Rowan Dam (11-34-18w) Reservoir Report
Last Updated: December 13, 2025
Rowan Dam (11-34-18w) is a privately owned earth dam located in Keya Paha, Nebraska, along the Springs Tr-Keya Paha River.
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Summary
The dam was completed in 1970 and serves primarily for irrigation purposes, with a storage capacity of 22 acre-feet. Standing at a height of 27 feet, the dam has a hydraulic height of 23 feet and a length of 300 feet, providing water for approximately 4 acres of surface area and draining a 0.1 square mile drainage area.
Managed by the Nebraska Department of Natural Resources, Rowan Dam has a low hazard potential and was last inspected in June 2015, with a satisfactory condition assessment. The dam has a regular inspection frequency of 10 years and meets state regulatory requirements for inspection, permitting, and enforcement. Although there are no associated structures or spillways, Rowan Dam plays a crucial role in sustaining irrigation activities in the region and contributes to the overall water resource management in Nebraska. With its strategic location and design, the dam ensures a reliable water supply for agricultural purposes and supports the local ecosystem along the Keya Paha River.
Year Completed |
1970 |
Dam Length |
300 |
Dam Height |
27 |
River Or Stream |
SPRINGS TR-KEYA PAHA RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
23 |
Drainage Area |
0.1 |
Nid Storage |
22 |
Structural Height |
27 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Niobrara River At Mariaville
|
1530cfs |
Keya Paha R At Wewela Sd
|
54cfs |
Long Pine Creek Near Riverview
|
188cfs |
Platte Creek Near Platte
|
3cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Niobrara River Near Sparks
|
934cfs |
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.
Rowan Dam (11-34-18w)