Dam Report

Roberts Lake Dam dam

Illinois, USA Fulfer Creek-Offstream Hazard Low
Today high
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Tonight low
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Dam height
22ft
Hazard rating
Low
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Roberts Lake Dam -- None dam
Roberts Lake Dam None · Fulfer Creek-Offstream
About this dam

Roberts Lake Dam

Roberts Lake Dam, located in Effingham, Illinois, was completed in 1965 and is primarily used for recreation. The dam, with a height of 22 feet and a length of 1010 feet, serves as a key feature on Fulfer Creek-offstream. Designed by the USDA NRCS, the dam is classified as an earth dam with a buttress core type. Its maximum storage capacity is 63 acre-feet, with a normal storage capacity of 48 acre-feet. The spillway type is uncontrolled with a spillway width of 53 feet.

The dam is privately owned and regulated by the Illinois Department of Natural Resources. It is state-jurisdictional and meets state permitting, inspection, and enforcement requirements. The hazard potential of the dam is categorized as low, with a moderate risk assessment rating. The last inspection was conducted in July 2015, 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 remain undisclosed. Overall, Roberts Lake Dam presents a unique opportunity for water resource and climate enthusiasts to explore the intersection of man-made infrastructure and natural ecosystems in the region.

StateNone
River / streamFulfer Creek-Offstream
NID IDIL00609
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1965
Dam height22 ft
Dam length1,010 ft
Max storage63 AF
Normal storage48 AF
Hazard potentialLow
ConditionNot Available
Last inspectionFri, 24 Jul 2015 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 Roberts Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Roberts Lake Dam in the Snoflo app

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FAQ

About Roberts Lake Dam

Where does the data for Roberts 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 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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