Linn And Clark Reservoir Report

Last Updated: December 5, 2025

Linn and Clark, also known as Lake Pagosa or Sullenburger, is a private fish and wildlife pond located in Pagosa Springs, Colorado.


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Summary

Built in 1902, this earth dam stands at a height of 27 feet and has a maximum storage capacity of 1660 acre-feet. The dam's primary purpose is for fish and wildlife conservation, as well as recreational activities.

Despite its small surface area of 106 acres and drainage area of 2 square miles, Linn and Clark has a significant hazard potential due to its uncontrolled spillway type and moderate risk assessment rating. However, the dam's condition was assessed as satisfactory during the last inspection in June 2019, with a satisfactory emergency action plan in place. The dam is under state regulation and inspection by Colorado's Department of Water Resources, ensuring its safety and compliance with regulatory standards.

With its picturesque location in Archuleta County, Colorado, along the Stevens Draw river or stream, Linn and Clark offers a serene environment for water resource and climate enthusiasts to appreciate the importance of maintaining and managing dams for both ecological and recreational purposes.

Year Completed

1902

Dam Length

750

Dam Height

27

River Or Stream

STEVENS DRAW

Primary Dam Type

Earth

Surface Area

106

Hydraulic Height

22

Drainage Area

2

Nid Storage

1660

Structural Height

31

Outlet Gates

Slide (sluice gate) - 1

Hazard Potential

Significant

Nid Height

31
       
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.
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Area Campgrounds