Waverly City Lake Dam dam
Waverly City Lake Dam
Waverly City Lake Dam is a vital water resource infrastructure located in Morgan County, Illinois, along Woods Creek. This earth dam, completed in 1939, serves primarily for water supply purposes with a maximum storage capacity of 2536 acre-feet and a normal storage of 809 acre-feet. The dam stands at a height of 35 feet and spans 496 feet in length, covering a surface area of 64 acres.
Managed by the local government, the dam is regulated by the Illinois Department of Natural Resources (IDNR) and undergoes regular inspections, with the last one conducted in June 2020. Classified with a low hazard potential, the dam poses a moderate risk level, indicating a need for ongoing risk management measures. With an uncontrolled spillway and outlet gates, the dam has a maximum discharge capacity of 14520 cubic feet per second, ensuring effective water flow management during periods of high water levels.
Waverly City Lake Dam serves as a critical infrastructure for water supply in the region, highlighting the importance of its maintenance and management to ensure the safety and sustainability of water resources in Morgan County, Illinois. Enthusiasts of water resources and climate will find interest in the dam's design features, regulatory oversight, and risk assessment, emphasizing the intersection of water management and environmental conservation in the local community.
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 Waverly City Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Spring Creek At Springfield | 201 cfs | → |
| South Fork Sangamon River Nr Rochester | 1,560 cfs | → |
| Sangamon River At Petersburg | 3,340 cfs | → |
| Sangamon River At Riverton | 3,370 cfs | → |
| Macoupin Creek Near Kane | 2,990 cfs | → |
| Illinois River At Valley City | 25,300 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Waverly City Lake Dam.
Boat launches
- Waverly Lake Road Morgan County
- Island Bay Lane Springfield
- Gridley Road Cass County
- East Lake Shore Drive 182, Springfield
- County Highway 11 Cass County
- Gurney Road Cass County
Track Waverly City 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 Waverly City Lake Dam
Where does the data for Waverly City 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 Waverly City Lake Dam.