Dd No 103 Reservoir Report

Last Updated: December 6, 2025

Dd No 103, located in Lawrence, Kansas, is a local government-owned earth dam designed by King Engineering Inc.


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Summary

The dam was completed in 1997 and serves the primary purpose of flood risk reduction along Washington Creek. With a height of 39 feet and a length of 750 feet, Dd No 103 has a storage capacity of 241.8 acre-feet and a drainage area of 0.67 square miles. The dam has a low hazard potential and is currently rated as not assessed for condition.

Managed by the Kansas Department of Agriculture, Dd No 103 is regulated, permitted, inspected, and enforced by the state, ensuring its compliance with safety standards. The dam features an uncontrolled spillway with a width of 40 feet and has no outlet gates or associated structures. While the risk assessment for Dd No 103 is moderate, with a rating of 3, there is no Emergency Action Plan (EAP) prepared or last inspection date reported, suggesting a potential area for improvement in emergency preparedness.

Overall, Dd No 103 plays a critical role in mitigating flood risks in Douglas County, Kansas, and is monitored for any necessary risk management measures. With its strategic location, design features, and state oversight, this dam stands as a valuable asset in protecting the local community from potential water resource challenges and climate-related hazards.

Year Completed

1997

Dam Length

750

Dam Height

39

River Or Stream

WASHINGTON CREEK-TR

Primary Dam Type

Earth

Surface Area

5

Drainage Area

0.67

Nid Storage

241.8

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

39
       
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.