Flag Lake Dam, located in Bossier, Louisiana, is a vital structure managed by the US Air Force primarily for flood risk reduction along the Fifi Bayou.
Wind
Humidity
Completed in 1940, this earth dam stands at a height of 11 feet with a hydraulic height of 5 feet and a structural height of 8 feet. With a normal storage capacity of 3000 acre-feet and a maximum discharge of 3060 cubic feet per second, the dam plays a crucial role in managing water flow in the area.
The dam also serves other purposes such as providing a habitat for fish and wildlife, as well as offering recreational opportunities to the community. With a surface area of 660 acres and a drainage area of 33.5 square miles, Flag Lake Dam is an essential part of the local ecosystem. Although categorized as having a low hazard potential, the dam is regularly inspected by the US Air Force to ensure its structural integrity and safety. Despite its age, Flag Lake Dam continues to fulfill its important role in water resource management and environmental conservation in the region.
In the event of emergencies, the dam operators have designated emergency contacts and protocols in place, although specific details on emergency action plans and risk management measures are not readily available. The risk assessment for Flag Lake Dam indicates a very high risk level, emphasizing the importance of ongoing monitoring and maintenance to prevent any potential hazards. As a key infrastructure for flood control and water resource management, Flag Lake Dam remains a critical asset for the community and a focal point for water resource and climate enthusiasts.
Year Completed |
1940 |
Dam Length |
2720 |
Dam Height |
11 |
River Or Stream |
FIFI BAYOU |
Primary Dam Type |
Earth |
Surface Area |
660 |
Hydraulic Height |
5 |
Drainage Area |
33.5 |
Nid Storage |
4200 |
Structural Height |
8 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
11 |
Red Chute Bayou At Sligo
|
55cfs |
Cypress Bayou Near Keithville
|
11cfs |
Bayou Dorcheat Near Springhill
|
205cfs |
Saline Bayou Near Lucky
|
81cfs |
Big Cypress Ck Abv Sh 43 Nr Karnack
|
538cfs |
Sabine Rv Nr Carthage
|
9200cfs |