Johnson Swine Waste Lagoon dam
Johnson Swine Waste Lagoon
Johnson Swine Waste Lagoon, located in Siloam, North Carolina, is a privately owned earth dam structure that serves as a waste storage facility for swine operations. The lagoon, completed in 1996, has a hydraulic height of 38 feet and a structural height of 41.1 feet, with a storage capacity of 66.2 acre-feet. Situated along Candiff Creek, the dam is regulated by the North Carolina Department of Environmental Quality and is subject to regular inspections and enforcement measures to ensure its safety and compliance with state regulations.
Despite its fair condition assessment and significant hazard potential, Johnson Swine Waste Lagoon has not undergone any major modifications since its completion. The dam has a surface area of 4 acres and is designed for other purposes beyond flood control. The dam's emergency action plan status and risk management measures are not specified in the available data, highlighting the importance of ongoing monitoring and maintenance to mitigate potential risks associated with the lagoon's operation.
With a history of state permitting, inspection, and enforcement, Johnson Swine Waste Lagoon is a key component of the waste management infrastructure in Surry County. As climate change continues to impact water resources and environmental regulations evolve, the lagoon's role in sustainable waste management practices and water quality protection will be closely monitored. As water resource and climate enthusiasts, staying informed about the condition and management of structures like Johnson Swine Waste Lagoon is crucial for promoting the responsible stewardship of our natural resources.
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 Johnson Swine Waste Lagoon -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Fisher River Near Copeland | 177 cfs | → |
| Ararat River At Ararat | 110 cfs | → |
| Little Yadkin River At Dalton | 7 cfs | → |
| Mitchell River Near State Road | 57 cfs | → |
| Yadkin River At Enon | 670 cfs | → |
| Yadkin River At Elkin | 521 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Johnson Swine Waste Lagoon.
Boat launches
- Campground Trail Yadkin County
- Belews Lake Drive 8191, Belews Creek
- Pine Hall Road 2547-2793, Walnut Cove
Campgrounds
- Pilot Mountain State Park
- Ymca Camp Hanes
- Hanging Rock State Park
- Camp Raven Knob
- Tanglewood Park
- Sunset Park Campground
Fishing spots
Track Johnson Swine Waste Lagoon 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 Johnson Swine Waste Lagoon
Where does the data for Johnson Swine Waste Lagoon 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 Johnson Swine Waste Lagoon.