Guadalupe dam
Guadalupe
Guadalupe Reservoir, located in San Jose, California, is a key water supply structure managed by a public utility. Built in 1935, this earth dam stands at a height of 142 feet and has a storage capacity of 3,460 acre-feet. With a primary purpose of water supply for irrigation and other uses, Guadalupe Reservoir plays a crucial role in meeting the water needs of the surrounding area.
The dam, situated on Guadalupe Creek, is regulated by the California Department of Water Resources, ensuring that it meets safety standards and is regularly inspected. Despite being categorized as having a high hazard potential, the dam's condition assessment in 2017 revealed it to be in fair condition. Its last inspection in December 2020 indicated a satisfactory state, with regular maintenance and adherence to safety protocols contributing to its reliability in safeguarding the water resources of Santa Clara County.
As a vital infrastructure for water management in the region, Guadalupe Reservoir highlights the intersection of water resource management and climate resilience. With its strategic location and role in providing water supply, the dam serves as a critical asset in addressing the challenges of water security in the face of changing climate conditions, reflecting the ongoing efforts to ensure the sustainable use of water resources in California.
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 Guadalupe -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Saratoga C A Saratoga Ca | 5 cfs | → |
| Guadalupe R Abv Hwy 101 A San Jose Ca | 37 cfs | → |
| Soquel C A Soquel Ca | 16 cfs | → |
| San Lorenzo R A Big Trees Ca | 49 cfs | → |
| Coyote C Ab Hwy 237 A Milipitas Ca | 13 cfs | → |
| San Lorenzo R A Santa Cruz Ca | 49 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Guadalupe.
⚓ Boat launches
- Mckean Road 22707-22725, San Jose
- Oak Glen Avenue 17655, Morgan Hill
- Stevens Creek Reservoir
- Uvas Road 15000-15208, Morgan Hill
- Santa Clara County
- Pinto Lake City Park
⛺ Campgrounds
- Camp Loma (Future Farmers Of America)
- Uvas Canyon County Park
- West Ridge Trail Camp
- Sanborn - Skyline County Park
- Walk-In Camps
- Walden West Outdoor School
🎣 Fishing spots
More fishing →🛡 More reservoirs
More reservoirs →Track Guadalupe 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 Guadalupe
Where does the data for Guadalupe 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 Guadalupe.