Dam Report

Havens dam

Wyoming, USA Havens Creek Hazard Low
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Tonight low
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Dam height
16ft
Hazard rating
Low
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Havens -- None dam
Havens None · Havens Creek
About this dam

Havens

Havens is a private irrigation dam located in Crook, Wyoming, on Havens Creek. Built in 1906, this Earth dam stands at 16 feet high and has a storage capacity of 260 acre-feet. With a spillway width of 32 feet and a valve outlet gate, the dam serves its primary purpose of irrigation for the surrounding area.

Despite its historical significance, Havens dam is currently assessed as being in poor condition with a low hazard potential. The last inspection in 2017 revealed the need for maintenance and improvements. While the risk assessment is moderate, with a DSAC risk rating of 3, there is no emergency action plan in place, and the dam does not meet current safety guidelines.

For water resource and climate enthusiasts, the case of Havens dam serves as a reminder of the importance of ongoing maintenance and monitoring of critical infrastructure. As climate change increases the frequency and intensity of extreme weather events, ensuring the safety and stability of dams like Havens is essential for protecting communities and ecosystems downstream. Collaborative efforts between state and federal agencies are needed to address the challenges of aging infrastructure and mitigate potential risks associated with deteriorating dams.

StateNone
River / streamHavens Creek
NID IDWY00877
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1906
Dam height16 ft
Dam length350 ft
Max storage260 AF
Normal storage212 AF
Surface area20.0 ac
Hazard potentialLow
ConditionPoor
Last inspectionThu, 28 Sep 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 Havens -- inflows here typically show up in storage 24-72 hours later.

Track Havens 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 Havens

Where does the data for Havens 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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Snoflo-tracked reservoirs and dams within driving distance of Havens.