Accession Number : ADA187714

Title :   Hydraulic Model Investigation: Walnut Creek Flood-Control Project Contra Costa County, California.

Descriptive Note : Final rept. Jan 84-Dec 85,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB

Personal Author(s) : Davis, W G

PDF Url : ADA187714

Report Date : Oct 1987

Pagination or Media Count : 71

Abstract : Tests were conducted on a 1:25-scale model of the Walnut Creek channel to determine the adequacy of proposed channel improvements for the Walnut Creek channel, the San Ramon Bypass Channel, and their junction. The model reproduced approximately 1,084 ft of the San Ramon Bypass Channel, 730 ft of the Walnut Creek channel upstream from the junction, with topography reproduced upstream from the entrance to the revised channel, and 640 ft of the existing Walnut creek channel downstream from the junction. The model was constructed so that the slopes of the channels could be adjusted to reproduce various energy gradients equivalent to those resulting from different prototype Manning's n roughness factors.

Descriptors :   *FLOOD CONTROL, *CHANNELS(WATERWAYS), CALIFORNIA, ENERGY, GRADIENTS, HYDRAULIC MODELS, ROUGHNESS, TOPOGRAPHY, STREAMS, MODIFICATION, MODEL TESTS

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE