Black Bayou Dam, also known as Black Lake Dam, is a state-owned structure located in Hosston, Louisiana.
Wind
Humidity
Completed in 1955 by the Louisiana Department of Public Works, this Earth-type dam serves primarily for recreation and water supply purposes along the Black Bayou river. With a height of 20 feet and a length of 1400 feet, the dam provides a storage capacity of 46,500 acre-feet and covers a surface area of 3860 acres.
Despite its significant hazard potential and poor condition assessment, Black Bayou Dam is regulated, permitted, inspected, and enforced by the Louisiana Department of Transportation and Development. The dam features an uncontrolled spillway with a width of 400 feet and outlet gates in the form of slide sluice gates. The dam's risk assessment is categorized as moderate, with a risk management plan yet to be detailed. With a history of modifications and a regular inspection frequency, Black Bayou Dam remains a key water resource for both recreational activities and local water supply needs.
Year Completed |
1955 |
Dam Length |
1400 |
Dam Height |
20 |
River Or Stream |
BLACK BAYOU |
Primary Dam Type |
Earth |
Surface Area |
3860 |
Hydraulic Height |
29 |
Drainage Area |
231 |
Nid Storage |
46500 |
Structural Height |
36 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
36 |
Red River At Spring Bank
|
6440cfs |
Big Cypress Ck Abv Sh 43 Nr Karnack
|
508cfs |
Black Cypress Bayou At Jefferson
|
243cfs |
Little Cypress Ck Nr Jefferson
|
341cfs |
Bayou Dorcheat Near Springhill
|
177cfs |
Sulphur Rv Nr Texarkana
|
576cfs |