Delavan
Delavan is a gravity dam located in Walworth County, Wisconsin, built in 1947. It carries a Low hazard potential classification and has a fair condition assessment.
About Delavan
The primary purpose of Delavan is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Delavan (local government). It impounds the Turtle Creek near Delavan.
The dam stands 13 feet tall and stretches 100 feet across, creates a reservoir covering 164 acres, has a maximum storage capacity of 850 acre-feet, and collects water from a drainage area of 67 square miles. Completed in 1947, the structure is well-established, with more than 75 years 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 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 06/02/2021.
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Location
| State | Wisconsin |
| County | Walworth |
| Nearest City | Delavan |
| River/Stream | Turtle Creek |
| Coordinates | 42.63734, -88.64990 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 100 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 850 acre-ft |
| Max Storage | 850 acre-ft |
| Normal Storage | 606 acre-ft |
| Surface Area | 164 acres |
| Drainage Area | 67 sq mi |
| Max Discharge | 1,490 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City Of Delavan |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/02/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00321 |
| Federal ID | WI00321 |
| More Info | State Dam Safety Program |