Dam Report

Mill Creek Strcture 2 Dam dam

Illinois, USA Trib Mill Creek Hazard Low
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Tonight low
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Dam height
38ft
Hazard rating
Low
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Mill Creek Strcture 2 Dam -- None dam
Mill Creek Strcture 2 Dam None · Trib Mill Creek
About this dam

Mill Creek Strcture 2 Dam

Mill Creek Structure 2 Dam, also known as Mill Creek Impoundment 2, is a private dam located in Hutsonville, Illinois. Built in 1973 by the USDA NRCS, this earth dam stands at a height of 38 feet and spans 645 feet in length. Its primary purpose is flood risk reduction, with a storage capacity of 945 acre-feet and a normal storage level of 355 acre-feet.

Managed by the Illinois Department of Natural Resources, the dam features an uncontrolled spillway with a width of 154 feet. Despite its low hazard potential, the dam is considered to have moderate risk, with an inspection frequency of 5 years. While the condition assessment is not available, the dam's emergency action plan status and risk management measures are also unspecified. Although the dam has not undergone modifications in recent years, its overall risk level is rated at moderate.

Located on the tributary of Mill Creek and under the jurisdiction of the Louisville District of the US Army Corps of Engineers, Mill Creek Structure 2 Dam plays a crucial role in mitigating flood risks in the area. With its sturdy construction and efficient flood control mechanisms, the dam stands as a vital resource for water management and climate resilience in Clark County, Illinois.

StateNone
River / streamTrib Mill Creek
NID IDIL00851
Owner typePrivate
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1973
Dam height38 ft
Dam length645 ft
Max storage945 AF
Normal storage355 AF
Hazard potentialLow
ConditionNot Available
Last inspectionFri, 23 Aug 2019 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 Mill Creek Strcture 2 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Mill Creek Strcture 2 Dam 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 Mill Creek Strcture 2 Dam

Where does the data for Mill Creek Strcture 2 Dam 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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