English Bench Watershed Site 2 dam
English Bench Watershed Site 2
English Bench Watershed Site 2, located in Allamakee, Iowa, is a crucial water resource managed by the USDA NRCS. The dam, completed in 1969, serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. With a dam height of 27 feet and a length of 734 feet, the structure has a storage capacity of 54 acre-feet and covers a surface area of 4 acres.
Managed by the Iowa DNR, this earth dam on the TR-Upper Iowa River is designed for low hazard potential with a moderate risk assessment. Although not currently rated for condition assessment, the dam is inspected, permitted, and regulated by state authorities to ensure its safety and functionality. Notably, the dam has a spillway type of uncontrolled and is situated in a picturesque location near the Mississippi River, offering environmental benefits and recreational opportunities for the community.
Overall, English Bench Watershed Site 2 plays a vital role in water management and conservation efforts in the region. Its importance lies in providing essential services such as flood risk reduction and fire protection while also contributing to the local ecosystem and enhancing the overall water resource infrastructure. As climate change impacts water resources, this site serves as a critical asset for resilience and adaptation to changing environmental conditions in Iowa.
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 English Bench Watershed Site 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Upper Iowa River Near Dorchester | 674 cfs | → |
| Upper Iowa River At Decorah | 357 cfs | → |
| South Fork Root River Near Houston | 235 cfs | → |
| Upper Iowa River At Bluffton | 260 cfs | → |
| Root River Near Houston | 834 cfs | → |
| Yellow River At Ion | 162 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near English Bench Watershed Site 2.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About English Bench Watershed Site 2
Where does the data for English Bench Watershed Site 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 below 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.
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.