Redmond Ridge East Srs 1 Pond No 1 Reservoir Report

Last Updated: December 14, 2025

Redmond Ridge East Srs 1 Pond No 1 is a local government-owned structure in Washington, specifically in King County, that serves as a flood risk reduction measure.


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Summary

Completed in 2013, this earth dam stands at a hydraulic height of 5 feet and has a storage capacity of 39 acre-feet. Situated offstream from the Snoqualmie River, it plays a crucial role in managing water levels and reducing the potential for flooding in the area.

Despite its high hazard potential, a recent inspection in April 2018 deemed the structure to be in satisfactory condition. Regular inspections occur every 5 years to ensure its continued effectiveness in flood risk reduction. The Washington Department of Ecology oversees the regulation, permitting, inspection, and enforcement of this dam, highlighting the state's commitment to water resource management and climate resilience. With its strategic location and design, Redmond Ridge East Srs 1 Pond No 1 stands as a vital infrastructure asset in safeguarding the community against potential flooding events.

Year Completed

2013

River Or Stream

Offstream - Snoqualmie R.

Primary Dam Type

Earth

Hydraulic Height

5

Drainage Area

0.07

Nid Storage

39

Structural Height

5

Hazard Potential

High

Foundations

Soil

Nid Height

5
       
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.