German #2 Reservoir Report

Last Updated: December 5, 2025

German #2 is a privately owned earth dam located in Fort Lupton, Colorado, with a primary purpose of irrigation.


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Summary

Built in 1887, it stands at a height of 10 feet and stretches across a length of 2,271 feet. The dam has a storage capacity of 122 acre-feet, with a normal storage of 35 acre-feet and a surface area of 15 acres.

Despite being classified as having a low hazard potential, German #2 is considered to have a high risk level due to its condition assessment being rated as 'Not Rated'. The last inspection was conducted in 1987, with a frequency of every 6 years. The dam does not have a spillway and is not associated with any locks or outlet gates.

Water resource and climate enthusiasts may find German #2 an intriguing structure to study, given its historical significance in the area and the potential risks associated with its current condition. Further research and monitoring may be necessary to ensure the safety and integrity of this irrigation dam in the future.

Year Completed

1887

Dam Length

2271

Dam Height

10

River Or Stream

BIG DRY CREEK-OS

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

10

Nid Storage

122

Structural Height

10

Hazard Potential

Low

Nid Height

10
       
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.