Dells Lake
Dells Lake is a gravity dam located in Eau Claire County, Wisconsin, built in 1866. It carries a Low hazard potential classification and has a poor condition assessment.
About Dells Lake
The primary purpose of Dells Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Borntreger, Herman (private). It impounds the Bridge Creek.
The dam stands 27 feet tall and stretches 80 feet across, creates a reservoir covering 75 acres, has a maximum storage capacity of 560 acre-feet, and collects water from a drainage area of 66 square miles. Completed in 1866, the structure is one of the older dams in the region, with over a century and a half 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 06/24/2015. That was over 10 years ago.
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Location
| State | Wisconsin |
| County | Eau Claire |
| Nearest City | None |
| River/Stream | Bridge Creek |
| Coordinates | 44.72542, -91.14892 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 80 ft |
| Year Completed | 1866 (160 years old) |
Storage & Hydraulics
| NID Storage | 560 acre-ft |
| Max Storage | 560 acre-ft |
| Normal Storage | 409 acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 66 sq mi |
| Max Discharge | 2,100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Borntreger, Herman |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/24/2015 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00038 |
| Federal ID | WI00038 |
| More Info | State Dam Safety Program |