Temporary Sangamon River Dam dam
Temporary Sangamon River Dam
Located in Sangamon, Illinois, the Temporary Sangamon River Dam serves as a critical water supply structure designed by Crawford, Murphy & Tilly. Owned by a public utility, this dam stands at a height of 20 feet with a length of 341 feet, providing a storage capacity of 2000 acre-feet. The dam, located on the Sangamon River, plays a crucial role in water resource management in the region, regulated by the Illinois Department of Natural Resources.
The dam features an uncontrolled spillway with a width of 275 feet and is classified as a low-hazard structure with a moderate risk assessment. While the condition assessment is currently unavailable, the dam undergoes inspections every five years to ensure its safety and functionality. With a primary purpose of water supply, the Temporary Sangamon River Dam contributes to the overall water management efforts in Springfield, Illinois, and is a key asset in the region's infrastructure.
Overall, the Temporary Sangamon River Dam stands as a vital water resource structure in Sangamon County, Illinois, providing essential water supply services to the local community. With its unique buttress core type and uncontrolled spillway design, the dam plays a crucial role in managing water flow and storage along the Sangamon River. As a publicly owned utility structure, the dam is subject to state jurisdiction and regulatory oversight, ensuring its continued operation and contribution to the region's water supply needs.
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 Temporary Sangamon River Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sangamon River At Riverton | 1,610 cfs | → |
| South Fork Sangamon River Nr Rochester | 673 cfs | → |
| Spring Creek At Springfield | 117 cfs | → |
| Lake Fork Near Cornland | 182 cfs | → |
| Sangamon River At Petersburg | 1,960 cfs | → |
| Salt Creek Near Greenview | 1,020 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Temporary Sangamon River Dam.
Boat launches
- East Lake Shore Drive 182, Springfield
- Island Bay Lane Springfield
- Christian County
- South Wyckles Road Macon County
- West Sunset Avenue Decatur
- Waverly Lake Road Morgan County
Track Temporary Sangamon River 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 Temporary Sangamon River Dam
Where does the data for Temporary Sangamon River 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 Temporary Sangamon River Dam.