Dam Report

Hendricks Head dam

California, USA West Branch Feather River Hazard Low
Today high
--
Tonight low
--
Dam height
15ft
Hazard rating
Low
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Hendricks Head                                                    -- None dam
Hendricks Head None · West Branch Feather River
About this dam

Hendricks Head

Hendricks Head is a privately-owned hydroelectric dam located in Stirling City, California, along the West Branch Feather River. Built in 1907, this rockfill dam stands at 15 feet tall and has a length of 222.3 feet, with a storage capacity of 130 acre-feet. Managed by the Federal Energy Regulatory Commission, the dam serves the primary purpose of generating hydroelectric power.

Despite being classified as having a low hazard potential, Hendricks Head underwent its last inspection in July 2019, with an inspection frequency of every two years. With a moderate risk assessment rating of 3, the dam has no available condition assessment data and does not meet emergency action plan guidelines. While the dam's spillway type is uncontrolled, it has a spillway width of 102 feet.

For water resource and climate enthusiasts, Hendricks Head presents an intriguing case study in dam management and maintenance. As a historic structure with a significant role in hydroelectric power generation, the dam's risk assessment and maintenance practices offer valuable insights into balancing environmental impact and energy production goals. Stay tuned for updates on Hendricks Head's risk management measures and future regulatory developments.

StateNone
River / streamWest Branch Feather River
NID IDCA82565
Owner typePrivate
Primary purposeHydroelectric
Dam typeRockfill
Year built1907
Dam height15 ft
Dam length222 ft
Max storage130 AF
Normal storage130 AF
Surface area1.0 ac
Hazard potentialLow
ConditionNot Available
Last inspectionTue, 09 Jul 2019 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.

Loading hourly forecast…
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
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

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

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

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

Track Hendricks Head 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 Hendricks Head

Where does the data for Hendricks Head 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.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Hendricks Head .

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

Upgrade to Premium Not now
🔔

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.

Open App Store