Holzer Flowage is an earth dam located in Taylor County, Wisconsin, built in 1962. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 8 ft8 ft tall and 860 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 Holzer Flowage
The primary purpose of Holzer Flowage is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wisconsin Department of Natural Resources (state). It impounds the Tr-shoulder Cr.
The dam stands 8 feet tall and stretches 860 feet across, creates a reservoir covering 55 acres, has a maximum storage capacity of 180 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1962, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 04/16/2021.
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Location
| State | Wisconsin |
| County | Taylor |
| Nearest City | None |
| River/Stream | Tr-shoulder Cr |
| Coordinates | 45.29439, -90.84125 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 860 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 180 acre-ft |
| Max Storage | 180 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 55 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 30 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Wisconsin Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/16/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI01023 |
| Federal ID | WI01023 |
| More Info | State Dam Safety Program |