Summary
This earth dam was completed in 1994 with a primary purpose of flood risk reduction along the West Branch Mill Creek. With a height of 31 feet and a length of 550 feet, Dd No 23 has a storage capacity of 300.6 acre-feet and a drainage area of 0.95 square miles.
The dam is regulated by the Kansas Dept. of Agriculture and is under state jurisdiction for permitting, inspection, and enforcement. It has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. Despite being uncontrolled, the spillway of Dd No 23 is 50 feet wide, allowing for a maximum discharge of 1290 cubic feet per second.
For water resource and climate enthusiasts, Dd No 23 presents a fascinating case study in dam infrastructure for flood risk reduction. Its location in Wabaunsee County, Kansas, and its moderate risk assessment of 3 highlight the importance of effective risk management measures in ensuring the safety and functionality of such critical water structures.
Year Completed |
1994 |
Dam Length |
550 |
Dam Height |
31 |
River Or Stream |
WEST BRANCH MILL CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
10.5 |
Drainage Area |
0.95 |
Nid Storage |
300.6 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Kings C Nr Manhattan
|
0cfs |
Mill C Nr Paxico
|
44cfs |
Kansas R At Fort Riley
|
1210cfs |
Kansas R At Wamego
|
1600cfs |
Neosho R At Council Grove
|
4cfs |
Big Blue R Nr Manhattan
|
396cfs |
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 23