Corte Madera Creek Flood Control Project, Unit 4, Town of Ross, Marin County, California

Corte Madera Creek Flood Control Project, Unit 4, Town of Ross, Marin County, California PDF Author:
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ISBN:
Category : Flood control
Languages : en
Pages : 176

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Corte Madera Creek Flood Control Project Unit 4, Marin County, California

Corte Madera Creek Flood Control Project Unit 4, Marin County, California PDF Author: United States. Army. Corps of Engineers. Sacramento District
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ISBN:
Category : Flood control
Languages : en
Pages :

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Final Supplemental Environmental Impact Statement

Final Supplemental Environmental Impact Statement PDF Author: United States. Army. Corps of Engineers. Sacramento District
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ISBN:
Category : Flood control
Languages : en
Pages :

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DRAFT REVISED ENVIRONMENTAL IMPACT STATEMENT

DRAFT REVISED ENVIRONMENTAL IMPACT STATEMENT PDF Author: United States. Army. Corps of Engineers. San Francisco District
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ISBN:
Category : City planning
Languages : en
Pages : 93

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Corte Madera Creek Flood Control Project, Unit 4, Town of Ross, Marin Cty., CA. (draft Supplement to EIS).

Corte Madera Creek Flood Control Project, Unit 4, Town of Ross, Marin Cty., CA. (draft Supplement to EIS). PDF Author: United States. Army. Corps of Engineers. Sacramento District
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ISBN:
Category : Environmental impact statements
Languages : en
Pages :

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Corte Madera Creek Flood Control Project, Marin County

Corte Madera Creek Flood Control Project, Marin County PDF Author:
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ISBN:
Category :
Languages : en
Pages : 104

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

Corte Madera Creek, Marin County, California, Modified Unit 4 Sedimentation Study PDF Author:
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Category :
Languages : en
Pages : 73

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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.

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

Corte Madera Creek, Marin County, California, Modified Unit 4 Sedimentation Study PDF Author: Ronald R. Copeland
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Category : Corte Madera Creek (Calif.)
Languages : en
Pages : 78

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Corte Madera Creek

Corte Madera Creek PDF Author:
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ISBN:
Category : Environmental impact statements
Languages : en
Pages : 176

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Corte Madera Creek Flood Control Project, Marin County, California

Corte Madera Creek Flood Control Project, Marin County, California PDF Author: Marin County Flood Control and Water Conservation District
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 50

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