Carrollton Water Treatment Dam dam
Carrollton Water Treatment Dam
Located in New Orleans, Louisiana, the Carrollton Water Treatment Dam, also known as the New Orleans Dam, stands as a vital piece of infrastructure for the city's water supply. Constructed in 1905, this earth dam sits along the TR-Mississippi River and serves as a crucial source for water storage with a capacity of 99 acre-feet. The dam's primary purpose is water supply, and it plays a significant role in ensuring a steady and reliable water source for the surrounding community.
With a hydraulic height of 9 feet and a length of 5130 feet, the Carrollton Water Treatment Dam boasts a controlled spillway type with a width of 12 feet. The dam's condition is assessed as satisfactory, with a significant hazard potential due to its location and purpose. Regular inspections are conducted to ensure its structural integrity and safety. The dam is under state regulation by the Louisiana Department of Transportation and Development, with state permitting, inspection, and enforcement in place to safeguard its operations and functionality.
For water resource and climate enthusiasts, the Carrollton Water Treatment Dam offers a fascinating glimpse into the intersection of water management, infrastructure, and environmental stewardship. As a crucial component of New Orleans' water supply system, this dam serves as a testament to the importance of sustainable water resource management and highlights the ongoing efforts to ensure the resilience and reliability of vital infrastructure in the face of changing climate patterns and water needs.
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 Carrollton Water Treatment Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Giww West Of Bayou Lafourche At Larose | 117 cfs | → |
| Tangipahoa River At Robert | 957 cfs | → |
| Giww At Houma | 1,940 cfs | → |
| Bayou Lafourche At Thibodaux | 486 cfs | → |
| Natalbany River At Baptist | 96 cfs | → |
| Tchefuncta River Near Folsom | 97 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Carrollton Water Treatment Dam.
Boat launches
- Bonnabel Boat Launch
- Lakeshore Drive New Orleans
- Belle Chasse Launch Ama
- Sharpe Road Jefferson Parish
- Patterson Road 12138, New Orleans
- Jean Lafitte Public Boat Launch
Track Carrollton Water Treatment 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 Carrollton Water Treatment Dam
Where does the data for Carrollton Water Treatment 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 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 Carrollton Water Treatment Dam.