Glen Anne dam
Glen Anne
Glen Anne is a significant federal-owned irrigation dam located in Santa Barbara, California, specifically in the city of Goleta. Built in 1952 by the Bureau of Reclamation, this earth dam stands at a height of 135 feet and serves the primary purpose of irrigation, with a storage capacity of 630 acre-feet. The dam is situated on the West Fork Glen Anne Canyon Creek and is managed by the Bureau of Reclamation for operations, inspections, and regulatory purposes.
With a high hazard potential and a moderate risk assessment score, Glen Anne represents a critical water resource infrastructure in the region. The dam has a hydraulic height of 95 feet and a spillway width of 6 feet, with a maximum discharge capacity of 950 cubic feet per second. The surrounding area covers 16 acres, serving a drainage area of 1 square mile. Despite its age, Glen Anne has not undergone any reported modifications and its condition assessment is currently marked as "Not Available".
Overall, Glen Anne plays a crucial role in irrigation and water supply management in the region, showcasing the Bureau of Reclamation's commitment to ensuring the safety and functionality of water resource structures. Enthusiasts of water resources and climate will find this dam's historical significance and operational details fascinating, highlighting the intersection of engineering, environmental stewardship, and water management in California's diverse landscape.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Glen Anne -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Pedro C A Goleta Ca | 1 cfs | → |
| San Jose C Nr Goleta Ca | 1 cfs | → |
| Maria Ygnacio C A Univ Dr Nr Goleta Ca | · | → |
| Atascadero C Nr Goleta Ca | · | → |
| Santa Ynez R Bl Los Laurls Cyn Nr Snta Ynez Ca | 5 cfs | → |
| Santa Cruz C Nr Santa Ynez Ca | 8 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Glen Anne.
Campgrounds
- Fremont Campground
- Fremont
- Paradise Campground (Fed)
- Los Prietos Campground
- Los Prietos
- Sage Hill Group Campground
Fishing spots
Track Glen Anne 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.
About Glen Anne
Where does the data for Glen Anne 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Glen Anne.