Dam Report

Waldo Lake dam

Oregon, USA Little Pudding River Hazard Significant
Today high
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Tonight low
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Dam height
13ft
Hazard rating
Significant
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Waldo Lake -- None dam
Waldo Lake None · Little Pudding River
About this dam

Waldo Lake

Waldo Lake, located in Marion, Oregon, is a stunning private reservoir with a primary purpose of irrigation. Built in 1960, this earth dam stands at a height of 13 feet and has a hydraulic height of 11 feet. With a storage capacity of 56 acre-feet and a surface area of 14 acres, Waldo Lake plays a crucial role in water management in the area. It is situated in the Little Pudding River watershed, providing water for agricultural use in the region.

Managed by the Natural Resources Conservation Service, Waldo Lake has a significant hazard potential and undergoes inspections every three years to ensure its structural integrity. The reservoir is state regulated and permits are required for its operation and maintenance. The dam, with a length of 1200 feet, has an outlet gate in the form of a slide (sluice gate) for water release. Despite its importance for irrigation, Waldo Lake also serves as a recreational spot for water enthusiasts and nature lovers, offering a tranquil setting surrounded by natural beauty in the heart of Oregon.

StateNone
River / streamLittle Pudding River
NID IDOR00349
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1960
Dam height13 ft
Dam length1,200 ft
Max storage56 AF
Normal storage56 AF
Surface area14.0 ac
Drainage area1.4 sq mi
Hazard potentialSignificant
ConditionNot Rated
Last inspectionTue, 09 Apr 2019 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 Waldo Lake -- inflows here typically show up in storage 24-72 hours later.

Track Waldo 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 Waldo Lake

Where does the data for Waldo 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 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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