Spring Creek 7-B Reservoir Report
Nearby: Spring Creek 7-C Spring Creek 6-A
Last Updated: December 6, 2025
Located in Johnson, Nebraska, Spring Creek 7-B is a local government-owned flood risk reduction structure designed by the USDA NRCS.
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Summary
Completed in 1971, this earth dam stands at a height of 33 feet with a hydraulic height of 33 feet and a structural height of 34 feet. With a storage capacity of 211 acre-feet, it serves the primary purpose of flood risk reduction for the surrounding area, with a drainage area of 0.7 square miles.
Managed by the Nebraska Department of Natural Resources, Spring Creek 7-B has a low hazard potential and is in satisfactory condition as of the last assessment in 2016. The dam's normal storage capacity is 45 acre-feet, with a maximum discharge of 1,283 cubic feet per second. With a surface area of 8 acres and a length of 800 feet, this structure plays a crucial role in mitigating flood risks in the region and protecting the local community from potential water-related disasters.
As a crucial part of the local water resource infrastructure, Spring Creek 7-B undergoes regular inspections with a frequency of five years to ensure its continued functionality and safety. With its strategic location along TR-Spring Creek and its vital role in managing water flow and storage, this dam exemplifies the importance of sustainable water resource management and climate resilience in the face of changing environmental conditions.
Year Completed |
1971 |
Dam Length |
800 |
Dam Height |
33 |
River Or Stream |
TR-SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
33 |
Drainage Area |
0.7 |
Nid Storage |
211 |
Structural Height |
34 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Nemaha River At Auburn
|
82cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Missouri River At Nebraska City
|
22500cfs |
Weeping Water Creek At Union
|
20cfs |
Nishnabotna River Above Hamburg
|
1350cfs |
Salt Creek At Roca
|
5cfs |
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.
Spring Creek 7-B