Monument #2 Reservoir Report

Last Updated: December 5, 2025

Monument #2, also known as Crozier or Krozier, is a privately owned earth dam located in Mesa County, Colorado.


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Summary

Constructed in 1954, this dam serves primarily for irrigation purposes along the Monument Creek-TR. With a height of 19 feet and a maximum storage capacity of 400 acre-feet, Monument #2 covers a surface area of 30 acres and has a drainage area of 1 square mile.

Managed by the Colorado Department of Water Resources, Monument #2 is regulated, inspected, and enforced by state authorities to ensure its structural integrity and safety. Despite being classified as having a low hazard potential and fair condition assessment, the dam is considered to have a moderate risk level with a risk assessment rating of 3. The last inspection in August 2020 reported no major issues, and the dam is designed with an uncontrolled spillway and a maximum discharge capacity of 450 cubic feet per second.

Located in Collbran, Colorado, Monument #2 plays a vital role in the local water resource management system. While it currently meets regulatory guidelines, ongoing monitoring and maintenance efforts are essential to mitigate any potential risks and ensure the long-term safety and functionality of this important irrigation infrastructure.

Year Completed

1954

Dam Length

500

Dam Height

19

River Or Stream

MONUMENT CREEK-TR

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

20

Drainage Area

1

Nid Storage

400

Structural Height

19

Hazard Potential

Low

Nid Height

20
       
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.