Pearl River Lock 2 And Bogue Chitto Sill Reservoir Report
Last Updated: January 12, 2026
Pearl River Lock 2 and Bogue Chitto Sill, located in St.
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Summary
Tammany, Louisiana, were constructed in 1950 for navigation and recreation purposes. The structure, owned by the US Army Corps of Engineers, consists of a gravity dam with a height of 21 feet and a spillway width of 250 feet. Despite being deauthorized since 2016, the risks associated with its failure are considered low, with minimal expected impacts such as damage to the lock itself and potential recreational losses.
Due to the lack of funding for maintenance and the structure's deauthorized status, regular inspections and necessary repairs have been limited. However, USACE collaborates closely with various agencies, including the National Weather Service and the Governor's Office of Homeland Security and Emergency Preparedness, to monitor conditions and prepare for emergency response efforts. While the risk assessment indicates minimal threat to life and property, individuals are advised to follow directions from emergency officials in the event of a failure of Pearl River Lock 2 and Bogue Chitto Sill to ensure safety and effective response measures.
In conclusion, despite the deauthorized status and limited maintenance, Pearl River Lock 2 and Bogue Chitto Sill present low risks of failure with minimal anticipated impacts. USACE continues to coordinate with relevant agencies for monitoring and emergency response preparedness, emphasizing the importance of following official instructions in case of an emergency.
Year Completed |
1950 |
Dam Length |
310 |
River Or Stream |
P R CANAL & BOGUE CHITTO CR |
Primary Dam Type |
Gravity |
Surface Area |
30 |
Length Of Locks |
310 |
Hydraulic Height |
6 |
Drainage Area |
7896 |
Nid Storage |
1300 |
Structural Height |
21 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bogue Chitto River Near Bush
|
7520cfs |
West Hobolochitto Creek Nr Mcneill
|
547cfs |
Pearl River Near Bogalusa
|
15500cfs |
East Hobolochitto Creek Nr Caesar
|
117cfs |
Tchefuncta River Near Folsom
|
280cfs |
Tangipahoa River At Robert
|
4840cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Pearl River Lock 2 And Bogue Chitto Sill