Shabbona Lake Dam dam
Shabbona Lake Dam
Shabbona Lake Dam, located in DeKalb, Illinois, is a state-owned structure that was completed in 1974 by Architectural & Engineering Service. The dam, standing at a height of 56 feet and stretching 2570 feet in length, serves a primary purpose of recreation along with other purposes. Situated on Indian Creek, the dam's reservoir has a normal storage capacity of 4275 acre-feet and a maximum storage of 6387 acre-feet, making it a valuable resource for water supply and outdoor activities.
Managed by the Illinois Department of Natural Resources (IDNR), Shabbona Lake Dam is regulated, permitted, inspected, and enforced by the state. The dam's spillway, with a width of 443 feet, is of the uncontrolled type, and it poses a low hazard potential. Despite a moderate risk assessment score of 3, the condition assessment of the dam is not available, and there is no Emergency Action Plan (EAP) in place. With its scenic location at Shabbona Grove and the recreational opportunities it offers, the dam is a popular destination for water resource and climate enthusiasts seeking outdoor adventures and natural beauty in the region.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Shabbona Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| South Branch Kishwaukee River At Dekalb | 35 cfs | → |
| Blackberry Creek Near Yorkville | 36 cfs | → |
| Blackberry Creek Near Montgomery | 30 cfs | → |
| Fox River At Dayton | 1,700 cfs | → |
| South Branch Kishwaukee River Nr Fairdale Il | 163 cfs | → |
| Fox River At Montgomery | 773 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Shabbona Lake Dam.
Boat launches
- Tomahawk Trail Dekalb County
- Valley Drive Kendall County
- Silver Springs Boat Ramp
- Creekside Court Blackberry Township
- Sundown Lane 7277, Kendall County
- Calumet Street Ottawa
Campgrounds
Track Shabbona 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.
About Shabbona Lake Dam
Where does the data for Shabbona 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Shabbona Lake Dam.