Shasta County

Humboldt County Lassen County Trinity County

Tehama County

Plumas County

Butte County

Sierra County Glenn County

Mendocino County

Butte Basin Nevada County NOT AN LFPZ (See Source Reference)

Yuba County

Colusa County

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Lake County R

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El Dorado County

Yolo County Alpine County

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Sonoma County Napa County

Sacramento County Amador County

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S Calaveras County

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r ive R to en am cr Sa Tuolumne County Marin County

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San Joaquin County

Contra Costa County

San Francisco County

Alameda County Tuolumne River

S a n Stanislaus County J Mariposa County o a q u in

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San Mateo County r ive R ed rc Me

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Santa Clara County Merced County

Santa Cruz County Madera County

Levee Flood Protection Zones estimate the maximum area that may be inundated if a project levee fails when water surface elevation is at the top of a project levee. Zones depicted on this map were created utilizing methods and assumptions described in the accompanying technical manual, and do not necessarily depict areas likely to be protected from flow events for which project levees were designed.

Lands within the Levee Flood Protection Zones may be subject to flooding due to various factors, including the failure or overtopping San Benito County of project or non-project levees, flows that exceed the design capacity of project or non-project levees, and flows from water Monterey County Fresno County sources not specifically protected against by project levees. Lands not mapped within a Levee Flood Protection Zone are not invulnerable to flood risk, and some may also experience flooding from those or other processes.

O r e g o n I d a h o Butte Basin Source: Area shown is based on flood data for the Sacramento River and Butte Basin Legend U t a h 1875 to 1978. USGS Open File N e v a d a Report 80-971 June 1981 State-Federal Project Levee / Levee Flood Protection Zones C a l i f o r n i a Stream Centerline A r i z o n a 0 3 6 12 18 24 Map Source: DWR, ESRI Projection: UTM Zone 10 Levee Flood Protection Zones Miles Horizontal Datum: NAD 83 Vertical Datum: NAVD 88 1 inch = 6 miles Units: Survey Feet County Boundary