Deer Flat East Dike dam
Deer Flat East Dike
Deer Flat East Dike, located in Canyon, Idaho, is a crucial water resource structure managed by the Bureau of Reclamation for irrigation purposes. Completed in 1911, this earth dam stands at 18 feet high and spans a length of 3806 feet, holding a maximum storage capacity of 159,365 acre-feet. Situated on the Boise River OS, the dam plays a key role in providing water for agricultural activities in the region.
With a low hazard potential and a high risk assessment rating of 2, Deer Flat East Dike is regularly inspected and regulated by the Bureau of Reclamation to ensure its structural integrity and operational efficiency. Despite having no spillway, the dam's design features an arch core supported by a rock foundation, contributing to its stability and reliability. Additionally, the dam's emergency action plan was last revised in July 2017, emphasizing the importance of preparedness and risk management in the event of a water-related emergency.
As a significant water management infrastructure in Idaho, Deer Flat East Dike serves as a critical component of the region's water supply system, demonstrating the importance of effective monitoring and maintenance practices to safeguard against potential risks and ensure sustainable water resource management for future generations.
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 Deer Flat East Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fifteenmile Creek Nr Midland Blvd Nr Middleton | 76 cfs | → |
| Mason Creek At Caldwell Id | 145 cfs | → |
| Mason Creek Nr Caldwell Id | 46 cfs | → |
| Boise River At Caldwell | 1,460 cfs | → |
| South Middleton Drain At Middleton Id | 57 cfs | → |
| N Middleton Drain (Mill Slough) At Middleton Id | 46 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Deer Flat East Dike.
Boat launches
- Upper Embankment Road Canyon County
- Marsing Murphy Road 12985, Owyhee County
- Look Lane 21723, Canyon County
- Celebration Park
- South Swan Falls Road Ada County
Campgrounds
- Celebration County Park
- Gowen Field Military
- Swan Falls Campground
- Swan Falls - Idaho Power
- Parma City Park - Old Fort Boise
- Succor Creek State Natural Area
Track Deer Flat East 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 Deer Flat East Dike
Where does the data for Deer Flat East 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 Low 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 Deer Flat East Dike.