Nashville City Reservoir Dam dam
Nashville City Reservoir Dam
Nashville City Reservoir Dam, located in Pinkneyville, Illinois, is a vital structure providing both recreational opportunities and water supply to the area. Built in 1935 by CALDWELL ENGINEERING CO., this earth dam stands at a height of 26 feet and spans a length of 740 feet, with a storage capacity of 701 acre-feet. The dam's primary purpose is for recreation, but it also serves as a source of water supply for the surrounding community.
Managed by the Illinois Department of Natural Resources, the dam's state-regulated status ensures regular inspections and enforcement of safety measures. Despite its high hazard potential, the risk assessment for Nashville City Reservoir Dam is moderate. The spillway, with a width of 180 feet, is uncontrolled, and the dam's condition assessment is currently unavailable. With a drainage area of 1.4 square miles and a maximum discharge of 9710 cubic feet per second, the dam plays a crucial role in managing water resources in the region.
As a key feature in the St. Louis District, Nashville City Reservoir Dam contributes to the environmental and recreational landscape of Washington County, Illinois. Its historical significance, combined with its important functions in water supply and recreation, make it a valuable asset for both residents and visitors to enjoy and appreciate.
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 Nashville City Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Little Crooked Creek Near New Minden | 8 cfs | → |
| Kaskaskia River Near Venedy Station | 8,740 cfs | → |
| Kaskaskia River At Carlyle | 6,090 cfs | → |
| Rayse Creek Near Waltonville | 11 cfs | → |
| Shoal Creek Near Breese | 972 cfs | → |
| Casey Fork At Mount Vernon | 15 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Nashville City Reservoir Dam.
⚓ Boat launches
- Hazlet State Park Boat Ramp
- North 1st Street 2252, Fayetteville
- Jefferson County
- Franklin County
- Il 13 New Athens
⛺ Campgrounds
- Washington County Lake State Conservation Area
- Dam West - Lake Carlyle
- Eldon Hazlet State Park
- Coles Creek - Lake Carlyle
- Pyramid State Park
- Boulder - Lake Carlyle
Track Nashville City 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 Nashville City Reservoir Dam
Where does the data for Nashville City 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 High 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 Nashville City Reservoir Dam.