Dam Report

San Felipe Ranch dam

California, USA Tr San Felipe Cr Hazard Low
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Tonight low
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Dam height
49ft
Hazard rating
Low
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San Felipe Ranch -- None dam
San Felipe Ranch None · Tr San Felipe Cr
About this dam

San Felipe Ranch

San Felipe Ranch, located in San Jose, California, is a privately owned earth dam completed in 1959 for the primary purpose of water supply. The dam stands at a height of 49 feet and has a hydraulic height of 43 feet, with a storage capacity of 64 acre-feet. Situated on the Tr San Felipe Creek, the dam covers a surface area of 4 acres and serves for irrigation and water supply in the region.

Managed by the California Department of Water Resources (DWR) and regulated by the Safety of Dams agency, San Felipe Ranch dam has a low hazard potential and is considered to be in satisfactory condition as of the last assessment in 2017. The dam has undergone regular inspections, with the last one conducted in December 2020, and is subject to state permitting, inspection, and enforcement protocols. Despite its modest size and capacity, the dam plays a crucial role in providing a reliable water source for agricultural and domestic use in the area.

With its strategic location and vital function in water supply, San Felipe Ranch serves as a key infrastructure for ensuring water security in Santa Clara County. Climate and water resource enthusiasts can appreciate the role this dam plays in supporting local irrigation needs and maintaining a sustainable water supply in the region, highlighting the importance of effective dam management and regulatory oversight in adapting to changing climate conditions.

StateNone
River / streamTr San Felipe Cr
NID IDCA01014
Owner typePrivate
Primary purposeWater Supply
Dam typeEarth
Year built1959
Dam height49 ft
Dam length410 ft
Max storage64 AF
Surface area4.0 ac
Drainage area0.3 sq mi
Hazard potentialLow
ConditionSatisfactory
Last inspectionWed, 09 Dec 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 San Felipe Ranch -- inflows here typically show up in storage 24-72 hours later.

Track San Felipe Ranch in the Snoflo app

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FAQ

About San Felipe Ranch

Where does the data for San Felipe Ranch 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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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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