Frd No 99 Reservoir Report
Nearby: Frd No 103 Frd No 101
Last Updated: December 14, 2025
Frd No 99, also known as Upper Black Vermillion WS Site 99, is a flood risk reduction structure located in Nemaha, Kansas.
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Summary
Owned by the local government, this dam was designed by USDA NRCS and completed in 1979. With a primary purpose of flood risk reduction, Frd No 99 is a crucial infrastructure that helps protect the surrounding area from potential flooding events.
This earth dam stands at a height of 32 feet and has a hydraulic height of 29 feet. It has a storage capacity of 101.43 acre-feet and covers a surface area of 3.81 acres. The dam is equipped with an uncontrolled spillway that is 40 feet wide, allowing for a maximum discharge of 177 cubic feet per second. Despite its low hazard potential and moderate risk assessment, the condition and inspection frequency of Frd No 99 are currently not rated.
Situated along the N Fork Black Vermillion River, Frd No 99 plays a crucial role in managing water resources and mitigating flood risks in the region. With its strategic location and design features, this dam serves as a key asset in the overall water resource management efforts in Nemaha, Kansas. As climate change continues to impact the frequency and intensity of extreme weather events, infrastructure like Frd No 99 will be essential in safeguarding communities and ecosystems from potential flooding disasters.
Year Completed |
1979 |
Dam Length |
720 |
Dam Height |
32 |
River Or Stream |
N FORK BLACK VERMILLION RV-TR |
Primary Dam Type |
Earth |
Surface Area |
3.81 |
Hydraulic Height |
29 |
Drainage Area |
0.25 |
Nid Storage |
101.43 |
Structural Height |
32 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Turkey C Nr Seneca
|
13cfs |
Black Vermillion R Nr Frankfort
|
43cfs |
Big Blue R At Marysville
|
119cfs |
Big Blue R At Barneston Nebr
|
131cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Vermillion C Nr Wamego
|
5cfs |
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.
Frd No 99