Longville Lake dam
Longville Lake
Longville Lake, located in Beauregard, Louisiana, is a private water resource primarily used for recreation. Constructed in 1950, this earth dam structure stands at a height of 10 feet and has a maximum storage capacity of 600 acre-feet. With a surface area of 100 acres and a drainage area of 2 square miles, Longville Lake offers a tranquil setting for water and climate enthusiasts to enjoy various outdoor activities.
Despite its recreational appeal, Longville Lake poses a high hazard potential with a poor condition assessment, indicating the need for maintenance and potential safety improvements. The dam features an uncontrolled spillway with a width of 100 feet, allowing for a maximum discharge of 1750 cubic feet per second. The structure's risk assessment is categorized as moderate, emphasizing the importance of implementing risk management measures to ensure the safety of the surrounding community and environment.
Overseen by the Louisiana Department of Transportation and Development, Longville Lake is subject to state regulations, inspections, and enforcement. The dam's location on Horse Branch, in close proximity to the city of Longville, makes it a vital water resource for the region. With its historical significance and recreational value, Longville Lake serves as a focal point for water resource and climate enthusiasts seeking to engage with nature 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 Longville Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bundick Ck Nr De Ridder | 321 cfs | → |
| Calcasieu River Near Kinder | 1,180 cfs | → |
| Whiskey Chitto Creek Near Oberlin | 413 cfs | → |
| Sabine Rv Nr Bon Wier | 1,440 cfs | → |
| Bayou Anacoco Near Rosepine | 803 cfs | → |
| Calcasieu River Near Oberlin | 741 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Longville Lake.
Boat launches
- Gahagan Lane Calcasieu Parish
- Calcasieu Parish
- Seal Valley Lane Calcasieu Parish
- Charles Breaux Road Calcasieu Parish
- Miller Avenue 1800, Calcasieu Parish
Track Longville 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 Longville Lake
Where does the data for Longville 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 High 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 Longville Lake.