W R Mckelvin Jr Lake Dam dam
W R Mckelvin Jr Lake Dam
W R Mckelvin Jr Lake Dam, located in Walthall, Mississippi, is a privately owned dam managed by the Mississippi Department of Environmental Quality. The dam, primarily used for recreation, is classified as an earth dam with a buttress core type, standing at a height of 8 feet and offering a storage capacity of 60 acre-feet. Despite its low hazard potential, the dam is subject to state regulation, inspection, and enforcement to ensure its safety and integrity.
The dam features an uncontrolled spillway type and is not equipped with outlet gates or associated structures. While the dam's condition is currently not rated, its risk assessment is moderate, signaling the need for ongoing risk management measures. The New Orleans District of the US Army Corps of Engineers is not involved in the ownership, funding, design, construction, or regulation of W R Mckelvin Jr Lake Dam, indicating its independent management within the state jurisdiction.
Water resource and climate enthusiasts fascinated by the intricacies of dam infrastructure and management would find W R Mckelvin Jr Lake Dam an interesting case study. Its location in a picturesque setting in Mississippi, coupled with its recreational purpose and state-regulated status, offer a unique perspective on the intersection of water resource management, public safety, and environmental stewardship. The dam's modest height and storage capacity, along with its low hazard potential, present a compelling narrative of how essential infrastructure can coexist harmoniously with natural surroundings in a regulated framework.
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 W R Mckelvin Jr Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bogue Chitto Nr Tylertown | 352 cfs | → |
| Pearl River Nr Columbia | 6,280 cfs | → |
| Tangipahoa River At Osyka | 146 cfs | → |
| Pearl River Near Bogalusa | 24,600 cfs | → |
| Pearl River Nr Monticello | 4,180 cfs | → |
| Tickfaw River At Liverpool | 108 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near W R Mckelvin Jr Lake Dam.
Track W R Mckelvin Jr 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 W R Mckelvin Jr Lake Dam
Where does the data for W R Mckelvin Jr 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 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 W R Mckelvin Jr Lake Dam.