Dam Report

Issaquah Highlands Reid Pond Dam dam

Washington, USA Nf Issaquah Creek - Offstream Hazard High
Today high
--
Tonight low
--
Dam height
38ft
Hazard rating
High
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Issaquah Highlands Reid Pond Dam -- None dam
Issaquah Highlands Reid Pond Dam None · Nf Issaquah Creek - Offstream
About this dam

Issaquah Highlands Reid Pond Dam

The Issaquah Highlands Reid Pond Dam, located in Issaquah, Washington, was completed in 2003 and serves as a critical flood risk reduction structure along the North Fork Issaquah Creek. Designed by Concept Engineering, this earth dam stands at a hydraulic height of 38 feet and a structural height of 32 feet, with a length of 450 feet. With a storage capacity of 37 acre-feet and a drainage area of 0.09 square miles, the dam plays a crucial role in mitigating potential flooding in the region.

Owned by the local government and regulated by the Washington Department of Ecology, the Issaquah Highlands Reid Pond Dam is deemed to have a high hazard potential and is currently in fair condition. Despite its critical role in flood risk reduction, the dam has not undergone significant modifications since its completion and is subject to inspection every five years. With a surface area of 2.25 acres and a normal storage capacity of 33 acre-feet, the dam remains a key infrastructure component in maintaining the safety and resilience of the surrounding community.

The dam's location in King County, Washington, highlights its importance in protecting the region from potential flooding events. With Kim Schrier representing the Congressional District 08, where the dam is situated, the structure's maintenance and oversight play a crucial role in ensuring the safety and well-being of local residents. As climate change continues to impact water resources and weather patterns, the Issaquah Highlands Reid Pond Dam stands as a vital piece of infrastructure in safeguarding the community against the risks of flooding.

StateNone
River / streamNf Issaquah Creek - Offstream
NID IDWA00680
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built2003
Dam length450 ft
Max storage37 AF
Normal storage33 AF
Surface area2.3 ac
Drainage area0.1 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionThu, 26 Apr 2018 12:00:00 GMT

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.
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.
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.

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, environmental 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.
Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Issaquah Highlands Reid Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Issaquah Highlands Reid Pond Dam in the Snoflo app

Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.

FAQ

About Issaquah Highlands Reid Pond Dam

Where does the data for Issaquah Highlands Reid Pond Dam come from?

Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.

What does the High hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.