Dam Report

Oknoname 135004 dam

Oklahoma, USA Tr-Little Vian Cr Hazard Low
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Dam height
22ft
Hazard rating
Low
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Oknoname 135004 -- None dam
Oknoname 135004 None · Tr-Little Vian Cr
About this dam

Oknoname 135004

Oknoname 135004, located in Vian, Oklahoma, is a privately owned dam with a low hazard potential and a very high risk rating. Built in 1965, this earth dam stands at a height of 22 feet and has a hydraulic height of 17 feet, serving primarily for purposes other than flood control or water storage. With a storage capacity of 58 acre-feet, this dam on the TR-Little Vian Creek has a controlled spillway and is inspected every five years to ensure its structural integrity.

Owned and regulated by the Oklahoma Water Resources Board (OWRB), Oknoname 135004 has one valve outlet gate and a maximum discharge capacity of 1,736 cubic feet per second. Despite its low hazard potential, this dam poses a very high risk due to its location and potential impact in case of failure. While the condition of the dam is currently not rated, its risk management measures and emergency action plan status remain unclear, raising concerns about the overall safety and preparedness of this structure.

As a significant feature in the Sequoyah County landscape, Oknoname 135004 plays a crucial role in water resource management and climate resilience efforts in the region. With its unique design and historical significance, this dam serves as a reminder of the importance of proper maintenance and monitoring to ensure the safety and sustainability of our water infrastructure in the face of changing climate patterns and increasing water demands.

StateNone
River / streamTr-Little Vian Cr
NID IDOK21206
Owner typePrivate
Primary purposeOther
Dam typeEarth
Year built1965
Dam height22 ft
Dam length450 ft
Max storage58 AF
Normal storage45 AF
Surface area6.0 ac
Hazard potentialLow
ConditionNot Rated
Last inspectionFri, 03 Dec 2010 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 Oknoname 135004 -- inflows here typically show up in storage 24-72 hours later.

Track Oknoname 135004 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 Oknoname 135004

Where does the data for Oknoname 135004 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.