Dam Report

Greyhound dam

Wyoming, USA Rattlesnake Cr Offstream Hazard Low
Today high
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Tonight low
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Dam height
11ft
Hazard rating
Low
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Greyhound -- None dam
Greyhound None · Rattlesnake Cr Offstream
About this dam

Greyhound

Greyhound is a privately owned Earth dam located in Carbon County, Wyoming, specifically in the city of Ft Fred Steele. Completed in 1910, this irrigation dam stands at a height of 11 feet and has a hydraulic height of 8 feet, with a length of 877 feet. The dam has a storage capacity of 204 acre-feet, with a normal storage level of 142 acre-feet and a surface area of 30 acres.

Despite being classified as having a low hazard potential, Greyhound is considered to be in fair condition as of its last inspection in September 2020. The dam is equipped with an uncontrolled spillway and one other controlled outlet gate. The risk assessment for this dam is moderate, with a risk level of 3 out of 5. Although no emergency action plan is currently in place, the dam is regularly inspected by state authorities, with enforcement and permitting also being handled at the state level.

Overall, Greyhound serves as a vital irrigation structure in the region, providing water resources for agricultural purposes. With its historic significance and continued functionality, this dam stands as a testament to the importance of water management in sustaining the local ecosystem and supporting the agricultural community in Carbon County, Wyoming.

StateNone
River / streamRattlesnake Cr Offstream
NID IDWY00187
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1910
Dam height11 ft
Dam length877 ft
Max storage204 AF
Normal storage142 AF
Surface area30.0 ac
Hazard potentialLow
ConditionFair
Last inspectionWed, 30 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 Greyhound -- inflows here typically show up in storage 24-72 hours later.

Track Greyhound 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 Greyhound

Where does the data for Greyhound 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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