Dd No 133 Reservoir Report
Nearby: Irrigantion Dam Gs Dd No 48 (Hillyer)
Last Updated: December 13, 2025
Located in Brown County, Kansas, Dd No 133, also known as Pony Creek Joint Dist No 78 Site 133, is a local government-owned earth dam with a primary purpose of flood risk reduction.
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Summary
Designed by USDA SCS, this dam stands at a structural height of 28 feet and has a hydraulic height of 25 feet. It has a normal storage capacity of 20.74 acre-feet and a maximum storage capacity of 50.29 acre-feet, making it a crucial infrastructure for managing water resources in the area.
The dam, situated on Pony Creek-TR, has a low hazard potential and a moderate risk assessment score of 3. Despite not being rated for condition assessment, Dd No 133 is inspected, permitted, and regulated by the state of Kansas. With a spillway width of 62 feet and a maximum discharge capacity of 283 cubic feet per second, this dam plays a vital role in mitigating flood risks and ensuring the safety of nearby communities.
Although Dd No 133 has not been modified in recent years and lacks emergency action plans, its presence serves as a crucial asset for flood risk reduction in the region. With its strategic location and design features, this dam exemplifies the importance of sustainable water resource management and climate resilience efforts in safeguarding communities against potential flooding events.
Dam Length |
630 |
Dam Height |
23.3 |
River Or Stream |
PONY CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
3.52 |
Hydraulic Height |
25 |
Nid Storage |
50.29 |
Structural Height |
28 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Nemaha River At Falls City
|
310cfs |
Missouri River At Rulo
|
26600cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Turkey C Nr Seneca
|
14cfs |
Tarkio River At Fairfax Mo
|
55cfs |
Little Nemaha River At Auburn
|
82cfs |
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.
Dd No 133