Upper Bayou Nezpique No 3
Upper Bayou Nezpique No 3 is an earth dam located in Evangeline Parish, Louisiana, built in 1974. It carries a Low hazard potential classification and has a fair condition assessment.
About Upper Bayou Nezpique No 3
The primary purpose of Upper Bayou Nezpique No 3 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Evangeline Parish Police Jury (local government). It impounds the Tr-cypress Creek.
The dam stands 24 feet tall and stretches 2,150 feet across, creates a reservoir covering 700 acres, has a maximum storage capacity of 5,495 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 02/27/2024.
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Location
| State | Louisiana |
| County | Evangeline |
| River/Stream | Tr-cypress Creek |
| Coordinates | 30.82900, -92.47900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 21 ft |
| Dam Length | 2,150 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 5,495 acre-ft |
| Max Storage | 5,495 acre-ft |
| Normal Storage | 2,800 acre-ft |
| Surface Area | 700 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 1,530 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Evangeline Parish Police Jury |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 02/27/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00046 |
| Federal ID | LA00046 |
| More Info | State Dam Safety Program |