Vesper is a concrete dam located in Wood County, Wisconsin, built in 1944. It carries a Significant hazard potential classification.
Dam profile
NID height · 13 ft13 ft tall and 125 ft long. 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 Vesper
The primary purpose of Vesper is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by , (private). It impounds the Hemlock Creek near Vesper.
The dam stands 13 feet tall and stretches 125 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 41 square miles. Completed in 1944, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 06/11/2009. That was over 17 years ago.
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Location
| State | Wisconsin |
| County | Wood |
| Nearest City | Vesper |
| River/Stream | Hemlock Creek |
| Coordinates | 44.48279, -89.97306 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 125 ft |
| Year Completed | 1944 (82 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 41 sq mi |
| Max Discharge | 2,070 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | , |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 06/11/2009 |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI00344 |
| Federal ID | WI00344 |
| More Info | State Dam Safety Program |