Dam Report

Spring Hill Saddle Dam dam

Washington, USA Tr-Stemilt Creek-Offstream Hazard High
Today high
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Tonight low
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Dam height
12ft
Hazard rating
High
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Spring Hill Saddle Dam -- None dam
Spring Hill Saddle Dam None · Tr-Stemilt Creek-Offstream
About this dam

Spring Hill Saddle Dam

Spring Hill Saddle Dam, located in Malaga, Washington, is a key structure in the region's water resource management system. Built in 1918 for the primary purpose of irrigation, this earth dam stands at a structural height of 12 feet and has a maximum storage capacity of 340 acre-feet. The dam serves the community by storing water from Tr-Stemilt Creek-Offstream for agricultural purposes, ensuring a stable water supply for local farmers.

With a drainage area of 0.43 square miles, Spring Hill Saddle Dam plays a crucial role in regulating water flow and ensuring water security in the region. The dam has a high hazard potential but is currently in satisfactory condition, as assessed in May 2018. The Washington Department of Ecology oversees the regulation, inspection, and enforcement of the dam to ensure its safety and compliance with state standards. The dam's emergency action plan is regularly updated and meets guidelines to address any potential risks effectively.

As a symbol of sustainable water management and climate resilience, Spring Hill Saddle Dam continues to support the local community by providing essential irrigation water and recreational opportunities. Its strategic location and design reflect a commitment to responsible water resource management in Chelan County, Washington. Despite its age, the dam remains a critical infrastructure asset, safeguarding water resources for future generations and adapting to the challenges of a changing climate.

StateNone
River / streamTr-Stemilt Creek-Offstream
NID IDWA00360
Owner typePublic Utility
Primary purposeIrrigation
Dam typeEarth
Year built1918
Dam length250 ft
Max storage340 AF
Normal storage280 AF
Surface area33.0 ac
Drainage area0.4 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionWed, 16 May 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.

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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
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Long-term outlook

15-day temperature & precipitation

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

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Spring Hill Saddle Dam -- inflows here typically show up in storage 24-72 hours later.

Track Spring Hill Saddle 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 Spring Hill Saddle Dam

Where does the data for Spring Hill Saddle 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.