Perris dam
Perris
Perris, also known as Lake Perris, is a state-owned dam located in Riverside, California. Built in 1973, this earth-type structure is crucial for water supply, serving purposes such as irrigation, recreation, and water supply. With a height of 130 feet and a storage capacity of 131,452 acre-feet, Perris Dam plays a vital role in managing water resources in the region.
Managed by the California Department of Water Resources (DWR), Perris Dam is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. Situated on the Bernasconi Pass river, the dam's high hazard potential is closely monitored, with regular inspections and satisfactory condition assessments. In case of emergencies, preparations are in place, although details on the emergency action plan need updating.
For water resource and climate enthusiasts, Perris Dam represents a significant infrastructure for managing water supply and supporting various activities in the area. Its strategic location, state ownership, and regulatory oversight ensure its role in safeguarding water resources and mitigating risks associated with its high hazard potential. As part of the broader water management system in California, Perris Dam plays a crucial role in sustaining the region's water needs and recreational opportunities.
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 Perris -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Perris Valley Storm Dr A Nuevo Rd Nr Perris Ca | · | → |
| San Jacinto R Nr Sun City Ca | · | → |
| Salt C A Murrieta Rd Nr Sun City Ca | · | → |
| San Timoteo C Nr Loma Linda Ca | 3 cfs | → |
| San Jacinto R Nr Elsinore Ca | 0 cfs | → |
| Santa Ana R A E St Nr San Bernardino Ca | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Perris.
Boat launches
- Vacation Drive 28736, Canyon Lake
- Goetz Road Riverside County
- Warren Road 37701, Temecula
- Vail Lake Boat Ramp
- Pacific Crest Trail, Hesperia
Campgrounds
- Lake Perris State Rec Area
- March Arb Military
- Cherry Valley Lakes
- Rancho Jurupa Park
- Yucaipa Regional Park
- Bogart Park
Fishing spots
Paddle runs
- San Mateo Wilderness Boundary To Nf Boundary With Camp Pendleton
- Filaree Flat To Confluence With Bear Creek
- Big Bear Dam To Private Land In Sec 19, T1n, R1w
- Big Meadows To Filaree Flat
- Below Deep Creek Lake To Below 2w01 Crossing
- South Fork Headwaters To San Gorgonio Wilderness Boundary/Sf Diversion Dam
Track Perris 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 Perris
Where does the data for Perris 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 Perris.