Simonsen Subwatershed Lat B Sta 64+20 dam
Simonsen Subwatershed Lat B Sta 64+20
Located in Cherokee, Iowa, the Simonsen Subwatershed Lat B Sta 64+20 dam was completed in 1952 by the USDA NRCS for fire protection, stock, and small fish pond purposes. This earth dam stands at a height of 28 feet and spans 300 feet, providing a storage capacity of 57 acre-feet with a surface area of 1.6 acres. With a low hazard potential and moderate risk assessment, this dam on Rock Creek is regulated by the Iowa DNR and undergoes state permitting, inspection, and enforcement to ensure its safety and functionality.
Owned by the local government, this dam plays a crucial role in flood risk reduction for the surrounding area. With a drainage area of 0.86 square miles, the Simonsen Subwatershed Lat B Sta 64+20 dam is designed to manage water flow and protect downstream communities. Despite being uncontrolled, the dam's spillway width and discharge capabilities are not specified, highlighting the need for further assessment and potential modifications to enhance its efficiency and safety measures. As a key structure in the region, this dam serves as a vital resource for water management and climate resilience efforts.
As a significant component of the water infrastructure in Cherokee, Iowa, the Simonsen Subwatershed Lat B Sta 64+20 dam requires ongoing monitoring and maintenance to ensure its continued functionality and safety. With its primary purpose of fire protection and stock pond management, this earth dam provides essential storage capacity and flood risk reduction benefits for the local community. By adhering to state regulations and inspection protocols, the dam exemplifies responsible water resource management practices in the region, contributing to overall environmental sustainability and resilience in the face of 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 Simonsen Subwatershed Lat B Sta 64+20 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Sioux River At Correctionville | 3,150 cfs | → |
| Little Sioux River At Linn Grove | 2,000 cfs | → |
| Floyd River At Alton | 352 cfs | → |
| Floyd River At James | 871 cfs | → |
| Maple River At Mapleton | 617 cfs | → |
| West Fork Ditch At Hornick | 80 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Simonsen Subwatershed Lat B Sta 64+20.
Track Simonsen Subwatershed Lat B Sta 64+20 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 Simonsen Subwatershed Lat B Sta 64+20
Where does the data for Simonsen Subwatershed Lat B Sta 64+20 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 Simonsen Subwatershed Lat B Sta 64+20.