Dam Report

Davis dam

California, USA Tr Pope Creek Hazard Significant
Today high
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Tonight low
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Dam height
42ft
Hazard rating
Significant
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Davis -- None dam
Davis None · Tr Pope Creek
About this dam

Davis

Davis is a private water supply dam located in Napa, California, along the Tr Pope Creek. Built in 1955, this earth dam stands at 42 feet high and has a storage capacity of 140 acre-feet. Its primary purpose is for irrigation and water supply, serving the local community with essential resources. The dam is regulated by the Department of Water Resources (DWR) and is subject to state inspection and enforcement to ensure its safety and functionality.

Despite its age, Davis Dam remains in satisfactory condition with a significant hazard potential. Regular inspections are conducted to assess its structural integrity and emergency preparedness. The dam's associated structures are minimal, and it is managed by the Natural Resources Conservation Service. With a drainage area of 0.15 square miles, Davis Dam plays a crucial role in water management and supply for the region, supporting agricultural and residential needs.

Under the oversight of the San Francisco District of the US Army Corps of Engineers, Davis Dam continues to provide vital water resources to the community. Its location in a region prone to climate change impacts highlights the importance of maintaining and monitoring its condition to ensure long-term water security. As a key infrastructure asset, Davis Dam reflects the ongoing efforts to balance water supply needs with environmental conservation in the face of changing climate patterns.

StateNone
River / streamTr Pope Creek
NID IDCA00984
Owner typePrivate
Primary purposeWater Supply
Dam typeEarth
Year built1955
Dam height42 ft
Dam length897 ft
Max storage140 AF
Surface area9.0 ac
Drainage area0.2 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionWed, 24 Mar 2021 00:00:00 GMT

Dam data reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
Poor
A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Davis -- inflows here typically show up in storage 24-72 hours later.

Track Davis in the Snoflo app

Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.

FAQ

About Davis

Where does the data for Davis come from?

Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.

What does the Significant hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.