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Book Sedimentation Study and Flume Investigation Mission Creek Santa Barbara California Corte Madera Creek Marin County California

Download or read book Sedimentation Study and Flume Investigation Mission Creek Santa Barbara California Corte Madera Creek Marin County California written by and published by . This book was released on 2000 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concrete-lined supercritical-flow flood-control channel was designed for Mission Creek in Santa Barbara, California. The design did not include a debris basin at the upstream end of the channel, so there was potential for a significant quantity of bed load to be delivered during a flood event. An existing concrete-lined flood control channel on Corte Madera Creek in Marin County, California lacks a debris basin at its upstream terminus and carries significant bed load through a supercritical flow reach. This study was conducted to determine the influence of potential bed load transport on hydraulic roughness in the concrete-lined channel. For Mission Creek, a numerical sedimentation model study was conducted to determine the quantity and size of bed load transport that would occur during a flood event. flume studies, which simulated flood unit discharges in Mission Creek and Corte Madera Creek were conducted to determine hydraulic roughness due to bed load transport. An equation was developed that accounted for the additional hydraulic roughness due to bed load transport in concrete channels. The equation is applicable for gravel concentrations up to about 3,000 mg/l, which is the concentration where sediment began to accumulate on the bed.

Book Sedimentation Study and Flume Investigation Mission Creek Santa Barbara California Corte Madera Creek Marin County California

Download or read book Sedimentation Study and Flume Investigation Mission Creek Santa Barbara California Corte Madera Creek Marin County California written by Ronald R. Copeland and published by . This book was released on 2000 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Corte Madera Creek Marin County California Modified Unit 4 Sedimentation Study

Download or read book Corte Madera Creek Marin County California Modified Unit 4 Sedimentation Study written by and published by . This book was released on 2000 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment deposition occurs in the lower reaches of the concrete-lined Corte Madera Creek flood control channel because the elevation of the channel bottom is below sea level. These sediment deposits, combined with the presence of tube worms and barnacles on the channel walls, reduce the flood-carrying capacity of the channel. The upstream portion of the original flood control project was not completed and flood flows above 3,000 cfs are not contained in the natural channel upstream. Thus, there is reduced flow competency to carry the coarse sediment load delivered by flood flows. With annual maintenance and upstream containment of breakout flows, most of the sediment deposited in the concrete channel from seasonal antecedent flow can be washed out by the time the flood peak occurs. An HEC-6 numerical sedimentation model study was conducted to evaluate several alternative plans to provide flood containment and sediment storage while also maintaining the natural characteristics of the upstream channel.

Book Corte Madera Creek Sedimentation Study

Download or read book Corte Madera Creek Sedimentation Study written by Ronald R. Copeland and published by . This book was released on 1989 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: A one-dimensional numerical model was used to determine the effects of sediment deposition in the Corte Madera Creek flood control channel. The effect of accumulated gravel deposits in the concrete-lined channel on hydraulic roughness was evaluated. The effect of a proposed sediment trap at the upstream end of the project on reducing gravel deposits was determined. The performance of the project during a design flood event was simulated. (fr).

Book Initial Findings of Sediment Source Survey and Creek Sedimentation El Corte de Madera Creek Open Space Preserve San Mateo County California

Download or read book Initial Findings of Sediment Source Survey and Creek Sedimentation El Corte de Madera Creek Open Space Preserve San Mateo County California written by Balance Hydrologics, Inc and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Estimate of Sediment Discharges Santa Ana River

Download or read book Estimate of Sediment Discharges Santa Ana River written by Carl G. Kroll and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Lower Mission Creek Santa Barbara County Streams California

Download or read book Lower Mission Creek Santa Barbara County Streams California written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Sediment Routing in Tributaries of the Redwood Creek Basin

Download or read book Sediment Routing in Tributaries of the Redwood Creek Basin written by John Pitlick and published by . This book was released on 1982 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book San Timoteo Creek California Sedimentation Study

Download or read book San Timoteo Creek California Sedimentation Study written by Scott E. Stonestreet and published by . This book was released on 1994 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Engineer District, Los Angeles, proposed channel improvements to the San Timoteo Creek, San Bernardino County, California. Because the watershed involved has the potential to supply a large amount of sediment during a storm event, debris basins were required to assure that the proposed channel would function as designed. The traditional dam-style debris basin design was aesthetically unacceptable to local residents, and the local flood control agency raised concerns about dam safety. Thus, a series of six in- channel sediment basins was designed. The series of basins was designed to fill equentially with the total sediment storage capacity sufficient for expected needs. The conceptual design of the basins was unproven so detailed analyses were required to verify the design. This was accomplished using the numerical models TABS1 (HEC-6) and SAM. TABS1 was able to simulate sequential filling of the basins, the variation of deposition rate as each basin filled, the size class distribution of the sediment that passed through the basin, and the slope of the deposited sediments. A series of sensitivity test were conducted to verify the design given the lack of measured prototype data. Overall results concluded that the in-channel basins performed satisfactorily for a relatively wide range of conditions. This methodology for sedimentation design is unique and provides an approach that may be generalized to other flood control channel projects.

Book River Sediment Discharge Study San Diego Region

Download or read book River Sediment Discharge Study San Diego Region written by and published by . This book was released on 1988 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: