Summary
Completed in 1940, this earth dam stands at a height of 9 feet with a hydraulic height of 9 feet and a structural height of 14 feet. It spans a length of 80 feet and has a storage capacity of 1271 acre-feet, with a normal storage level of 587 acre-feet and a surface area of 158 acres. The dam, situated on Dry Creek, is regulated by the Nebraska Department of Natural Resources and undergoes regular state inspections.
Despite its low hazard potential, Shell Lake Dam has been assessed to be in poor condition as of March 2018. The dam has not been modified over the years, and its emergency action plan status and risk assessment remain unspecified. With a maximum discharge capacity of 1340 cubic feet per second, the dam serves as a vital component for managing water resources in the region. As climate change continues to impact water availability and quality, structures like Shell Lake Dam play a crucial role in maintaining ecological balance and supporting wildlife habitats.
Water resource and climate enthusiasts monitoring Shell Lake Dam should remain vigilant about its condition and the potential risks associated with its operation. Regular inspections, maintenance efforts, and updated emergency action plans are essential for ensuring the safety and effectiveness of this earth dam. As climate variability increases, the role of such structures in water management becomes even more critical, emphasizing the need for sustainable practices and proactive measures to adapt to changing environmental conditions.
Year Completed |
1940 |
Dam Length |
80 |
Dam Height |
9 |
River Or Stream |
DRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
158 |
Hydraulic Height |
9 |
Drainage Area |
3 |
Nid Storage |
1271 |
Structural Height |
14 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Shell Lake Dam