Combined Control Structure and High-level Crossing - Morganza Floodway: Model Investigation
Abstract
The existing plan for flood control below the latitude of Old River contemplates that waters reaching the Red River backwater area from the Mississippi, Ouachita, and Red Rivers shall be carried to the Gulf through the leveed channel of the Mississippi to its safe capacity, and through the Atchafalaya River and Floodway system. In its upper reaches this system includes the Atchafalaya River proper and the West Atchafalaya and Morganza Floodways. The Morganza Floodway is located on the west baru{ of the Mississippi River, 280 miles above Head of Passes and 21 miles belo11 Old River (plate 1). It extends southwesterly from the Mississippi River near Morganza, Louisiana, to the Atchafalaya River, thence southward, paralleling the Atchafalaya River to the vicinity of Krotz Springs, Louisiana, where it empties into the Atchafalaya Basin. The floodway proper embraces a tract of land four to six miles wide and approximately 30 miles long, bounded by the Atchafalaya River east levee on the west and the Atchafalaya Basin east protection levee on the east, with the main-line Mississippi River levee at its head. Operation of the floodway will divert a part of the Mississippi River flood water into the lower Atchafalaya Basin, where it will merge with flows of the Atchafalaya River and the West Atchafalaya Floodway. This combined flow will be carried by the lower Atchafalaya River and Wax Lake Outlet into the Gulf of Mexico.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1949
- Accession Number
- ADA637750