Crystal Lake Dam Reservoir Report
Last Updated: December 13, 2025
Crystal Lake Dam, located in Redmond, Washington, is a privately owned earth dam that was completed in 1931 for the primary purpose of recreation.
°F
°F
mph
Wind
%
Humidity
Summary
Situated on Daniels Creek, this dam boasts a hydraulic height of 7 feet and a structural height of 6 feet, providing a storage capacity of 250 acre-feet with a normal storage level of 150 acre-feet. The dam has a surface area of 54 acres and a drainage area of 3.31 square miles, making it a significant water resource in the region.
With a hazard potential classified as high and a fair condition assessment as of July 2015, Crystal Lake Dam is subject to state regulation, inspection, and enforcement by the Washington Department of Ecology. The dam has a history of maintaining its integrity but with a need for regular inspections every 5 years to ensure its continued safety. The surrounding area, including Congressional District 01 represented by Suzan K. DelBene, relies on this dam for recreation and water storage, highlighting its importance for both local residents and visitors alike.
Despite its age, Crystal Lake Dam remains a vital component of the water infrastructure in Snohomish, Washington, providing essential storage for recreational activities and potentially mitigating flood risks in the area. With its picturesque location and historical significance, this dam serves as a reminder of the importance of maintaining and managing water resources effectively in the face of changing climate conditions. As a privately owned structure with state oversight, Crystal Lake Dam represents a successful partnership between public and private entities to ensure the safety and sustainability of water resources for future generations.
Year Completed |
1931 |
Dam Length |
140 |
River Or Stream |
Daniels Creek |
Primary Dam Type |
Earth |
Surface Area |
54 |
Hydraulic Height |
7 |
Drainage Area |
3.31 |
Nid Storage |
250 |
Structural Height |
6 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
7 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Snohomish River Near Monroe
|
102000cfs |
Thornton Creek Near Seattle
|
41cfs |
Pilchuck River Near Snohomish
|
3240cfs |
Snoqualmie River Near Carnation
|
49400cfs |
Mercer Creek Near Bellevue
|
12cfs |
Tolt River Near Carnation
|
2050cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Site 40
Site 39
Site 38
Site 37
Site 36
Crystal Lake Dam
Sammamish Lake Near Redmond
High Bridge, Monroe