Hiwassee is an earth dam located in Oklahoma County, Oklahoma, built in 1950. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 44 ft44 ft tall and 1,550 ft long, taller than 89% of U.S. dams with a recorded height. 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 Hiwassee
The primary purpose of Hiwassee is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Hiwassee Improvement Co (private). It impounds the Tr-deep Fork Riv near Luther.
The dam stands 44 feet tall and stretches 1,550 feet across, creates a reservoir covering 132 acres, and has a maximum storage capacity of 3,100 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 02/04/2016. That was over 10 years ago.
At 44 feet, this dam is taller than 89% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oklahoma |
| County | Oklahoma |
| Nearest City | Luther |
| River/Stream | Tr-deep Fork Riv |
| Coordinates | 35.65215, -97.30381 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 1,550 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 3,100 acre-ft |
| Max Storage | 3,100 acre-ft |
| Normal Storage | 2,400 acre-ft |
| Surface Area | 132 acres |
| Max Discharge | 7,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Hiwassee Improvement Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/04/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK02432 |
| Federal ID | OK02432 |
| More Info | State Dam Safety Program |