Newcastle Vista Pond 3 Reservoir Report
Last Updated: February 17, 2026
Newcastle Vista Pond 3, located in Newcastle, Washington, is a vital flood risk reduction infrastructure managed by the local government.
Summary
Designed by Triad and completed in 2012, this earth dam structure stands at a hydraulic height of 11 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 20 acre-feet and a drainage area of 0.11 square miles, this dam plays a crucial role in managing water flow and protecting the surrounding area from potential inundation.
Despite having a high hazard potential, Newcastle Vista Pond 3 is currently assessed to be in fair condition as of the last inspection in August 2018. The dam's emergency action plan (EAP) was last revised in May 2019, ensuring that appropriate measures are in place for potential emergencies. With a maximum discharge capacity of 870 cubic feet per second, this infrastructure is equipped to handle significant water flow during periods of high rainfall or flooding events. Its location in King County, Washington, underscores the importance of maintaining and monitoring this essential water resource in a region susceptible to climate variability and extreme weather events.
Overall, Newcastle Vista Pond 3 stands as a testament to effective water resource management and climate resilience efforts in the region. As part of the flood risk reduction strategy, this dam serves as a critical piece of infrastructure that not only mitigates potential hazards but also contributes to the overall water management and safety of the area. With regular inspections, maintenance, and emergency preparedness measures in place, Newcastle Vista Pond 3 represents a proactive approach to addressing the challenges posed by climate change and ensuring the protection of communities in the face of evolving environmental threats.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Year Completed |
2012 |
Dam Length |
700 |
Primary Dam Type |
Earth |
Hydraulic Height |
11 |
Drainage Area |
0.11 |
Nid Storage |
20 |
Structural Height |
11 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
11 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
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.
Newcastle Vista Pond 3
Sammamish Lake Near Redmond
I 90 Trail Bellevue