Lewis Dam 3714 Reservoir Report
Nearby: Siel Farms Dam Cline South Dam
Last Updated: December 5, 2025
Lewis Dam 3714, located in Riverton, Nebraska, is a privately owned structure built in 1960 for the primary purpose of flood risk reduction along TR-LOHFF Creek.
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Summary
This earth dam stands at a height of 13.1 feet and has a storage capacity of 54.5 acre-feet, with a normal storage level of 28.1 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2017 was reported as poor, highlighting the need for potential maintenance or rehabilitation efforts in the future.
Managed by the Nebraska Department of Natural Resources, Lewis Dam 3714 spans 400 feet in length and covers a surface area of 8.6 acres, serving as a crucial infrastructure for water resource management in the region. The dam is subject to state regulation and inspection, with enforcement measures in place to ensure its structural integrity and public safety. While the dam has not undergone significant modifications over the years, its last inspection in 2017 emphasized the importance of regular monitoring and maintenance to address any potential risks associated with its condition.
With its strategic location and essential role in flood risk mitigation, Lewis Dam 3714 serves as a key asset in protecting the surrounding Franklin County community from potential water-related disasters. As climate change continues to impact weather patterns and water resources, the dam's significance in managing floodwaters and ensuring water security for the region becomes increasingly vital. Ongoing monitoring, maintenance, and potential upgrades will be crucial to enhancing the dam's effectiveness and resilience in the face of evolving environmental challenges.
Year Completed |
1960 |
Dam Length |
400 |
Dam Height |
13.1 |
River Or Stream |
TR-LOHFF CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.6 |
Hydraulic Height |
13.1 |
Drainage Area |
2.7 |
Nid Storage |
54.5 |
Structural Height |
13.1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
13 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Republican River At Guide Rock
|
35cfs |
White Rock C Nr Burr Oak
|
5cfs |
Nf Solomon R At Portis
|
22cfs |
Prairie Dog C Nr Woodruff
|
0cfs |
Nf Solomon R At Glade
|
9cfs |
Republican River Near Orleans
|
59cfs |
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.
Lewis Dam 3714