Attachment A: HMP susceptibility map...Balance Hydrologics and EIP Associates (Proposed test of the...

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C o n t r a C o s t a Co u n t y A l a m e d a C o u n t y C o n t r a C o s t a C o u n t y A l a m e d a C o u n t y A l a m e d a C o u n t y S a n t a C l a r a C o u n t y S an J oaqu in Count y Ala med a Cou nty Alam e d a C ou n ty Sa n t a C la ra C o un t y N E W S 2 0 2 4 6 Miles Data sources: Alameda County Flood Control and Water Conservation District; ACCWP; Zone 7 Water Agency; U.S. Census Bureau; U.S. Geological Survey; William Lettis Associates (Oakland Museum creek and watershed mapping project); Balance Hydrologics and EIP Associates (Proposed test of the approach for the ACCWP HMM Preliminary Map, July 2003) LEGEND (see text also) Attachment A: HMP susceptibility map Alameda Countywide Clean Water Program November 13, 2006 Not included in HMP Tidally influenced / depositional - exempt Hill or high slope region (susceptible) Special consideration - Codornices Creek Special consideration - San Lorenzo & Alameda Creeks Streets County boundary Enclosed pipe or culvert Engineered channel - concrete Engineered channel - materials unknown Earthen channel or connector Natural creek or stream (susceptible) Major watersheds Major highways Channel type

Transcript of Attachment A: HMP susceptibility map...Balance Hydrologics and EIP Associates (Proposed test of the...

Page 1: Attachment A: HMP susceptibility map...Balance Hydrologics and EIP Associates (Proposed test of the approach for the ACCWP HMM Preliminary Map, July 2003) LEGEND (see text also) Attachment

Contra Costa County

Alameda County

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Alameda County

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Santa Clara County

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Santa Clara County

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Data sources: Alameda County Flood Control and Water Conservation District; ACCWP; Zone 7 Water Agency; U.S. Census Bureau; U.S. Geological Survey; William Lettis Associates (Oakland Museum creek and watershed mapping project); Balance Hydrologics and EIP Associates (Proposed test of the approach for the ACCWP HMM Preliminary Map, July 2003)

LEGEND (see text also)

Attachment A:HMP susceptibility map

Alameda Countywide Clean Water ProgramNovember 13, 2006

Not included in HMPTidally influenced / depositional - exemptHill or high slope region (susceptible)Special consideration - Codornices CreekSpecial consideration - San Lorenzo & Alameda Creeks

StreetsCounty boundary

Enclosed pipe or culvertEngineered channel - concreteEngineered channel - materials unknownEarthen channel or connectorNatural creek or stream (susceptible)

Major watershedsMajor highways

Channel type