Hermon Jackson Lake dam
Hermon Jackson Lake
Hermon Jackson Lake in Olio, Mississippi, is a privately owned reservoir built in 1950 for recreational purposes. Managed by the USDA NRCS, the earth dam stands at 15 feet high and spans 450 feet in length, holding a maximum storage capacity of 50 acre-feet. Situated on Ellis Creek in Amite County, Mississippi, the lake offers a serene setting for outdoor enthusiasts to enjoy activities such as fishing, boating, and picnicking.
With a low hazard potential and a moderate risk assessment rating, Hermon Jackson Lake is deemed safe and well-maintained, although its condition assessment is currently not rated. The uncontrolled spillway is 70 feet wide, allowing for a maximum discharge of 965 cubic feet per second. While there are no associated structures or locks on the lake, it remains a popular destination for locals and visitors alike seeking to escape into nature and enjoy the peaceful surroundings.
Located within the jurisdiction of the state of Mississippi and the New Orleans District of the USACE, Hermon Jackson Lake offers a tranquil retreat for water resource and climate enthusiasts. Despite lacking certain regulatory oversight and inspections, the lake stands as a testament to thoughtful design and construction by the Natural Resources Conservation Service. Whether for a leisurely day of recreation or a moment of reflection in the great outdoors, Hermon Jackson Lake invites all to appreciate the beauty of its surroundings and the importance of sustainable water resource management.
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 Hermon Jackson Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Homochitto River At Rosetta | 1,630 cfs | → |
| Amite River Near Darlington | 537 cfs | → |
| Buffalo River Nr Woodville | 128 cfs | → |
| Tickfaw River At Liverpool | 108 cfs | → |
| Comite River Near Olive Branch | 65 cfs | → |
| Homochitto River At Eddiceton | 197 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hermon Jackson Lake.
Track Hermon Jackson Lake 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 Hermon Jackson Lake
Where does the data for Hermon Jackson Lake 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 Hermon Jackson Lake.