wake energy, salt water intrusion, and loss of land mass continuity in fragile ecosystems. The soil instabilities and erosion, in turn, lead to more severe hurricane damages, loss of coastal habitat, and further loss of channel structure. Faced with mounting navigational, environmental, and political issues resulting from the degradation of the GIWW and MR-GO, the US Army Corps of Engineers and the State of Louisiana had a unique opportunity to study and implement innovative and sustainable countermeasures for the surface and subsurface erosion prevalent in each channel. Political, economic, and social factors surrounding each channel lead to different remediation and restoration measures with respect to erosion prevention.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784413272
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Supplemental Notes:
- © 2014 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Hajra, Malay Ghose
- Koob, Tonja
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Conference:
- Geo-Congress 2014
- Location: Atlanta Georgia, United States
- Date: 2014-2-23 to 2014-2-26
- Publication Date: 2014-2
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1027-1041
- Monograph Title: Geo-Congress 2014 Technical Papers: Geo-Characterization and Modeling for Sustainability
Subject/Index Terms
- TRT Terms: Banks (Waterways); Channels (Waterways); Ecosystems; Environmental protection; Erosion; Soil stabilization; Stability (Mechanics)
- Identifier Terms: Mississippi River Gulf Outlet; U.S. Army Corps of Engineers
- Geographic Terms: Gulf Intracoastal Waterway; Louisiana; Mississippi River
- Subject Areas: Geotechnology; Marine Transportation; I42: Soil Mechanics;
Filing Info
- Accession Number: 01522441
- Record Type: Publication
- ISBN: 9780784413272
- Files: TRIS, ASCE
- Created Date: Apr 22 2014 4:07PM