Pilot Rock Subwtrshd Sta 33+37 #1 dam
Pilot Rock Subwtrshd Sta 33+37 #1
Pilot Rock Subwtrshd Sta 33+37 #1, located in Cherokee, Iowa, is a vital earth dam completed in 1963 by the USDA NRCS to serve multiple purposes including fire protection, stock, small fish pond management, and flood risk reduction. This structure, owned by the local government, has a storage capacity of 134 acre-feet, with a normal storage level of 54 acre-feet and a surface area of 5 acres. The dam's primary purpose is to provide essential water resources for the surrounding area, particularly for fire protection and agricultural needs.
Managed by the Iowa Department of Natural Resources, this low-hazard dam on the TR-Little Sioux River has a drainage area of 0.87 square miles and a maximum discharge capacity of 0 cfs. The dam's moderate risk level is attributed to its condition assessment being "Not Rated," highlighting the need for regular inspections and risk management measures to ensure the safety and functionality of the structure. Despite its low hazard potential, the dam plays a crucial role in water resource management and protection in the region, emphasizing the importance of maintaining and monitoring such infrastructure in the face of changing climate conditions.
With a solid foundation on soil, Pilot Rock Subwtrshd Sta 33+37 #1 stands at a height of 43 feet and a length of 1056 feet, reflecting its significant contribution to flood risk reduction efforts in the area. Supported by the Natural Resources Conservation Service, this earth dam serves as a key component of the local water resource infrastructure, highlighting the importance of sustainable water management practices in the face of climate change challenges. As water resource and climate enthusiasts, understanding and supporting the maintenance and regulation of such structures is crucial for ensuring the resilience and safety of communities in the face of evolving environmental 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 Pilot Rock Subwtrshd Sta 33+37 #1 -- 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 | → |
| Ocheyedan River Near Spencer | 1,060 cfs | → |
| North Raccoon River Near Sac City | 1,030 cfs | → |
| Maple River At Mapleton | 617 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pilot Rock Subwtrshd Sta 33+37 #1.
Track Pilot Rock Subwtrshd Sta 33+37 #1 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 Pilot Rock Subwtrshd Sta 33+37 #1
Where does the data for Pilot Rock Subwtrshd Sta 33+37 #1 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 Pilot Rock Subwtrshd Sta 33+37 #1.