Mayes Lagoon 1 Dam Reservoir Report
Last Updated: December 13, 2025
Mayes Lagoon 1 Dam, located in Phelps County, Nebraska, was completed in 2009 and serves as a private water resource with a primary purpose classified as 'Other'.
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Summary
The dam stands at a height of 13 feet and has a structural height of 19 feet, with a length of 435 feet. It has a maximum storage capacity of 95 acre-feet and a normal storage level of 41.6 acre-feet, covering a surface area of 4.9 acres and draining an area of 0.2 square miles.
Managed by the Nebraska Department of Natural Resources, Mayes Lagoon 1 Dam is regulated by the state, with inspections conducted every five years to ensure its structural integrity. Despite being classified as having a low hazard potential, the dam is considered to be in satisfactory condition as of the last assessment in June 2018. The surrounding area is not at high risk of inundation, as indicated by the lack of preparedness measures such as Emergency Action Plans or inundation maps.
Overall, Mayes Lagoon 1 Dam serves as a crucial water management infrastructure in Nebraska, providing storage and drainage for the local area. With its low hazard potential and satisfactory condition, the dam plays a vital role in water resource management while ensuring the safety of the surrounding community. Its design as an earth dam with a stone core and soil foundation reflects a balance between structural integrity and environmental considerations in addressing water resource and climate challenges.
Year Completed |
2009 |
Dam Length |
435 |
Dam Height |
13 |
River Or Stream |
NONE |
Primary Dam Type |
Earth |
Surface Area |
4.9 |
Hydraulic Height |
13 |
Drainage Area |
0.2 |
Nid Storage |
95 |
Structural Height |
19 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Platte R Mid Ch
|
1370cfs |
Platte River Near Overton
|
1870cfs |
Spring Creek Nr Overton
|
7cfs |
Elm Creek Nr Elm Creek
|
0cfs |
Buffalo Creek Nr Overton Nebr
|
3cfs |
Platte River Near Kearney
|
1570cfs |
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.
Mayes Lagoon 1 Dam