Deer Flat Middle Dike dam
Deer Flat Middle Dike
Deer Flat Middle Dike, located in Nampa, Idaho, is a critical federal structure managed by the Bureau of Reclamation for irrigation purposes. Completed in 1911, this earth dam stands at a height of 18 feet and stretches 1262 feet in length, providing essential water storage for agricultural needs in the region. With a storage capacity of 159,365 acre-feet and a surface area of 10,100 acres, this dam plays a crucial role in regulating water flow from the Boise River and Snake River.
The dam's spillway, with a width of 750 feet, is uncontrolled, highlighting the need for constant monitoring and maintenance to ensure the safety and stability of the structure. Despite its high hazard potential, the condition assessment of Deer Flat Middle Dike is currently not available, underscoring the importance of regular inspections and risk management measures. With its moderate risk assessment rating, this dam serves as a reminder of the delicate balance between water resource management and climate resilience in the face of changing environmental conditions.
As water resource and climate enthusiasts continue to advocate for sustainable practices, Deer Flat Middle Dike stands as a testament to the intricate infrastructure required to support irrigation systems in the region. With its historical significance and ongoing operational role, this federal structure serves as a focal point for collaboration between federal agencies, local stakeholders, and the community to ensure the efficient and safe utilization of water resources for generations to come.
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 Middle Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Boise River At Caldwell | 1,460 cfs | → |
| Mason Creek Nr Caldwell Id | 46 cfs | → |
| Mason Creek At Caldwell Id | 145 cfs | → |
| W Hartley Gulch Nr Caldwell Id | 34 cfs | → |
| Fifteenmile Creek Nr Midland Blvd Nr Middleton | 76 cfs | → |
| South Middleton Drain At Middleton Id | 57 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Deer Flat Middle Dike.
Boat launches
- Upper Embankment Road Canyon County
- Look Lane 21723, Canyon County
- Marsing Murphy Road 12985, Owyhee County
- Big Bend Launch Site
- Celebration Park
Track Deer Flat Middle 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 Middle Dike
Where does the data for Deer Flat Middle 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 Deer Flat Middle Dike.