Pearl River Lock 3 And Pools Bluff Sill dam
Pearl River Lock 3 And Pools Bluff Sill
Pearl River Lock 3 and Pools Bluff Sill, located in St. Tammany, Louisiana, were completed in 1950 for navigation and recreation purposes. The dam spans 430 feet in length and has a gravity design with a hydraulic height of 7 feet. Despite being deauthorized since 2016, the risk of failure is deemed low, with minimal impacts expected in the event of a breach. The US Army Corps of Engineers (USACE) is limited in its ability to address deficiencies due to funding constraints, but closely coordinates with other agencies for emergency response efforts.
USACE conducts minimal maintenance to secure the site from public access and vandalism, given the lack of funding for regular inspections and repairs. In case of a failure, emergency response efforts are coordinated with the National Weather Service, U.S. Geologic Survey, NOAA, and Louisiana's GOHSEP. While the potential for some recreational losses exists if the lock or sill were to fail, the overall risk of significant life or property damage is seen as unlikely. In the event of an emergency, residents are advised to follow directions from local officials, including any evacuation orders issued.
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 Pearl River Lock 3 And Pools Bluff Sill -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bogue Chitto River Near Bush | 9,270 cfs | → |
| West Hobolochitto Creek Nr Mcneill | 983 cfs | → |
| Pearl River Near Bogalusa | 17,400 cfs | → |
| East Hobolochitto Creek Nr Caesar | 1,020 cfs | → |
| Tchefuncta River Near Folsom | 497 cfs | → |
| Tangipahoa River At Robert | 3,750 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pearl River Lock 3 And Pools Bluff Sill.
Boat launches
- Walkiah Bluff Road 521, Pearl River County
- Burnt Bridge Road Pearl River County
- East Independence Street 798, Covington
- Water Street Covington
- Pump Slough Road Pearl River
- Bayou Lacombe Boat Launch
Track Pearl River Lock 3 And Pools Bluff Sill 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 Pearl River Lock 3 And Pools Bluff Sill
Where does the data for Pearl River Lock 3 And Pools Bluff Sill 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 Pearl River Lock 3 And Pools Bluff Sill.