Wallace Dam 1 Reservoir Report
Nearby: Hay Creek Wallace Dam Indian Dam No.1
Last Updated: December 6, 2025
Wallace Dam 1 is a privately owned structure located in Ardmore, Sioux, Nebraska, on TR-Indian Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1947, this earth dam stands at a height of 15 feet with a length of 620 feet, designed primarily for irrigation purposes. The dam has a storage capacity of 77 acre-feet, with a normal storage level of 41 acre-feet, and covers a surface area of 10 acres. Despite being of low hazard potential, the dam is regularly inspected by the Nebraska Department of Natural Resources, with the last assessment conducted in July 2018 revealing a fair condition.
Owned and regulated by a private entity, Wallace Dam 1 is subject to state jurisdiction and enforcement, with permits and inspections conducted by the NE DNR. The dam's structure includes buttress and stone cores with a soil foundation, supporting its hydraulic height of 15 feet. The dam's location in a congressional district represented by Adrian Smith ensures legislative oversight, while its proximity to the Omaha District of the US Army Corps of Engineers underscores the importance of water resource management in the region. With a history of irrigation-focused operations, Wallace Dam 1 plays a crucial role in supporting agricultural activities in the surrounding area, highlighting the significance of sustainable water resource management in the face of changing climate patterns.
Year Completed |
1947 |
Dam Length |
620 |
Dam Height |
15 |
River Or Stream |
TR-INDIAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
15 |
Nid Storage |
77 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
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.
Wallace Dam 1