South Vienna Wwt Lagoons dam
South Vienna Wwt Lagoons
South Vienna Wwt Lagoons, located in Harmony, Ohio, is a water resource facility designed by URS Consultants and regulated by the Department of Natural Resources. Completed in 1992, this earth dam structure serves primarily for tailings purposes, with a dam height of 26 feet and a storage capacity of 29.88 acre-feet. The lagoons cover a surface area of 2.86 acres and have a drainage area of 0.01 square miles, providing vital water management in the region.
With a significant hazard potential and fair condition assessment, South Vienna Wwt Lagoons are inspected every five years to ensure their safety and functionality. The dam's last inspection was conducted in November 2019, highlighting the importance of regular monitoring and maintenance to prevent potential risks. Despite its isolated location offstream from Beaver Creek, the lagoons play a crucial role in flood control and water storage, contributing to the overall water resource infrastructure in Clark County, Ohio.
Managed by the local government, South Vienna Wwt Lagoons stand as a testament to sustainable water management practices in the region. With its strategic design and regulatory oversight, this water facility exemplifies the importance of balancing environmental conservation with human development needs. As climate change continues to impact water resources, facilities like the South Vienna Wwt Lagoons serve as essential components in adapting to and mitigating the effects of a changing climate on water availability and quality.
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 South Vienna Wwt Lagoons -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mad River At St Paris Pike At Eagle City Oh | 203 cfs | → |
| Mad River Near Springfield Oh | 329 cfs | → |
| Mad River Near Urbana Oh | 117 cfs | → |
| Massies Creek At Wilberforce Oh | 45 cfs | → |
| Little Darby Creek At West Jefferson Oh | 76 cfs | → |
| Little Miami River Near Oldtown Oh | 102 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near South Vienna Wwt Lagoons.
Track South Vienna Wwt Lagoons 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 South Vienna Wwt Lagoons
Where does the data for South Vienna Wwt Lagoons 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 Significant 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 South Vienna Wwt Lagoons.