Dam Report

Lake Viva Naughton dam

Wyoming, USA Ham's Fork River Hazard High
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Dam height
83ft
Hazard rating
High
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Lake Viva Naughton -- None dam
Lake Viva Naughton None · Ham's Fork River
About this dam

Lake Viva Naughton

Lake Viva Naughton, located in Lincoln County, Wyoming, is a captivating reservoir with a primary purpose of irrigation. Constructed in 1967, this earth dam stands at a height of 83 feet, with a hydraulic height of 77 feet, and a structural height of 83 feet. The reservoir has a storage capacity of 77,635 acre-feet and covers a surface area of 1,936 acres, drawing water from the Ham's Fork River for irrigation purposes.

The dam's spillway, at a width of 50 feet, is uncontrolled, and the reservoir has a maximum discharge capacity of 14,800 cubic feet per second. Despite being classified with a high hazard potential, the dam's condition assessment is rated as fair. The last inspection in September 2020 revealed that the reservoir is in moderate risk with a DSAC-assigned risk rating of 3. With its picturesque location and vital role in irrigation, Lake Viva Naughton serves as a crucial water resource in the region, regulated and inspected by the Wyoming State Engineer's Office.

Enthusiasts of water resources and climate will be intrigued by Lake Viva Naughton's significance in water management and its impact on the surrounding environment. With its historical construction by designer Harold Boehner and ownership by a public utility, this reservoir plays a crucial role in sustaining agricultural activities in the area. The dam's presence on the Ham's Fork River, along with its storage capacity, surface area, and maximum discharge, demonstrates its importance in water supply and management in Wyoming.

StateNone
River / streamHam's Fork River
NID IDWY01281
Owner typePublic Utility
Primary purposeIrrigation
Dam typeEarth
Year built1967
Dam height83 ft
Dam length3,200 ft
Max storage77,635 AF
Normal storage69,645 AF
Surface area1,936.0 ac
Drainage area233.0 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionThu, 17 Sep 2020 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 Lake Viva Naughton -- inflows here typically show up in storage 24-72 hours later.

Track Lake Viva Naughton 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 Lake Viva Naughton

Where does the data for Lake Viva Naughton 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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