Nekoosa is a gravity dam located in Wood County, Wisconsin, built in 1889. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 32 ft32 ft tall and 1,075 ft long, taller than 74% 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 concrete gravity section and the water level is illustrative.
About Nekoosa
The primary purpose of Nekoosa is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Domtar Wisconsin Dam Corp (private). It impounds the Wisconsin River near Nekoosa.
The dam stands 32 feet tall and stretches 1,075 feet across, creates a reservoir covering 400 acres, has a maximum storage capacity of 3,400 acre-feet, and collects water from a drainage area of 5,525 square miles. Completed in 1889, the structure is over a century 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/26/2019.
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Location
| State | Wisconsin |
| County | Wood |
| Nearest City | Nekoosa |
| River/Stream | Wisconsin River |
| Coordinates | 44.31170, -89.89330 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 1,075 ft |
| Year Completed | 1889 (137 years old) |
Storage & Hydraulics
| NID Storage | 3,400 acre-ft |
| Max Storage | 3,400 acre-ft |
| Normal Storage | 1,680 acre-ft |
| Surface Area | 400 acres |
| Drainage Area | 5,525 sq mi |
| Max Discharge | 39,960 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Domtar Wisconsin Dam Corp |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/26/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WI00818 |
| Federal ID | WI00818 |
| More Info | State Dam Safety Program |