Dam Report

North Ottawa dam

Minnesota, USA Judicial Ditch 2 Hazard Significant
Today high
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Tonight low
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Dam height
12ft
Hazard rating
Significant
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North Ottawa -- None dam
North Ottawa None · Judicial Ditch 2
About this dam

North Ottawa

North Ottawa is a crucial flood risk reduction structure located in Tintah, Minnesota, within Grant County. Completed in 2008, this earth dam stands at a height of 18 feet and has a storage capacity of 23,800 acre-feet, serving to protect the surrounding area from potential flooding events. Owned and regulated by the local government, this dam is subject to regular state inspections, ensuring its structural integrity and functionality in times of need.

Situated on the Judicial Ditch 2 river/stream, North Ottawa plays a vital role in managing water flow and mitigating flood risks in the region. With a hazard potential classified as significant, the dam's condition has been assessed as satisfactory, with the last inspection conducted in August 2018. The primary purpose of North Ottawa is flood risk reduction, reflecting its essential role in safeguarding the community and infrastructure against potential water-related disasters.

With a notable capacity for water storage and a strategic location within the Omaha District, North Ottawa stands as a testament to effective water resource management and climate resilience efforts. As climate change continues to impact weather patterns and increase the frequency of extreme weather events, structures like North Ottawa play a critical role in protecting communities and promoting sustainable development practices in the face of environmental challenges.

StateNone
River / streamJudicial Ditch 2
NID IDMN01453
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built2008
Dam height12 ft
Max storage23,800 AF
Normal storage4,000 AF
Drainage area37.0 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionThu, 30 Aug 2018 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 North Ottawa -- inflows here typically show up in storage 24-72 hours later.

Track North Ottawa 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 North Ottawa

Where does the data for North Ottawa 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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