Dam Report

Curlew Valley dam

Idaho, USA Deep Creek Great Salt Lake Hazard Significant
Today high
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Tonight low
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Dam height
41ft
Hazard rating
Significant
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Curlew Valley -- None dam
Curlew Valley None · Deep Creek Great Salt Lake
About this dam

Curlew Valley

Curlew Valley, also known as Stone Reservoir, is a private water resource located in Oneida, Idaho. This reservoir, completed in 1911, serves a variety of purposes, including water storage and irrigation for the surrounding area. With a storage capacity of 3800 acre-feet and a significant hazard potential, Curlew Valley plays a crucial role in managing water resources in the region.

The dam at Curlew Valley is an earth-fill structure with a height of 40.5 feet and a hydraulic height of 35.5 feet. It spans a length of 1100 feet and has a spillway width of 84 feet. The reservoir is regulated by the Idaho Department of Water Resources and undergoes regular inspections to ensure its safety and functionality. Despite its poor condition assessment, efforts are being made to mitigate risks and manage the very high potential for emergencies.

The area around Curlew Valley is characterized by its unique geographical features and proximity to Deep Creek and the Great Salt Lake. This reservoir, managed by private owners, is a vital component of the water infrastructure in the region and contributes to the overall water management efforts in Idaho. For water resource and climate enthusiasts, Curlew Valley presents an interesting case study in the intersection of water conservation, infrastructure maintenance, and environmental stewardship.

StateNone
River / stream Deep Creek Great Salt Lake
NID IDID00007
Owner typePrivate
Primary purposeOther
Year built1911
Dam height41 ft
Dam length1,100 ft
Normal storage3,800 AF
Surface area247.0 ac
Drainage area253.0 sq mi
Hazard potentialSignificant
ConditionPoor
Last inspectionWed, 10 Jun 2020 00:00:00 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 Curlew Valley -- inflows here typically show up in storage 24-72 hours later.

Track Curlew Valley 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 Curlew Valley

Where does the data for Curlew Valley 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 Significant 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.

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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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