Concord Reservoir Dam dam
Concord Reservoir Dam
Concord Reservoir Dam, located in Morgan County, Illinois, was completed in 1910 and serves as a recreational water source for the community. This private-owned Earth dam stands at 26 feet tall and stretches 514 feet in length, with a storage capacity of 203 acre-feet. The dam is situated along the tributary Lick Branch, with a spillway width of 59 feet and uncontrolled outlets.
Managed by the Illinois Department of Natural Resources, Concord Reservoir Dam has a low hazard potential and a moderate risk assessment rating. Despite its age, the dam remains in good condition and is inspected regularly to ensure public safety. The surrounding area offers opportunities for outdoor recreation, making it a popular destination for water and climate enthusiasts looking to enjoy the natural beauty of the region.
With its rich history and vital role in providing recreational opportunities, Concord Reservoir Dam stands as a testament to the importance of water resource management in Illinois. As climate change continues to impact water sources worldwide, it is crucial to maintain and monitor infrastructure like Concord Reservoir Dam to ensure its continued functionality and safety for future generations of visitors and residents alike.
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 Concord Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Illinois River At Valley City | 33,100 cfs | → |
| La Moine River At Ripley | 416 cfs | → |
| Bay Creek At Pittsfield | 43 cfs | → |
| Sangamon River Near Oakford | 3,110 cfs | → |
| Sangamon River At Petersburg | 1,960 cfs | → |
| Spring Creek At Springfield | 117 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Concord Reservoir Dam.
Boat launches
- Gridley Road Cass County
- Florance Boat Ramp
- Gurney Road Cass County
- County Highway 11 Cass County
- Waverly Lake Road Morgan County
Track Concord Reservoir 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 Concord Reservoir Dam
Where does the data for Concord Reservoir 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 Concord Reservoir Dam.