Dam Report

Hayton dam

Wisconsin, USA South Branch Manitowoc Hazard Low
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Tonight low
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Dam height
14ft
Hazard rating
Low
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Hayton -- None dam
Hayton None · South Branch Manitowoc
About this dam

Hayton

Hayton, also known as Old Mill, is a private dam located in Calumet, Wisconsin, along the South Branch Manitowoc River. Completed in 1908, this Earth-type dam stands at a height of 14 feet and has a maximum storage capacity of 200 acre-feet. The dam primarily serves a recreational purpose and is regulated by the Wisconsin Department of Natural Resources (WIDNR), with regular inspections conducted to ensure its structural integrity.

Despite its low hazard potential and fair condition assessment, Hayton poses a moderate risk, with a moderate risk assessment score of 3. The dam's spillway type is uncontrolled, and it has a maximum discharge capacity of 2410 cubic feet per second. The last inspection was conducted in January 2018, with a scheduled inspection frequency of 10 years. The dam's emergency action plan status and risk management measures are currently unknown, highlighting the importance of ongoing monitoring and assessment to mitigate potential risks associated with this critical infrastructure.

Overall, Hayton serves as a historic landmark and recreational site in the region, offering both leisure opportunities and potential risks that require careful management and oversight. With its picturesque location and vital role in water resource management, Hayton remains a significant asset to the community and a focal point for water resource and climate enthusiasts alike.

StateNone
River / streamSouth Branch Manitowoc
NID IDWI00244
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1908
Dam height14 ft
Dam length130 ft
Max storage200 AF
Normal storage78 AF
Surface area36.0 ac
Drainage area104.0 sq mi
Hazard potentialLow
ConditionFair
Last inspectionWed, 10 Jan 2018 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 Hayton -- inflows here typically show up in storage 24-72 hours later.

Track Hayton 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 Hayton

Where does the data for Hayton 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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Other water bodies near here

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Premium feature

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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