Clear Creek 22-A dam
Clear Creek 22-A
Clear Creek 22-A is a local government-owned Earth dam located in Saunders, Nebraska, designed by USDA NRCS and completed in 1975 for flood risk reduction along Johnson Creek. This significant dam stands at a height of 48 feet with a hydraulic height of 46 feet and a structural height of 53.8 feet, providing a maximum storage capacity of 4,973 acre-feet and a normal storage capacity of 487 acre-feet over a drainage area of 17.6 square miles.
With a length of 1,895 feet and a surface area of 77 acres, Clear Creek 22-A plays a crucial role in managing flood risks in the region, boasting a maximum discharge capacity of 8,981 cubic feet per second. The dam is regulated by the Nebraska Department of Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and functionality. Despite its significant hazard potential, the dam's condition assessment as of June 2019 was reported as satisfactory, reflecting the ongoing efforts to maintain and monitor its integrity.
As a key component of flood risk reduction infrastructure in the area, Clear Creek 22-A serves as a vital resource for water resource and climate enthusiasts interested in the management and regulation of dams for environmental and community safety. Its design by the Natural Resources Conservation Service and its strategic location along Johnson Creek highlight the importance of proactive measures in mitigating potential hazards and ensuring effective water management practices in Saunders County, Nebraska.
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 Clear Creek 22-A -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wahoo Creek At Ithaca | 344 cfs | → |
| Wahoo Cr At Ashland | 366 cfs | → |
| Platte R Nr Ashland | 3,390 cfs | → |
| Platte River Nr Leshara | 1,580 cfs | → |
| Elkhorn River At Waterloo | 1,090 cfs | → |
| Rock Creek Near Ceresco | 1,370 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clear Creek 22-A.
Boat launches
- Memphis Lake Sra
- Graske Crossing Boat Ramp
- Waterloo River Access
- North 242nd Street Douglas County
- Lake Wanahoo Sra
- Main Boat Ramp
Track Clear Creek 22-A 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 Clear Creek 22-A
Where does the data for Clear Creek 22-A 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 Significant 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 Clear Creek 22-A.