Richard Guilliams Dam Reservoir Report
Nearby: Ankrom Dam Zentner Dam
Last Updated: December 13, 2025
Richard Guilliams Dam, located in Nemaha, Nebraska, is a privately owned earth dam designed by USDA NRCS for grade stabilization purposes along the TR-DEROIN CREEK.
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Summary
Completed in 2005, this dam stands at a height of 31.6 feet and has a storage capacity of 56.8 acre-feet, with a normal storage level of 14.8 acre-feet. The dam's construction was regulated by the Nebraska Department of Natural Resources (DNR), and it undergoes regular inspection, with the last assessment in 2017 rating its condition as satisfactory.
With a low hazard potential, Richard Guilliams Dam serves an essential role in managing water resources in the area, providing flood control and grade stabilization benefits. Its location in a rural setting underscores its importance in protecting the surrounding community from potential flooding events. The dam's construction and design highlight the collaborative efforts between private ownership and state regulatory agencies to ensure its effectiveness and safety for the region.
As water resource and climate enthusiasts, the Richard Guilliams Dam stands as a testament to the importance of proper infrastructure in managing water resources and mitigating the impacts of climate variability. Its role in stabilizing the creek's flow and reducing erosion showcases the critical need for sustainable water management practices. By utilizing earth and stone materials for construction, the dam balances functionality with environmental considerations, ensuring the long-term resilience of the surrounding ecosystem.
Year Completed |
2005 |
Dam Length |
570 |
Dam Height |
31.6 |
River Or Stream |
TR-DEROIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
3.8 |
Hydraulic Height |
31.4 |
Drainage Area |
0.31 |
Nid Storage |
56.8 |
Structural Height |
33.6 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little Nemaha River At Auburn
|
82cfs |
Tarkio River At Fairfax Mo
|
55cfs |
Big Nemaha River At Falls City
|
310cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Missouri River At Rulo
|
26600cfs |
Nishnabotna River Above Hamburg
|
605cfs |
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.
Richard Guilliams Dam