Little Yellow 13 Reservoir Report

Last Updated: December 13, 2025

Little Yellow 13 is a federal-owned irrigation dam located in Juneau, Wisconsin, along the Danielson Lateral river.


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Summary

Built in 1975, this gravity dam stands at 8 feet tall and spans 2900 feet in length, with a storage capacity of 150 acre-feet. The dam serves multiple purposes including irrigation, recreation, and water supply, making it a vital resource for the surrounding community.

Although categorized as having a low hazard potential, Little Yellow 13 is considered to have a very high risk level, with a risk assessment rating of 1. Despite its condition being labeled as "Not Rated," the dam is monitored with an inspection frequency of 10 years. Emergency preparedness measures, such as an Emergency Action Plan (EAP), have not been reported, raising concerns about the overall safety and management of the structure.

As water resource and climate enthusiasts, it is important to recognize the significance of Little Yellow 13 in providing essential services to the area. Monitoring and maintenance efforts should be prioritized to ensure the safety and longevity of this key infrastructure, especially in the face of increasing climate-related challenges.

Year Completed

1975

Dam Length

2900

Dam Height

8

River Or Stream

DANIELSON LATERAL

Primary Dam Type

Gravity

Surface Area

50

Hydraulic Height

5

Drainage Area

3.7

Nid Storage

150

Structural Height

8

Hazard Potential

Low

Nid Height

8
       
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.