Jack Harris Dam dam
Jack Harris Dam
Jack Harris Dam, located in Wilkinson, Mississippi, is a privately owned structure designed by the USDA NRCS and completed in 1993. This earth dam, with a height of 35 feet and a length of 300 feet, serves primarily for recreation purposes, offering a storage capacity of 93 acre-feet. The dam overlooks the UNT of Pinckneyville Creek and is regulated and inspected by the Mississippi Department of Environmental Quality, ensuring its safety and compliance with state regulations.
With a low hazard potential and a moderate risk assessment rating, Jack Harris Dam provides a safe and enjoyable recreational environment for visitors. The dam features an uncontrolled spillway and outlet gates, maintaining the water levels within the designated storage capacity of 58 acre-feet. While the dam is not currently rated for its condition, regular inspections and enforcement by the state regulatory agency help to ensure its continued functionality and safety for water resource and climate enthusiasts alike.
Overall, Jack Harris Dam offers a picturesque setting for outdoor activities and water recreation in the heart of Mississippi. With its serene location, well-maintained structure, and state oversight, the dam provides a valuable resource for the community while also serving as a reminder of the importance of responsible water management in the face of changing climate conditions.
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 Jack Harris Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Buffalo River Nr Woodville | 355 cfs | → |
| (Coe) Atchafalaya River At Simmesport | 177,000 cfs | → |
| Homochitto River At Rosetta | 6,910 cfs | → |
| Bayou Des Glaises Diversion Ch. At Moreauville | 919 cfs | → |
| Comite River Near Olive Branch | 65 cfs | → |
| Amite River Near Darlington | 1,820 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jack Harris Dam.
Boat launches
Fishing spots
Track Jack Harris 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 Jack Harris Dam
Where does the data for Jack Harris 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 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 Jack Harris Dam.