Dam Report

Nine Springs dam

California, USA Tr Bull Run Slough Hazard Low
Today high
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Tonight low
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Dam height
16ft
Hazard rating
Low
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Nine Springs -- None dam
Nine Springs None · Tr Bull Run Slough
About this dam

Nine Springs

Located in Bieber, California, Nine Springs is a privately owned reservoir that serves as a vital water supply for irrigation and domestic use. Built in 1954, this earth dam stands at a height of 16 feet and has a maximum storage capacity of 125 acre-feet. The dam spans 3,600 feet and covers a surface area of 25 acres, drawing water from Tr Bull Run Slough to support agricultural activities in the region.

Managed and regulated by the California Department of Water Resources, Nine Springs has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in September 2017. Regular inspections ensure its structural integrity and operational efficiency, with the latest inspection conducted in June 2020. Despite its modest size, Nine Springs plays a crucial role in water resource management in Lassen County, contributing to the sustainability of the local ecosystem and economy.

Nine Springs exemplifies the intersection of water resource management and climate resilience, embodying the importance of maintaining infrastructure for sustainable water supply. As climate change continues to impact water availability and quality, reservoirs like Nine Springs are essential for storing and distributing water resources effectively. With its history of serving the community for decades, Nine Springs stands as a testament to the importance of proactive dam management in the face of evolving environmental challenges.

StateNone
River / streamTr Bull Run Slough
NID IDCA00951
Owner typePrivate
Primary purposeWater Supply
Dam typeEarth
Year built1954
Dam height16 ft
Dam length3,600 ft
Max storage125 AF
Surface area25.0 ac
Drainage area2.8 sq mi
Hazard potentialLow
ConditionSatisfactory
Last inspectionThu, 25 Jun 2020 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 Nine Springs -- inflows here typically show up in storage 24-72 hours later.

Track Nine Springs 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 Nine Springs

Where does the data for Nine Springs 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 Low 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.

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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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