Dd No 1-1a Reservoir Report

Nearby: I-1b B-4

Last Updated: December 5, 2025

Dd No 1-1a is a dam located in Bourbon, Kansas, designed by Agricultural Eng.


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Summary

Assoc. and completed in 1995 for the primary purpose of flood risk reduction. The dam is regulated by the Kansas Department of Agriculture and is in a state jurisdiction with permits, inspections, and enforcement in place. It stands at a height of 37 feet and has a length of 600 feet, providing a storage capacity of 476.29 acre-feet with a normal storage of 43.28 acre-feet.

Situated on Hinton Creek-TR in Bourbon, Kansas, Dd No 1-1a has a low hazard potential and a moderate risk assessment rating of 3. The dam's spillway type is uncontrolled with a width of 75 feet, and it has no outlet gates or associated structures. The last inspection date was in October 1998, with the condition assessment marked as "Not Rated." While the dam does not have an emergency action plan in place, it meets regulatory guidelines and has not been modified since its completion.

Overall, Dd No 1-1a serves as a vital infrastructure for flood risk reduction in the area, maintaining a stable condition and providing moderate risk management measures. Water resource and climate enthusiasts can appreciate the importance of this earth dam in safeguarding the local community against potential flooding events on Hinton Creek-TR in Bourbon, Kansas.

Year Completed

1995

Dam Length

600

Dam Height

37

River Or Stream

HINTON CREEK-TR

Primary Dam Type

Earth

Surface Area

8.03

Drainage Area

1.78

Nid Storage

476.29

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

37
       
Seasonal Comparison

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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.