Prairie Cr. No. A-2-2 (Knopp) Dam
Prairie Cr. No. A-2-2 (Knopp)
Prairie Creek No. A-2-2 (Knopp), also known as Knepp Lake, is a local government-owned earth dam located in Daviess County, Indiana. Constructed in 1961 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the unnamed tributary Prairie Creek. With a dam height of 21 feet and a storage capacity of 253 acre-feet, this structure plays a crucial role in managing water resources in the area.
Despite its importance, Prairie Creek No. A-2-2 (Knopp) is currently assessed as having a poor condition, with a low hazard potential but a high risk assessment rating of 2. The last inspection took place in February 2016, with a scheduled inspection frequency of 5 years. The dam lacks a spillway and outlet gates, further highlighting the need for proper maintenance and risk management measures to ensure the safety of the surrounding communities and the effective operation of the structure.
As water resource and climate enthusiasts, understanding the critical role of infrastructure like Prairie Creek No. A-2-2 (Knopp) in mitigating flood risks and managing water resources is essential. By staying informed about the condition and maintenance needs of such structures, we can contribute to the preservation of these vital assets and support sustainable water management practices in our communities.
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 Prairie Cr. No. A-2-2 (Knopp) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Fork White River At Shoals | 4,420 cfs | → |
| White River At Newberry | 2,460 cfs | → |
| White River Above Petersburg | 1,500 cfs | → |
| White River At Petersburg | 9,720 cfs | → |
| Patoka River At Jasper | 321 cfs | → |
| Patoka River At Winslow | 689 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Prairie Cr. No. A-2-2 (Knopp).
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Prairie Cr. No. A-2-2 (Knopp)
Where does the data for Prairie Cr. No. A-2-2 (Knopp) 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.