Swayze Irr. Dam #2 dam
Swayze Irr. Dam #2
Swayze Irrigation Dam #2, located in Roberts, South Dakota, is a privately owned earth dam completed in 1980 with a height of 24 feet and a length of 500 feet. The dam has a storage capacity of 50 acre-feet and serves as a critical structure for managing water resources in the area. Situated on Big Coulee Creek, the dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections to ensure its safety and compliance with state regulations.
Despite its low hazard potential, Swayze Irrigation Dam #2 poses a moderate risk, according to the data provided. The dam features an uncontrolled spillway with a width of 40 feet and has no outlet gates. While the condition assessment is marked as "Not Rated," the dam's risk management measures and emergency action plan (EAP) status remain unspecified. With its important role in water resource management in the region, stakeholders and climate enthusiasts may find interest in monitoring the dam's risk level and ensuring proper maintenance and oversight to safeguard against potential hazards and emergencies.
As a significant infrastructure in the Omaha District of the US Army Corps of Engineers, Swayze Irrigation Dam #2's location on Big Coulee Creek makes it a crucial component in the local water system. With its storage capacity and regulatory oversight, the dam contributes to the overall water management efforts in South Dakota. Continued monitoring and assessment of the dam's condition and risk level are essential to ensure its effectiveness in mitigating flood risks and supporting agricultural irrigation 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 Swayze Irr. Dam #2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Minnesota River Near Peever | 56 cfs | → |
| Big Sioux River Nr Florence Sd | 7 cfs | → |
| Whetstone River Near Big Stone City | 64 cfs | → |
| Minnesota River At Ortonville | 81 cfs | → |
| Big Sioux R Near Watertown Sd | 30 cfs | → |
| Bois De Sioux River Near White Rock | 96 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Swayze Irr. Dam #2.
Boat launches
- Mn 27 4906, Traverse County
- Mn 27 4924, Traverse County
- Roberts County
- T149 5800, Traverse County
- Rocky Point Big Stone City
- Roy Lake State Park
Track Swayze Irr. Dam #2 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 Swayze Irr. Dam #2
Where does the data for Swayze Irr. Dam #2 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 Swayze Irr. Dam #2.