Author: California. State Lands CommissionPublisher:
ISBN:
Category : Flood damage prevention
Languages : en
Pages : 2
Book Description
Contra Costa County Flood Control and Water Conservation District, Walnut Creek Project, Contra Costa County-W8922
Author: California. State Lands CommissionPublisher:
ISBN:
Category : Flood damage prevention
Languages : en
Pages : 2
Book Description
Operation and Maintenance Manual
Author: Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 166
Book Description
Lower Pine Creek Watershed Project
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Walnut Creek Basin, California
Author: United States. Engineers CorpsPublisher:
ISBN:
Category : Flood control
Languages : en
Pages : 66
Book Description
Walnut Creek Project, Contra Costa County, California
Author: United States. Army. Corps of Engineers. Sacramento DistrictPublisher:
ISBN:
Category : San Ramon Bypass Channel (Calif.)
Languages : en
Pages :
Book Description
Walnut Creek Channel Improvement Project, Contra Costa County, California
Author: John F. GeorgePublisher:
ISBN:
Category : Stream channelization
Languages : en
Pages : 0
Book Description
Tests were conducted on a 1:25-scale model of the existing covered channels in the city of Walnut Creek where Las Trampas Creek and San Ramon Creek join to form Walnut Creek. The purpose of the model investigation was to determine the capabity of the existing flood-control channel system and methods for increasing the capacity and improving the flow characteristics in the channels. The model reproduced approximately 818 ft of Walnut Creek, 2,264 ft of San Ramon Creek, and 1,492 ft of Las Trampas Creek, and was constructed so that the slopes of the channels could be adjusted to reproduce various energy gradients that would result from roughness values different than those anticipated. The slopes of the model were initially adjusted to produce an energy gradient resulting from a Manning's roughness factor n of 0.012 in the prototype. The maximum discharge capacities were determined to be as follows: Las Trampas Creek, 11,000 cfs (100-year frequency flow); San Ramon Creek, 17,400 cfs (2,200 cfs more than the 100-year frequency flow); Walnut Creek conduit, 24,000 cfs. A soffit installed on the bottom of the T-beams on the roof of Walnut Creek increased its capacity to 27,500 cfs.
Marsh Creek and Kellogg Creek Watershed Programs for Soil Conservation and Flood Control
Author: Contra Costa County Flood Control and Water Conservation DistrictPublisher:
ISBN:
Category : Flood control
Languages : en
Pages :
Book Description
WALNUT CREEK PROJECT, CONTRA COSTA COUNTY, CALIFORNIA; DESIGN MEMORANDUM NO.2, CHANNEL IMPROVEMENT BASIS OF DESIGN - REACH II (WILLOW PASS ROAD TO RUDGEAR ROAD).
Author: United States. Army. Corps of Engineers. Sacramento DistrictPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
WALNUT CREEK PROJECT, CONTRA COSTA COUNTY, CALIFORNIA; DESIGN MEMORANDUM NO.1, LETTER SUPPLEMENT NO.2, LOWER PINE AND GALINDO CREEKS CHANNEL IMPROVEMENTS.
Author: United States. Army. Corps of Engineers. Sacramento DistrictPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Cache Creek Environmental Restoration
Author: Borcalli & Associates, IncPublisher:
ISBN:
Category : Flood control
Languages : en
Pages : 50
Book Description
The purpose of this Basis of Design is to present reconnaissance-level design and cost information for an alternative structural flood control project to provide protection to the City of Woodland and the town of Yolo, California.
