Clear Creek 22-A Reservoir Report
Last Updated: December 15, 2025
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.
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Summary
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.
Year Completed |
1975 |
Dam Length |
1895 |
Dam Height |
48 |
River Or Stream |
JOHNSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
77 |
Hydraulic Height |
46 |
Drainage Area |
17.6 |
Nid Storage |
4973 |
Structural Height |
53.8 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
54 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wahoo Creek At Ithaca
|
53cfs |
Wahoo Cr At Ashland
|
78cfs |
Platte R Nr Ashland
|
6290cfs |
Platte River Nr Leshara
|
5270cfs |
Elkhorn River At Waterloo
|
1120cfs |
Rock Creek Near Ceresco
|
14cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Linoma
|
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Ashland RV Campground
|
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Saunders County Fairgrounds Campground
|
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Eugene T. Mahoney State Park
|
Clear Creek 22-A
Memphis Lake SRA