Virginia Lake is an earth dam located in Sauk County, Wisconsin, built in 1971. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 21 ft21 ft tall and 1,400 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 Virginia Lake
The primary purpose of Virginia Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lake Virginia Management District (local government). It impounds the U/n Trib to Copper Creek.
The dam stands 21 feet tall and stretches 1,400 feet across, creates a reservoir covering 35 acres, has a maximum storage capacity of 450 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1971, 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 10/20/2011. That was over 14 years ago.
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Location
| State | Wisconsin |
| County | Sauk |
| Nearest City | None |
| River/Stream | U/n Trib to Copper Creek |
| Coordinates | 43.52719, -89.93401 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 1,400 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 450 acre-ft |
| Max Storage | 450 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,300 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lake Virginia Management District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/20/2011 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00892 |
| Federal ID | WI00892 |
| More Info | State Dam Safety Program |