Dubay
Dubay is a concrete dam located in Portage County, Wisconsin, built in 1942. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Dubay
The primary purpose of Dubay 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 Consolidated Water Power Company (private). It impounds the Wisconsin River near Stevens Point.
The dam stands 40 feet tall and stretches 8,630 feet across, creates a reservoir covering 7,800 acres, has a maximum storage capacity of 128,800 acre-feet, and collects water from a drainage area of 4,822 square miles. Completed in 1942, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/19/2022.
At 40 feet, this dam is taller than 87% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wisconsin dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Portage |
| Nearest City | Stevens Point |
| River/Stream | Wisconsin River |
| Coordinates | 44.66520, -89.65070 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 8,630 ft |
| Year Completed | 1942 (84 years old) |
Storage & Hydraulics
| NID Storage | 128,800 acre-ft |
| Max Storage | 128,800 acre-ft |
| Normal Storage | 128,000 acre-ft |
| Surface Area | 7,800 acres |
| Drainage Area | 4,822 sq mi |
| Max Discharge | 150,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Consolidated Water Power Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/19/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00784 |
| Federal ID | WI00784 |
| More Info | State Dam Safety Program |