Horst Dam; Kelly dam
Horst Dam; Kelly
Horst Dam, also known as Wetland #1, is a privately owned structure located in Mountrail, North Dakota. Built in 2001 by the US Fish and Wildlife Service, this earth dam serves primarily for irrigation purposes along Shell Creek. With a height of 8 feet and a length of 420 feet, the dam has a storage capacity of 57.4 acre-feet and a surface area of 7.2 acres. Despite its low hazard potential, the dam is regulated by the North Dakota State Water Commission and undergoes regular inspections to ensure its structural integrity.
Managed by private owners, Horst Dam plays a crucial role in the agricultural landscape of the region, providing essential water resources for irrigation. With a spillway width of 60 feet and an uncontrolled spillway type, the dam is designed to handle moderate risks and has not been rated for its condition assessment. The presence of a vertical lift outlet gate allows for controlled water release when needed, further enhancing the dam's functionality and efficiency in water management. Although the dam has not been modified in recent years and does not have an Emergency Action Plan in place, it continues to fulfill its intended purpose effectively.
Horst Dam stands as a testament to the importance of water resource management in the face of changing climate conditions. With its strategic location and purposeful design, the dam exemplifies the collaboration between private owners, regulatory agencies, and design professionals in ensuring the sustainable use of water for irrigation in North Dakota. As climate enthusiasts and water resource advocates, it is essential to recognize the significance of structures like Horst Dam in safeguarding water availability for agricultural activities and maintaining ecological balance in the region.
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 Horst Dam; Kelly -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| E. Fork Shell Creek Nr Parshall | 13 cfs | → |
| Deepwater Creek At Mouth Nr Raub | 5 cfs | → |
| White Earth River At White Earth | 33 cfs | → |
| Des Lacs River At Foxholm | 0 cfs | → |
| Bear Den Creek Nr Mandaree | 0 cfs | → |
| Souris River Nr Foxholm | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Horst Dam; Kelly.
Boat launches
Campgrounds
Track Horst Dam; Kelly 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 Horst Dam; Kelly
Where does the data for Horst Dam; Kelly 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 Horst Dam; Kelly.