Title: Design And Construction Of Bonnet Carre Spillway

Author(s): Helmer Swenholt

Publication: Journal Proceedings

Volume: 27

Issue: 11

Appears on pages(s): 243-262

Keywords: none

DOI: 10.14359/8186

Date: 11/1/1930

Abstract:
The Bonnet Carre Spillway now under construction on the left bank of the Mississippi river, about 30 iles above New Orleans, is a controlled spillway 7700 ft. long, emptying in time of unusual flood through a leveed floodway into Lake Pontchartrain, six miles away. Authorized under the Flood Control Act of May 15, 1928, according to the adopted plan it is to be capable of discharging 250,000 sec. Ft., leaving 1,250,000 sec. Ft. to go by New Orleans, preventing the stage at Carrollton from rising above 20 ft. on the gage. This plan is the outcome of 200 years of discussion and efforts to control the flood waters of the Mississippi river by levees only.