Upper Yockanookany Ws Str 4 Dam dam
Upper Yockanookany Ws Str 4 Dam
The Upper Yockanookany WS Str 4 Dam, located in Ackerman, Mississippi, serves as a crucial structure for flood risk reduction along the Unt of Yockanookany River. Built in 1979 by the USDA NRCS, this earth dam stands at a height of 26.5 feet and has a normal storage capacity of 28 acre-feet. Despite its important role in mitigating flood hazards, the dam is classified as having a high hazard potential and a poor condition assessment, indicating the need for ongoing maintenance and potential upgrades to ensure its effectiveness and safety.
This dam, designed with a buttress core type and a soil foundation, spans 800 feet in length and covers a surface area of 7.9 acres. Its uncontrolled spillway type and outlet gates highlight the need for continuous monitoring and inspection to manage potential risks and ensure proper functionality during extreme weather events. The dam's association with the Mississippi Department of Environmental Quality underscores the state's regulatory oversight and commitment to maintaining the dam's integrity and safety standards.
Given its moderate risk assessment rating and the high hazard potential associated with the dam, stakeholders and water resource enthusiasts must stay informed about the ongoing condition assessments, inspection schedules, and any proposed risk management measures for the Upper Yockanookany WS Str 4 Dam. As a critical infrastructure for flood risk reduction in Choctaw, Mississippi, this dam requires careful attention and proactive measures to safeguard both the local community and surrounding ecosystems from potential flooding events.
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 Upper Yockanookany Ws Str 4 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yockanookany River Nr Kosciusko | 81 cfs | → |
| Pearl River At Burnside | 1,000 cfs | → |
| Catalpa Creek At Mayhew | 2,940 cfs | → |
| Big Black River At West | 1,470 cfs | → |
| Pearl River At Edinburg | 380 cfs | → |
| Noxubee River At Macon | 95 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Yockanookany Ws Str 4 Dam.
Track Upper Yockanookany Ws Str 4 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 Upper Yockanookany Ws Str 4 Dam
Where does the data for Upper Yockanookany Ws Str 4 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 Upper Yockanookany Ws Str 4 Dam.