Dam Report

Sandy Run Lake Dam dam

Illinois, USA Trib Bear Creek Hazard Significant
Today high
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Tonight low
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Dam height
29ft
Hazard rating
Significant
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Sandy Run Lake Dam -- None dam
Sandy Run Lake Dam None · Trib Bear Creek
About this dam

Sandy Run Lake Dam

Sandy Run Lake Dam, located in Elba, Illinois, is a privately owned earth dam with a primary purpose of recreation. Built in 1903, this dam stands at a height of 29 feet and has a length of 800 feet, providing a storage capacity of 529 acre-feet. The dam is situated on the tributary of Bear Creek and is under state jurisdiction and regulation by the Illinois Department of Natural Resources.

With a hazard potential rated as significant and a moderate risk assessment, Sandy Run Lake Dam is subject to regular inspections, with the last one conducted in June 2019. Despite the lack of available information on the condition assessment, the dam's emergency action plan status, and risk management measures, it is crucial for water resource and climate enthusiasts to monitor and advocate for the safety and maintenance of this vital infrastructure. As a recreational dam, it plays a key role in providing water storage and outdoor activities for the local community.

As a part of the St. Louis District in Illinois, Sandy Run Lake Dam adds to the beauty and functionality of the region. With its uncontrolled spillway and significant hazard potential, it is essential for stakeholders to prioritize the safety and upkeep of this structure to prevent any potential risks to the surrounding area and ensure continued enjoyment of its recreational benefits.

StateNone
River / streamTrib Bear Creek
NID IDIL00583
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1903
Dam height29 ft
Dam length800 ft
Max storage529 AF
Normal storage230 AF
Hazard potentialSignificant
ConditionNot Available
Last inspectionMon, 03 Jun 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 Sandy Run Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Sandy Run Lake 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 Sandy Run Lake Dam

Where does the data for Sandy Run Lake 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 Significant 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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