C.L. Tilden Park dam
C.L. Tilden Park
C.L. Tilden Park, also known as Lake Anza, is a public utility located in San Pablo, California, and owned by the state. This park plays a crucial role in flood risk reduction, recreation, and water supply management in the area. The primary purpose of the park is to reduce flood risks in the region, with the Wildcat Creek running through the area.
The Earth-type dam at C.L. Tilden Park stands at 88 feet in height, with a hydraulic height of 82 feet, and was completed in 1938. The dam has a storage capacity of 268 acre-feet, serving as a vital resource for managing water supply in the region. Despite its high hazard potential, the dam's condition is deemed satisfactory, with regular inspections and maintenance ensuring its safety and functionality.
Visitors to C.L. Tilden Park can enjoy its 10-acre surface area, recreational activities, and scenic views of the surrounding landscape. With its strategic location and importance in water resource management, the park serves as a valuable asset for both the community and the environment, highlighting the intersection of water resource infrastructure and climate resilience in the region.
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 C.L. Tilden Park -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Lorenzo C A San Lorenzo Ca | 13 cfs | → |
| San Ramon C A San Ramon Ca | 1 cfs | → |
| Cull C Ab Cull C Res Nr Castro Valley Ca | 0 cfs | → |
| Corte Madera C A Ross Ca | 4 cfs | → |
| Crow C Nr Hayward Ca | 1 cfs | → |
| Castro Valley C A Hayward Ca | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near C.L. Tilden Park.
Boat launches
- San Francisco Bay Trail, Berkeley
- Powell Street 3310, Emeryville
- San Francisco Bay Trail, Oakland
- Northpoint Drive 1235, San Francisco
- Pan American Esplanade San Francisco
- Mckay Avenue 1200, Alameda
Campgrounds
- Wildcat View Group Camp
- New Woodland Group Camp
- Gillespie Youth Camp
- Camp Herms Bsa
- Maud Whalen
- Homestead Valley
Fishing spots
- San Pablo Reservoir
- Lake Temescal
- Berkeley Yacht Harbor
- Lafayette Reservoir
- City Of Benicia Fishing Pier
- 9th Street Boat Ramp
Paddle runs
- Headwaters To Mouth
- Headwaters To Ends One Quarter Mile South Of Bear Valley Road Bridge Segment 1: Ends 1/4 Mile South Of Bear Valley Road Bridge Segment 2: Caltrans Corporation Yard At Point Reyes Staton.
- Olema Ranch Campground To Caltrans Corporation Yard At Point Reyes Station
Track C.L. Tilden Park 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 C.L. Tilden Park
Where does the data for C.L. Tilden Park 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 C.L. Tilden Park.