Cypress Black Bayou Site 1
Cypress Black Bayou Site 1 is an earth dam located in Bossier Parish, Louisiana, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.
About Cypress Black Bayou Site 1
The primary purpose of Cypress Black Bayou Site 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Cypress Black Bayou Recreation And Water Conservation District (local government). It impounds the Cypress Bayou near Bossier City.
The dam stands 49 feet tall and stretches 7,100 feet across, creates a reservoir covering 3,100 acres, has a maximum storage capacity of 77,000 acre-feet, and collects water from a drainage area of 155 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/22/2024.
At 49 feet, this dam is taller than 92% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Louisiana dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Louisiana |
| County | Bossier |
| Nearest City | Bossier City |
| River/Stream | Cypress Bayou |
| Coordinates | 32.65342, -93.65449 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 49 ft |
| Dam Height | 46 ft |
| Dam Length | 7,100 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 77,000 acre-ft |
| Max Storage | 77,000 acre-ft |
| Normal Storage | 25,000 acre-ft |
| Surface Area | 3,100 acres |
| Drainage Area | 155 sq mi |
| Max Discharge | 45,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Cypress Black Bayou Recreation and Water Conservation District |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/22/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | LA00013 |
| Federal ID | LA00013 |
| More Info | State Dam Safety Program |