Bayou Dupont No 9 dam
Bayou Dupont No 9
Located in the picturesque city of Shamrock, Louisiana, Bayou Dupont No 9 is a privately-owned earth dam designed by the USDA NRCS for flood risk reduction along the TR-Bayou Dupont. Completed in 1959, this dam stands at a height of 22 feet and spans a length of 1440 feet, with a maximum storage capacity of 658 acre-feet and a normal storage capacity of 215 acre-feet. With a surface area of 36 acres and a drainage area of 0.94 square miles, Bayou Dupont No 9 plays a crucial role in managing water resources in the region.
Beyond flood risk reduction, Bayou Dupont No 9 also serves multiple purposes including fish and wildlife pond creation, recreation, and enhancing the overall ecological landscape. The dam's spillway type is uncontrolled, with a width of 12 feet, allowing excess water to safely discharge when needed. Despite its fair condition assessment as of July 2020, the dam poses a significant hazard potential, prompting regular inspections every three years to ensure its structural integrity and safety. With the dam's associated risk assessed as moderate, it underscores the importance of ongoing risk management measures to safeguard the surrounding communities and environment.
As part of the Fort Worth District in Louisiana, Bayou Dupont No 9 is a vital infrastructure maintained by the LA DOTD, with state-regulated permitting, inspection, and enforcement in place to uphold its operational standards. The dam's strategic location at S6,T8N,R9WANDS31,T9N,R9W not only mitigates flood risks but also supports the region's water conservation efforts. For water resource and climate enthusiasts, Bayou Dupont No 9 stands as a testament to collaborative efforts between private owners, government agencies, and environmental stewards in safeguarding water resources and enhancing ecological sustainability in Natchitoches County.
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 Bayou Dupont No 9 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bayou Pierre Near Lake End | 46 cfs | → |
| Bayou San Patricio Near Benson | 3 cfs | → |
| Bayou Toro Near Toro | 85 cfs | → |
| Bayou Grand Cane Near Stanley | · | → |
| Sabine Rv At Toledo Bd Res Nr Burkeville | 336 cfs | → |
| Saline Bayou Near Lucky | 266 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Bayou Dupont No 9.
Campgrounds
Track Bayou Dupont No 9 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 Bayou Dupont No 9
Where does the data for Bayou Dupont No 9 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 Significant 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 Bayou Dupont No 9.