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Title: Spillway for Amistad Dam, Rio Grande, Mexico and United States : hydraulic model investigation
Authors: United States. Army. Corps of Engineers. Fort Worth District.
U.S. Army Engineer Waterways Experiment Station.
Keywords: U.S. Army Engineer Waterways Experiment Station (WES) -
Hydraulic structures
Amistad Dam
Rio Grande
Stilling basins
Hydraulic models
Hydraulic jump
Publisher: U.S. Army Engineer Waterways Experiment Station.
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical report (U.S. Army Engineer Waterways Experiment Station) ; 2-653.
Description: Technical Report
Summary: This report presents the results of tests conducted on a 1:70-scale section model reproducing one-half of the spillway for Amistad Dam, a combination concrete gravity and earth embankment structure rising 253 ft above the bed of the Rio Grande. The spillway consists of an ogee crest controlled by 16 tainter gates, 50 ft wide and 54 ft high, and a hydraulic jump type stilling basin. The spillway will be flanked on each side by a powerhouse. Discharge characteristics of the spillway, hydrostatic pressures on the ogee weir crest, lateral pressures on the gate piers, performance of both single- and double-stage stilling basins at various elevations, and the height and length of both spray and stilling basin training walls were investigated. The theoretical spillway rating curve and the expected hydrostatic pressures on the weir crest were in close agreement with those determined with the model. Stilling basin performance of the original design was found to be unsatisfactory. However, satisfactory stilling basin designs were developed for three apron elevations. The height of the original spray wall was found to be inadequate due to the effect of the abutment on the water-surface profile. The original height and length of the stilling basin training walls were found to be the optimum.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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