Dd No 2 Reservoir Report

Last Updated: December 13, 2025

Dd No 2, also known as Cedar Creek Watershed Dam No 2, is a crucial infrastructure owned by the local government in Altoona, Kansas.


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Summary

Designed by USDA NRCS, this Earth-type dam serves the primary purpose of flood risk reduction in the area. With a height of 17 feet and a storage capacity of 471.48 acre-feet, it plays a vital role in protecting the community from potential water-related disasters.

Situated along the Little Cedar Creek-TR, Dd No 2 is regulated by the Kansas Department of Agriculture and undergoes regular inspections and enforcement to ensure its structural integrity. Despite its low hazard potential, the dam is considered to have moderate risk (3) due to its location and surrounding factors. With a spillway width of 122 feet and a maximum discharge of 868 cubic feet per second, Dd No 2 is equipped to handle excess water flow during heavy rainfall events.

Although the dam's completion year is not specified, its design and construction by the Natural Resources Conservation Service demonstrate a commitment to water resource management and climate resilience. With its strategic location and functional features, Dd No 2 stands as a critical asset in safeguarding the local community and surrounding areas from the impacts of flooding and water-related emergencies.

Dam Length

2000

Dam Height

17

River Or Stream

LITTLE CEDAR CREEK-TR

Primary Dam Type

Earth

Surface Area

21.84

Hydraulic Height

15

Nid Storage

471.48

Structural Height

17

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

17
       
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.