Gs Dd No 48 (Hillyer) Reservoir Report
Nearby: Irrigantion Dam Dd No 133
Last Updated: December 13, 2025
Gs Dd No 48 (Hillyer) is a local government-owned dam located in Brown County, Kansas, specifically on the PONY CREEK-TR.
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Summary
Built in 1986, this earth-type dam stands at a height of 29 feet and stretches for 630 feet, with a storage capacity of 125 acre-feet. Its primary purpose is flood risk reduction, serving the community by mitigating potential flooding events in the area.
Despite its relatively low hazard potential and moderate risk assessment, Gs Dd No 48 (Hillyer) has not been rated for its condition assessment. The dam does not have an emergency action plan in place, and there is limited information available regarding its current state of maintenance and safety measures. With a drainage area of 0.23 square miles and a maximum discharge rate of 1071 cubic feet per second, this dam plays a crucial role in managing water resources in the region.
Climate and water resource enthusiasts should take note of Gs Dd No 48 (Hillyer) as a key infrastructure for flood risk reduction in Brown County, Kansas. Its strategic location on the PONY CREEK-TR river, along with its moderate risk assessment, highlights the importance of ongoing monitoring and maintenance to ensure the safety and effectiveness of this earth dam. With a storage capacity of 125 acre-feet and a length of 630 feet, this dam serves as a crucial component of the local water management system, emphasizing the need for continued attention and investment in its upkeep.
Year Completed |
1986 |
Dam Length |
630 |
Dam Height |
29 |
River Or Stream |
PONY CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.23 |
Nid Storage |
125 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
29 |
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.
Gs Dd No 48 (Hillyer)