Long Creek Dam No 20 dam
Long Creek Dam No 20
Long Creek Dam No 20, located in Panola, Mississippi, was completed in 1998 and serves as a crucial structure for flood risk reduction in the area. This private dam has a height of 20.6 feet and a storage capacity of 153.28 acre-feet, with a primary purpose of flood risk reduction. The dam is classified as an Earth dam with a Buttress core type, and is regulated by the Mississippi Department of Environmental Quality.
Despite being categorized with a low hazard potential, Long Creek Dam No 20 is considered to have a moderate risk level. The dam features an uncontrolled spillway type with a maximum discharge of 240 cubic feet per second. While the condition assessment is currently not rated, the dam is inspected, permitted, and regulated by the state, ensuring its safety and functionality. With a risk management plan in place, the dam's operational and emergency response measures are continuously monitored to mitigate potential risks.
For water resource and climate enthusiasts, Long Creek Dam No 20 offers a valuable case study in dam infrastructure and management. As a key component in the flood risk reduction strategy for the region, this dam showcases the importance of proper regulation, maintenance, and risk assessment in safeguarding communities and ecosystems. With its location along the Long Creek tributary and its vital role in water storage and discharge, Long Creek Dam No 20 exemplifies the intersection of human intervention and natural resource management in the face of changing climate patterns.
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 Long Creek Dam No 20 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hotopha Creek Nr Batesville | 13 cfs | → |
| Otoucalofa Creek Canal Nr Water Valley | 25 cfs | → |
| Yocona River Nr Oxford | 115 cfs | → |
| Yalobusha River At Grenada | 121 cfs | → |
| Batupan Bogue At Grenada | 88 cfs | → |
| Skuna River At Bruce | 71 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Creek Dam No 20.
Boat launches
- County Road 189 Yalobusha County
- County Road 170 Yalobusha County
- Persimmon Hill Multi-Purpose Trail Yalobusha County
- Quail Run Trail Yalobusha County
- County Road 553 Yalobusha County
- Engineers Point Boat Ramp
Track Long Creek Dam No 20 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 Long Creek Dam No 20
Where does the data for Long Creek Dam No 20 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 Long Creek Dam No 20.