Accession Number : ADA323837

Title :   Dewatering Functional Design Criteria. Surface Bypass and Collection System Dewatering System Field Investigation, USACE Walla Walla District.

Descriptive Note : Final rept.

Corporate Author : STONE AND WEBSTER ENGINEERING CORP ENGLEWOOD CO

PDF Url : ADA323837

Report Date : JUL 1995

Pagination or Media Count : 252

Abstract : The U.S. Army Corps of Engineers (USACE) Walla Walla and Portland Districts have developed a program for surface bypass and collection system (SBCS) prototypes for improving survival of juvenile salmon migrating past Corps Lower Snake and Columbia Rivers hydroelectric projects. New surface bypass and collection systems that can safely bypass fish with considerably less spill than that currently used, could be designed to optimize fish passage while at the same time minimizing both dissolved gas related problems and lost power revenues. The purposes of this study were: (1) perform full investigations of the Lower Snake and Columbia River project's existing juvenile fish facilities to determine baseline design, operational and maintenance parameters; (2) identify dewatering systems that may apply to the SBCS; and (3) develop design criteria for dewatering system alternatives.

Descriptors :   *DESIGN CRITERIA, *DEWATERING, MAINTENANCE, WATER FLOW, PARAMETERS, PROTOTYPES, GASES, OPERATION, ARMY CORPS OF ENGINEERS, SEPARATION, RIVERS, HYDRAULICS, FISHERIES, COLLECTION, FISHES, HYDROELECTRICITY, DAMS, OREGON, ANIMAL MIGRATION, COLUMBIA RIVER, WASHINGTON(STATE).

Subject Categories : Civil Engineering
      Fluid Mechanics
      Biology

Distribution Statement : APPROVED FOR PUBLIC RELEASE