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Napa Valley Lake Dam
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Napa Valley Lake Dam Share
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Overview Share
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California
Privately owned
Built in 1990

Napa Valley Lake Dam is an earth dam built on the TR Putah Creek River and is located in California. It was built in 1990 .

The dam is privately owned by Langtry Farms, LLC.

Location
Napa Valley Lake Dam
California, U.S.
Dam type
Earth
Dam type
Other
Purpose
Soil
Foundation type
Unknown
Core type
Ownership Share
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Langtry Farms, LLC
Owner
Private

Napa Valley Lake Dam is privately owned by Langtry Farms, LLC.

Construction Share
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1990
Completed
TR Putah Creek River
River built on
Napa Valley Lake Dam was built in 1990.
Metrics Share
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Summary
Dam length 2,170 feet
Dam height 40 feet
Hydraulic height 36 feet
Normal storage 200 acre feet
Surface area 17 acres
Drainage area 0 square miles
2,170 feet
Dam length

Length of the dam is defined as the length along the top of the dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.

40 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

36 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

200 acre feet
Normal storage

Normal storage is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. For normally dry flood control dams, the normal storage will be a zero value.

17 acres
Surface area

Surface area, in acres, of the impoundment at its normal retention level.

0 square miles
Drainage area

Drainage area of the dam, in square miles, which is defined as the area that drains to a particular point (in this case, the dam) on a river or stream.

Safety Share
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Low
Downstream potential hazard

Dams assigned the low hazard potential classification are those where failure or misoperation results in no probable loss of human life and low economic and/or environ-mental losses. Losses are principally limited to the owner’s property.

No emergency action plan
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

12/5/2017
Most recent inspection date

Inspections are every 1 ear.

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Distance to nearest town (miles) 6
Latitude 38
Longitude -122
NID ID (National ID) CA01256

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