Harry L. Englebright Dam dam
Harry L. Englebright Dam
Harry L. Englebright Dam, also known as Harry L. Englebright Lake, is a federal-owned structure located in Marysville, California, along the Yuba River. Completed in 1941, this arch dam stands at 280 feet tall and spans 1142 feet in length, with a maximum storage capacity of 103,000 acre-feet and a normal storage of 70,590 acre-feet. The primary purpose of the dam is debris control, with additional functions including hydroelectric power generation and recreational activities.
Managed by the US Army Corps of Engineers, the dam plays a crucial role in managing flood risks in the region. With a high hazard potential, the dam is subject to regular inspections and maintenance to ensure its structural integrity and the safety of surrounding communities. The emergency action plan is regularly updated, and risk management measures are in place to address potential threats and engage with local emergency managers to develop coordinated response plans.
In the face of changing climate patterns and potential extreme weather events, the Harry L. Englebright Dam serves as a vital infrastructure for water resource management in the area. With a commitment to ongoing monitoring and risk mitigation strategies, the dam continues to play a pivotal role in safeguarding the region from flooding and ensuring the sustainable use of water resources for the future.
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 Harry L. Englebright Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Deer C Nr Smartville Ca | 5 cfs | → |
| Yuba R Nr Marysville Ca | 539 cfs | → |
| Bear R Nr Wheatland Ca | 39 cfs | → |
| Nf American R A North Fork Dam Ca | 127 cfs | → |
| N Yuba R Bl Goodyears Bar Ca | 212 cfs | → |
| Sacramento R Bl Wilkins Slough Nr Grimes Ca | 6,750 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Harry L. Englebright Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Harry L. Englebright Dam
Where does the data for Harry L. Englebright Dam 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 below 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.
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.