Graham Dam is an earth dam located in Lincoln Parish, Louisiana, built in 1976. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 468 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Graham Dam
The primary purpose of Graham Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Doctor Ag Graham (private). It impounds the Tr-cypress Creek near Vienna.
The dam stands 17 feet tall and stretches 468 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 103 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/15/2024.
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Location
| State | Louisiana |
| County | Lincoln |
| Nearest City | Vienna |
| River/Stream | Tr-cypress Creek |
| Coordinates | 32.56900, -92.69000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 14 ft |
| Dam Length | 468 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 103 acre-ft |
| Max Storage | 103 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,338 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Doctor Ag Graham |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/15/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00371 |
| Federal ID | LA00371 |
| More Info | State Dam Safety Program |