Snoqualmie Ridge Golf Course Pond M1 Reservoir Report

Last Updated: December 15, 2025

Snoqualmie Ridge Golf Course Pond M1, located in King County, Washington, serves as a crucial water resource for irrigation purposes.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1997, this earth dam structure stands at a structural height of 18 feet with a hydraulic height of 13 feet, providing a storage capacity of 70 acre-feet. The pond covers an area of 4.3 acres and has a drainage area of 0.2 square miles, with a maximum discharge capacity of 112 cubic feet per second.

Managed by a private owner, this pond is regulated by the Washington Department of Ecology, ensuring compliance with state permitting, inspection, and enforcement requirements. Despite being classified as low hazard potential, the condition assessment of this dam is currently rated as "Not Rated". With a primary purpose of irrigation and water supply, Snoqualmie Ridge Golf Course Pond M1 plays a vital role in supporting the water needs of the surrounding area, contributing to the sustainable management of water resources in the region.

As a part of the larger water infrastructure network in Washington, this pond is situated along the Snoqualmie River and falls under the jurisdiction of the Seattle District of the U.S. Army Corps of Engineers. With its strategic location and effective design, Snoqualmie Ridge Golf Course Pond M1 exemplifies the importance of responsible water management practices in mitigating the impacts of climate change and ensuring the availability of water resources for future generations.

Year Completed

1997

Dam Length

240

River Or Stream

tr-Snoqualmie

Primary Dam Type

Earth

Surface Area

4.3

Hydraulic Height

13

Drainage Area

0.2

Nid Storage

70

Structural Height

18

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

18
       
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.