Dam Report

Alma Mill 2 dam

Wisconsin, USA Tr Mill Creek Hazard Low
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Tonight low
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Dam height
35ft
Hazard rating
Low
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Alma Mill 2 -- None dam
Alma Mill 2 None · Tr Mill Creek
About this dam

Alma Mill 2

Alma Mill 2, also known as Lester Jost, is a locally-owned dam in Buffalo, Wisconsin that was completed in 1963 by the USDA NRCS. The dam serves primarily for debris control and flood risk reduction along TR Mill Creek, with a height of 35 feet and a length of 840 feet. The dam has a low hazard potential and is classified as fair in condition, with a moderate risk assessment rating.

Managed by the WIDNR, Alma Mill 2 is designated for state regulation, permitting, inspection, and enforcement, ensuring its safety and compliance with regulations. While the dam has a maximum storage capacity of 40 acre-feet, its normal storage is reported as zero. The structure also features an uncontrolled spillway type and a maximum discharge capacity of 1759 cubic feet per second, along with a drainage area of 1.3 square miles.

Despite its fair condition and moderate risk assessment, Alma Mill 2 remains a vital asset for debris control and flood risk reduction in the area. With its strategic location and design, the dam plays a crucial role in managing water resources and mitigating potential hazards along TR Mill Creek, benefiting both the environment and surrounding communities in Buffalo, Wisconsin.

StateNone
River / streamTr Mill Creek
NID IDWI00348
Owner typeLocal Government
Primary purposeDebris Control
Dam typeEarth
Year built1963
Dam height35 ft
Dam length840 ft
Max storage40 AF
Surface area2.0 ac
Drainage area1.3 sq mi
Hazard potentialLow
ConditionFair
Last inspectionTue, 14 May 2013 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 Alma Mill 2 -- inflows here typically show up in storage 24-72 hours later.

Track Alma Mill 2 in the Snoflo app

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FAQ

About Alma Mill 2

Where does the data for Alma Mill 2 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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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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