Dam Report

John Ragsdale Dam dam

Montana, USA Offstream Hazard Low
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Tonight low
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Dam height
19ft
Hazard rating
Low
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John Ragsdale Dam -- None dam
John Ragsdale Dam None · Offstream
About this dam

John Ragsdale Dam

John Ragsdale Dam, located in Livingston, Montana, is a private dam primarily used for irrigation purposes. Completed in 1980, the earth dam stands at 19 feet high and spans 900 feet in length. With a storage capacity of 100 acre-feet, the dam plays a vital role in managing water resources in the region. While its hazard potential is classified as low, the dam has not been officially rated for its condition.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), John Ragsdale Dam is subject to state regulations, inspections, and enforcement to ensure its safety and efficiency. The dam is situated offstream, contributing to the irrigation needs of the surrounding agricultural lands. Despite being a private structure, the dam serves a public purpose by supporting the local farming community and water supply.

With Congressman Greg Gianforte representing the area, the dam's role in water management and climate resilience is crucial for the sustainable development of Park County, Montana. As water resources become increasingly vital in the face of climate change, the John Ragsdale Dam stands as a testament to the importance of efficient water infrastructure for both agricultural and environmental sustainability in the region.

StateNone
River / streamOffstream
NID IDMT03833
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1980
Dam height19 ft
Dam length900 ft
Max storage100 AF
Normal storage61 AF
Hazard potentialLow
ConditionNot Rated
Last inspectionSun, 01 Nov 1981 12:00:00 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 John Ragsdale Dam -- inflows here typically show up in storage 24-72 hours later.

Track John Ragsdale Dam 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 John Ragsdale Dam

Where does the data for John Ragsdale Dam 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 Low 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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