Dam Report

Laprele dam

Wyoming, USA La Prele Cr, Tr N Platte River Hazard High
Today high
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Tonight low
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Dam height
135ft
Hazard rating
High
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Laprele -- None dam
Laprele None · La Prele Cr, Tr N Platte River
About this dam

Laprele

Laprele is a private irrigation dam located in Converse, Wyoming, along the La Prele Creek and North Platte River. Constructed in 1909, this concrete dam stands at a height of 135 feet and has a storage capacity of 26,850 acre-feet, with a normal storage level of 20,000 acre-feet. The dam's purpose is primarily for irrigation, serving the surrounding agricultural areas.

Despite its age, Laprele Dam has faced issues with its condition assessment, being rated as unsatisfactory during its last inspection in 2017. With a high hazard potential, the dam's spillway is uncontrolled and measures 85 feet in width. It is important for stakeholders and regulators to address these concerns and ensure the safety and integrity of Laprele Dam to mitigate potential risks to downstream communities and the environment.

Laprele Dam's location in the Omaha District and its association with the Federal agencies have implications for its management and oversight. With Liz Cheney as the Congressional representative, there is a need for collaboration between various agencies and stakeholders to implement risk management measures and ensure that the dam meets safety guidelines. As water resource and climate enthusiasts, monitoring and maintaining Laprele Dam is crucial for sustainable water management in the region.

StateNone
River / streamLa Prele Cr, Tr N Platte River
NID IDWY00204
Owner typePrivate
Primary purposeIrrigation
Dam typeConcrete
Year built1909
Dam height135 ft
Dam length320 ft
Max storage26,850 AF
Normal storage20,000 AF
Surface area728.0 ac
Drainage area188.0 sq mi
Hazard potentialHigh
ConditionUnsatisfactory
Last inspectionWed, 18 Jan 2017 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 Laprele -- inflows here typically show up in storage 24-72 hours later.

Track Laprele 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 Laprele

Where does the data for Laprele 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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