Fire Mountain Boy Scout Camp Dam B Reservoir Report

Last Updated: December 15, 2025

Fire Mountain Boy Scout Camp Dam B, also known as Cultus Dam B, is a private dam located in Skagit, Washington, near Clear Lake.


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Summary

Built in 1971, this earth dam stands at a height of 9 feet and has a maximum storage capacity of 350 acre-feet. The primary purpose of this recreational structure is to provide water storage for activities at the Boy Scout camp.

Managed by the Washington Department of Ecology, Fire Mountain Boy Scout Camp Dam B is regulated, inspected, and enforced by the state. Despite being classified as having a high hazard potential, the dam's condition is deemed satisfactory according to the latest assessment in December 2019. With a drainage area of 0.39 square miles and a maximum discharge capacity of 50 cubic feet per second, this dam plays a crucial role in supporting the local ecosystem and recreational activities in the area.

Overall, Fire Mountain Boy Scout Camp Dam B serves as a vital water resource for the surrounding community and offers a glimpse into the intersection of water management and outdoor recreation. With its picturesque location along the Tr-E Fork Mookachamps Creek, this dam epitomizes the importance of sustainable infrastructure for both environmental conservation and public enjoyment.

Year Completed

1971

Dam Length

310

River Or Stream

Tr-E Fork Mookachamps Creek

Primary Dam Type

Earth

Surface Area

32.5

Hydraulic Height

9

Drainage Area

0.39

Nid Storage

350

Structural Height

9

Hazard Potential

High

Foundations

Soil

Nid Height

9
       
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.