Summary
Built in 1940 by the USA WPA, this earth-type dam stands at a height of 31 feet and has a storage capacity of 240 acre-feet. It serves the primary purpose of providing water supply to the surrounding area, with a normal storage capacity of 175 acre-feet.
Managed by the local government, Spriggs Rock is regulated, inspected, and permitted by the Kansas Department of Agriculture. The dam is situated on the Little Arkansas River-TR, with a drainage area of 5.4 square miles. Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level, with a risk assessment rating of 3.
With a spillway width of 122 feet and an uncontrolled spillway type, Spriggs Rock has not been modified in recent years and is in a condition that has not been rated. While it has not had an Emergency Action Plan (EAP) prepared or updated, the dam meets regulatory guidelines and is equipped with emergency contacts. Overall, Spriggs Rock is an essential water resource structure in Kansas, serving the community with reliable water supply while adhering to state regulations and safety standards.
Year Completed |
1940 |
Dam Length |
1100 |
Dam Height |
31 |
River Or Stream |
LITTLE ARKANSAS RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
31.2 |
Hydraulic Height |
25 |
Drainage Area |
5.4 |
Nid Storage |
240 |
Structural Height |
31 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cow C Nr Lyons
|
14cfs |
Smoky Hill R Nr Langley
|
68cfs |
Arkansas R Nr Nickerson
|
120cfs |
Smoky Hill R At Lindsborg
|
108cfs |
Smoky Hill R At Ellsworth
|
26cfs |
L Arkansas R At Alta Mills
|
31cfs |
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.
Spriggs Rock