Dam Report

Fish Lake dam

Oregon, USA Little Butte Creek Hazard High
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Dam height
46ft
Hazard rating
High
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Fish Lake -- None dam
Fish Lake None · Little Butte Creek
About this dam

Fish Lake

Fish Lake in Oregon is a captivating water resource managed by the Bureau of Reclamation for flood risk reduction, hydroelectric power generation, irrigation, and recreation purposes. This rockfill dam, completed in 1907, stands at a height of 46 feet with a hydraulic height of 28 feet and a structural height of 50 feet. The dam has a storage capacity of 9,397 acre-feet, covering a surface area of 415 acres and serving a drainage area of 24 square miles.

Located in Jackson County, Fish Lake is situated along Little Butte Creek and offers a picturesque setting for outdoor enthusiasts to enjoy various recreational activities. With a spillway width of 311 feet and a maximum discharge of 1,700 cubic feet per second, the dam's high hazard potential is mitigated through regular inspections and risk assessments. The dam underwent modifications in 1997 to enhance its hydraulic, seismic, and structural integrity, ensuring the safety and reliability of this vital water resource for the surrounding community.

Fish Lake's rich history and ongoing management by the Bureau of Reclamation make it a significant landmark in Oregon's water infrastructure landscape. With its multiple purposes and strategic location, Fish Lake continues to play a crucial role in flood control, water supply, and recreational opportunities for residents and visitors alike. Its engineering design, operational efficiency, and regulatory oversight contribute to the sustainable utilization of this valuable water resource amidst changing climate conditions and evolving water management practices.

StateNone
River / streamLittle Butte Creek
NID IDOR00021
Owner typeFederal
Primary purposeFlood Risk Reduction
Dam typeRockfill
Year built1907
Dam height46 ft
Dam length1,020 ft
Max storage9,397 AF
Normal storage7,897 AF
Surface area415.0 ac
Drainage area24.0 sq mi
Hazard potentialHigh
ConditionNot Available
Last inspectionWed, 24 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 Fish Lake -- inflows here typically show up in storage 24-72 hours later.

Track Fish Lake 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 Fish Lake

Where does the data for Fish Lake 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.

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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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