San Justo Dike dam
San Justo Dike
San Justo Dike, located in San Benito, California, is a crucial federal structure managed by the Bureau of Reclamation for irrigation purposes along the San Benito River OS. Constructed in 1987, this earth dam stands at a height of 69 feet, with a hydraulic height of 60 feet, and a total length of 1296 feet. It boasts a storage capacity of 11,693 acre-feet, providing essential water resources for the region.
Despite its importance for irrigation, the dam poses a high hazard potential, emphasizing the need for regular inspections and risk management measures. While its condition assessment is not currently available, the Bureau of Reclamation remains responsible for overseeing its operations, inspections, and regulatory aspects. With a high-risk rating and a hazard potential designation, the San Justo Dike serves as a critical infrastructure piece in California's water resource management system.
San Justo Dike's primary purpose remains irrigation, serving as a vital component for water supply in the region. As part of the Sacramento District, the dam plays a significant role in water storage and management along the San Benito River OS. Despite its age, the dam continues to provide essential water resources for agricultural activities, highlighting its ongoing importance in sustaining the local ecosystem and economy.
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 San Justo Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Benito R A Hwy 156 Nr Hollister Ca | · | → |
| Tres Pinos C Nr Tres Pinos Ca | 0 cfs | → |
| Pajaro R A Chittenden Ca | 48 cfs | → |
| Gabilan C Nr Salinas Ca | 0 cfs | → |
| Pacheco C Nr Dunneville Ca | 4 cfs | → |
| Llagas C Nr Gilroy | 12 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near San Justo Dike.
⚓ Boat launches
- Kirby Park
- Coyote Lake Road 10700-12746, Gilroy
- Pinto Lake City Park
- Rountree Lane Santa Cruz County
- Uvas Road 15000-15208, Morgan Hill
- Basalt Road, Los Banos
⛺ Campgrounds
More campgrounds →🎣 Fishing spots
More fishing →🛶 Paddle runs
- Gold Creek To Three Pools (Opal Creek Run)
- Headwaters North Fork Little Sur To Boy Scout Camp
- Boy Scout Camp To Confluence With Mainstem Little Sur
- Ventana Wilderness Boundary To Nf Boundary
- Headwaters South Fork Little Sur To Confluence With Mainstem Little Sur
- 0.25 Miles Downstream Of The Impoundment Of Sportsman's Lodge To Ventana Wilderness Boundary
Track San Justo Dike 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 San Justo Dike
Where does the data for San Justo Dike 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 San Justo Dike.