Dd Iv-12 Reservoir Report

Last Updated: December 6, 2025

Dd Iv-12 is a local government-owned dam located in Fort Scott, Kansas, designed for flood risk reduction along Mill Creek-TR.


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Summary

Completed in 1998, the earth dam stands at 19 feet tall and spans 1250 feet in length, with a storage capacity of 338.1 acre-feet. Despite its low hazard potential and moderate risk assessment rating, the dam has not been rated for its current condition, highlighting a potential area for further assessment and maintenance.

The dam features an uncontrolled spillway with a width of 40 feet, capable of handling a maximum discharge of 800 cubic feet per second. With its primary purpose being flood risk reduction, Dd Iv-12 plays a crucial role in protecting the surrounding Bourbon County from potential flooding events. The dam's location in a regulated state with permitting, inspection, and enforcement processes in place ensures its compliance with safety standards and regulations, contributing to its overall operational effectiveness.

As a key infrastructure within the Tulsa District of the US Army Corps of Engineers, Dd Iv-12 serves as a vital component in the region's water resource management system. With its strategic positioning and design features, the dam not only mitigates flood risks but also supports the sustainable use of water resources in the area. For water resource and climate enthusiasts, Dd Iv-12 presents an interesting case study in dam engineering and management, showcasing the intersection of infrastructure, environmental protection, and community resilience in the face of changing climate conditions.

Year Completed

1998

Dam Length

1250

Dam Height

19

River Or Stream

MILL CREEK-TR

Primary Dam Type

Earth

Surface Area

8.3

Drainage Area

0.78

Nid Storage

338.1

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

19
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.
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