LAKE CYNTHIA

Reservoir Levels Weather Hydrology


RESERVOIR CALIFORNIA

Lake Cynthia


May 2, 2024

Lake Cynthia in Napa, California, is a privately owned water supply reservoir on Tr Soda Creek. Built in 1955, this earth dam stands at 20 feet high and has a storage capacity of 92 acre-feet, serving primarily for irrigation and water supply purposes. With a drainage area of 0.65 square miles and a surface area of 12 acres, Lake Cynthia is a vital resource in the region, providing crucial water storage for agricultural and domestic use.

Despite its relatively small size, Lake Cynthia plays a significant role in water management in the area. With a high hazard potential due to its location and structural characteristics, the dam is regularly inspected and maintained to ensure its safety and integrity. The most recent inspection in September 2017 deemed the dam to be in satisfactory condition, with a comprehensive emergency action plan in place. The dam's proximity to the city of Napa and its crucial role in water supply make it a key asset in the region's water resource infrastructure, highlighting the importance of proper management and maintenance for sustainable water usage and climate resilience.



Year_Completed 1955
Dam_Height 20
River_Or_Stream Tr Soda Creek
Dam_Length 750
Primary_Dam_Type Earth
Surface_Area 12
Hydraulic_Height 14.6
Drainage_Area 0.65
Nid_Storage 92
Hazard_Potential High
Nid_Height 20

Weather Outlook



16 Day Long Term Forecast

Seasonal Comparison


Historical Data


Area Boat Ramps

BALL PARK AVENUE 14775, CLEARLAKE
Upper Cache Watershed, California
TURNEY STREET BOAT RAMP
San Pablo Bay Watershed, California
PIER 52 BOAT LAUNCH
San Francisco Bay Watershed, California
DOOLITTLE DRIVE 7250, OAKLAND
San Francisco Bay Watershed, California
SAN FRANCISCO BAY TRAIL, BERKELEY
San Pablo Bay Watershed, California
MCKAY AVENUE 1200, ALAMEDA
San Francisco Bay Watershed, California
SAN FRANCISCO BAY TRAIL, OAKLAND
San Francisco Bay Watershed, California
POWELL STREET 3310, EMERYVILLE
San Pablo Bay Watershed, California
HIGHWAY 45, KNIGHTS LANDING
Sacramento-Stone Corral Watershed, California
PAN AMERICAN ESPLANADE SAN FRANCISCO
San Pablo Bay Watershed, California

Rafting & Kayaking

HEADWATERS TO BEAR GULCH
Middle Fork Feather Watershed, California
HIGHWAY 70 CROSSING TO LAKE OROVILLE
North Fork Feather Watershed, California
ROCK CREEK DAM TO CRESTA RESERVOIR
North Fork Feather Watershed, California
ROAD 24N01 CROSSING AT THE "SLAB" TO NF BOUNDARY
Upper Elder-Upper Thomes Watershed, California
CRESTA DAM TO POE RESERVOIR (CAMP CREEK)
North Fork Feather Watershed, California
BUTTE CREEK
Upper Butte Watershed, California
FISH CREEK
Upper Eel Watershed, California
POE DAM TO HIGHWAY 70 CROSSING
North Fork Feather Watershed, California
ELK CREEK
Middle Fork Eel Watershed, California
BEAR GULCH TO CONFLUENCE WITH MIDDLE FORK FEATHER WSR
Middle Fork Feather Watershed, California

Parks & Recreation

                                                       

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Sam Brannan Park

East Lake Park

Motor Park

                                                                                                                       
                                               
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MORGAN HORSE RANCH
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PAINTED ROCKS
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NORTHWEST GIACOMINI WETLANDS VIEWPOINT
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KULE LOKLO CULTURAL EXHIBIT
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MUIR WOODS VISITOR CENTER
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BOHEMIAN GROVE
Bohemian Grove is a private retreat located in Monte Rio, California, and is one of the most exclusive and secretive points of interest in the state. The location of the ...

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