Lake Ramsey Reservoir Report

Last Updated: December 19, 2025

Lake Ramsey, located in St.


°F

°F

mph

Wind

%

Humidity

Summary

Tammany, Louisiana, is a private reservoir that serves primarily for recreational purposes. Constructed in 1966 by WR CORE, this earth dam stands at a height of 10 feet and stretches over 19,000 feet in length. With a storage capacity of 1,510 acre-feet, Lake Ramsey covers a surface area of 355 acres and has a drainage area of 0.55 square miles, fed by the Horse Branch Offstream.

Managed by the Louisiana Department of Transportation and Development, Lake Ramsey has a low hazard potential and is currently in fair condition as of the last inspection in July 2018. The spillway, of uncontrolled type, has a width of 8 feet, and the dam's hydraulic height reaches 6 feet. Despite its moderate risk assessment of 3, the reservoir remains a popular spot for water resource and climate enthusiasts, attracting visitors with its scenic surroundings and recreational opportunities.

As an integral part of the local landscape, Lake Ramsey not only provides a source of leisure for the community but also serves as a vital water resource in the region. With its serene waters and picturesque setting, this reservoir continues to be a valuable asset for both residents and visitors, offering a place to unwind and appreciate the natural beauty of Louisiana's outdoors while also contributing to the overall sustainability of the area's water supply and ecosystem.

Year Completed

1966

Dam Length

19000

Dam Height

8

River Or Stream

HORSE BRANCH OFFSTREAM

Primary Dam Type

Earth

Surface Area

355

Hydraulic Height

6

Drainage Area

0.55

Nid Storage

1510

Structural Height

10

Hazard Potential

Low

Foundations

Soil

Nid Height

10
       
Seasonal Comparison

Weather Forecast

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. 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

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, 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.