Harry Denning Irrigation #3 dam
Harry Denning Irrigation #3
Harry Denning Irrigation #3, located in Weld County, Colorado, is a vital water resource infrastructure designed by USDA NRCS for private irrigation purposes. Completed in 1962, this Earth dam stands at 27 feet high with a length of 1680 feet, providing a storage capacity of 50 acre-feet. The dam is situated on the Lost Creek-TR river/stream and is regulated by the Colorado Department of Water Resources.
With a low hazard potential and fair condition assessment as of 2010, Harry Denning Irrigation #3 serves as a crucial component of the local water management system in Keenesburg. The dam's uncontrolled spillway, with a width of 25 feet, allows for a maximum discharge of 310 cubic feet per second. Although the risk assessment indicates a moderate level of risk, the dam is inspected every 6 years to ensure its structural integrity and safety for the surrounding community.
Overall, Harry Denning Irrigation #3 plays a significant role in sustaining agricultural activities in the region by providing reliable water storage and distribution for irrigation purposes. As a key piece of infrastructure in the Omaha District, this dam showcases the importance of proper design, maintenance, and regulation in managing water resources effectively amidst changing climate conditions.
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 Harry Denning Irrigation #3 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Dry Creek At Mouth Near Fort Lupton | 14 cfs | → |
| South Platte River At Fort Lupton | 119 cfs | → |
| South Platte River At Henderson | 178 cfs | → |
| First Cr Ab 96th Ave | 1 cfs | → |
| First Cr Bel Buckley Rd | 2 cfs | → |
| South Platte River At Masters | 154 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Harry Denning Irrigation #3.
Fishing spots
- Banner Lakes Swa
- Hudson Fishing Pond
- Barr Lake
- Brighton City Park Lake
- Ken Mitchell Park Pond
- Adams County Fairground Lakes
Track Harry Denning Irrigation #3 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 Harry Denning Irrigation #3
Where does the data for Harry Denning Irrigation #3 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 Harry Denning Irrigation #3.