Dam Report

Forcia And Larsen Log Pond dam

Oregon, USA Elk Creek Hazard Significant
Today high
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Tonight low
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Dam height
19ft
Hazard rating
Significant
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Forcia And Larsen Log Pond -- None dam
Forcia And Larsen Log Pond None · Elk Creek
About this dam

Forcia And Larsen Log Pond

Forcia and Larsen Log Pond, located in Lane County, Oregon, is a private water resource structure regulated by the Oregon Water Resources Department. Built in 1923, this dam on Elk Creek stands at a height of 19 feet and has a storage capacity of 90 acre-feet. With a significant hazard potential, the dam's primary purpose and type are categorized as "Other," and it serves as a key feature in managing water resources in the region.

The dam's inspection frequency is every three years, with the last inspection conducted in February 2020. The structure's condition assessment is currently listed as "Not Rated," indicating a need for further evaluation. With a spillway type undefined and outlet gates using a slide mechanism, the dam poses risks that require effective risk management measures to ensure the safety and sustainability of the surrounding environment and communities. As water resource and climate enthusiasts, staying informed about the status and management of structures like Forcia and Larsen Log Pond is crucial for promoting responsible stewardship of our natural resources.

StateNone
River / streamElk Creek
NID IDOR00099
Owner typePrivate
Primary purposeOther
Dam typeOther
Year built1923
Dam height19 ft
Dam length160 ft
Max storage90 AF
Normal storage90 AF
Surface area19.0 ac
Drainage area7.9 sq mi
Hazard potentialSignificant
ConditionNot Rated
Last inspectionTue, 25 Feb 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 Forcia And Larsen Log Pond -- inflows here typically show up in storage 24-72 hours later.

Track Forcia And Larsen Log Pond 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 Forcia And Larsen Log Pond

Where does the data for Forcia And Larsen Log Pond 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.