James Flanigan Lake Dam dam
James Flanigan Lake Dam
James Flanigan Lake Dam, located in Rankin, Mississippi, is a private earth dam designed by the USDA NRCS in 1976 for recreational purposes. Standing at a height of 24.8 feet and with a storage capacity of 550 acre-feet, this dam spans over Pierce Creek and serves as a popular spot for water resource and climate enthusiasts in the area. While the dam is uncontrolled with respect to spillway and outlet gates, it is regulated by the Mississippi Department of Environmental Quality, ensuring safety and compliance with state regulations.
Despite being classified as having an undetermined hazard potential and not rated for its condition assessment, James Flanigan Lake Dam presents a moderate risk (3) according to available data. The dam has not been modified in recent years and lacks specific emergency action plans or inundation maps. However, with state inspection, enforcement, and permitting in place, along with the involvement of the Natural Resources Conservation Service in its design, the dam continues to serve its primary purpose of recreation while being under moderate risk management measures. For water resource and climate enthusiasts, this dam offers a unique opportunity to explore the intersection of human-made structures and natural waterways in a picturesque setting.
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 James Flanigan Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hanging Moss Creek Nr Jackson | 211 cfs | → |
| Pearl River At Jackson | 1,940 cfs | → |
| Pearl River Nr Lena | 972 cfs | → |
| South Canal Tuscolameta Creek Nr Walnut Grove | 8 cfs | → |
| Tuscolameta Creek At Walnut Grove | 62 cfs | → |
| Lynch Creek At Jackson | 213 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near James Flanigan Lake Dam.
Boat launches
- Fannin Landing Circle Rankin County
- Spillway Road Rankin County
- Browns Landing Road Madison County
- East River Road Rankin County
- West River Road Jackson
- Madison Landing Circle 101, Ridgeland
Track James Flanigan Lake 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 James Flanigan Lake Dam
Where does the data for James Flanigan Lake 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 Undetermined 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 James Flanigan Lake Dam.