Accession Number:

ADA394463

Title:

Salinity Changes in Pontchartrain Basin Estuary, Louisiana, Resulting from Mississippi River-Gulf Outlet Partial Closure Plans

Descriptive Note:

Final rept.

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB

Report Date:

2001-07-01

Pagination or Media Count:

46.0

Abstract:

The Mississippi River-Gulf Outlet MRGO consists of a ship channel 36 ft deep and 500 ft wide, extending approximately 76 miles from the junction of the Inner Harbor Navigation Canal and the Gulf Intracoastal Waterway in New Orleans, LA, to the -38 m1w mean low water-ft contour in the Gulf of Mexico. The purpose of the MRGO is to provide a deep draft channel to the Port of New Orleans Inner Harbor facilities. Since the MRGOs completion in January 1968, saltwater flux from the MRGO through direct connections to Lake Borgne and the Gulf Intracoastal Waterway has contributed to an increase in the salinity concentration of the lakes and Biloxi Marshes. This report presents the results of a numerical model investigation used to predict average salinity changes that will occur in the Lake Pontchartrain Basin as a result of varying levels of closure of the Mississippi River-Gulf Outlet below Lake Borgne.

Subject Categories:

  • Ecology
  • Hydrology, Limnology and Potamology
  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE