Dam Report

Quail dam

California, USA West Branch Ca Aqueduct Hazard High
Today high
--
Tonight low
--
Dam height
50ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Quail                                                             -- None dam
Quail None · West Branch Ca Aqueduct
About this dam

Quail

Quail, also known as the Peace Valley Pipeline Intake, is a crucial water resource infrastructure in California's Los Angeles County. Managed by the state, this water supply structure serves the primary purpose of providing water for both hydroelectric and general water supply needs. Completed in 1981, Quail is an Earth-type dam standing at 50 feet tall, with a hydraulic height of 37 feet and a structural height of 42 feet. With a storage capacity of 8,613 acre-feet and a normal storage level of 7,440 acre-feet, Quail plays a vital role in managing water resources in the region.

Located in the city of Piru, Quail is situated along the West Branch of the CA Aqueduct. Its high hazard potential and risk assessment classification of "High (2)" underscore the importance of proper maintenance and oversight. While the condition assessment is currently listed as "Not Available," regular inspections by the Federal Energy Regulatory Commission ensure its operational integrity. With no spillway, Quail relies on its design and structural features to manage water flow effectively. The presence of associated structures or locks is not applicable, emphasizing the simplicity and efficiency of this essential water supply infrastructure.

As a key component of the water management system in the region, Quail serves as a critical link in ensuring reliable water supply and supporting hydroelectric operations. With a significant storage capacity and strategic location, it plays a vital role in meeting the water needs of the surrounding communities. Despite its high hazard potential, ongoing inspections and risk management measures by regulatory agencies help maintain the safety and effectiveness of this essential water resource infrastructure.

StateNone
River / streamWest Branch Ca Aqueduct
NID IDCA01594
Owner typeState
Primary purposeWater Supply
Dam typeEarth
Year built1981
Dam height50 ft
Dam length350 ft
Max storage8,613 AF
Normal storage7,440 AF
Surface area290.0 ac
Drainage area6.6 sq mi
Hazard potentialHigh
ConditionNot Available
Last inspectionWed, 30 Sep 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.

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 Quail -- inflows here typically show up in storage 24-72 hours later.

Track Quail 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 Quail

Where does the data for Quail 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 High 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 Quail .