Philadelphia Sewage Lagoon Dam dam
Philadelphia Sewage Lagoon Dam
The Philadelphia Sewage Lagoon Dam in Neshoba, Mississippi is a vital structure owned by the local government and regulated by the Mississippi Department of Environmental Quality. This earth dam, with a height of 12 feet, serves a primary purpose of managing wastewater and has a storage capacity of 285 acre-feet. Despite being classified as having an undetermined hazard potential and not rated in terms of condition assessment, the dam meets state permitting and inspection requirements.
Located within the Mobile District, the Philadelphia Sewage Lagoon Dam is designed with a buttress core type and an uncontrolled spillway. While the dam's risk assessment is considered moderate, with a risk ranking of 3, there are no specific risk management measures identified. The dam has not been modified in recent years and lacks certain emergency preparedness features such as an emergency action plan and updated contact information.
For water resource and climate enthusiasts, the Philadelphia Sewage Lagoon Dam presents an interesting case of a critical infrastructure serving a unique purpose in managing wastewater while also posing moderate risk potential. With its state-regulated status and the need for enhanced emergency preparedness measures, this dam underscores the importance of maintaining and monitoring vital water resources to ensure the safety and well-being of communities in the face of potential hazards.
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 Philadelphia Sewage Lagoon Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pearl River At Burnside | 1,000 cfs | → |
| Pearl River At Edinburg | 380 cfs | → |
| Tuscolameta Creek At Walnut Grove | 60 cfs | → |
| Pearl River Nr Carthage | 680 cfs | → |
| South Canal Tuscolameta Creek Nr Walnut Grove | 8 cfs | → |
| Pearl River Nr Lena | 1,000 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Philadelphia Sewage Lagoon Dam.
Track Philadelphia Sewage Lagoon 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 Philadelphia Sewage Lagoon Dam
Where does the data for Philadelphia Sewage Lagoon 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 Philadelphia Sewage Lagoon Dam.