Danville

Danville is a gravity dam located in Dodge County, Wisconsin, built in 1850. It carries a Low hazard potential classification and has a fair condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionFair2nd of 4 ratings
Emergency action planOn file
Last inspection07/17/2018
Height17 ft
Built1850176 years ago

Dam profile

NID height · 17 ft
17 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

17 ft tall and 200 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 Danville

The primary purpose of Danville is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mannlein, Tom (private). It impounds the Crawfish R near Danville.

The dam stands 17 feet tall and stretches 200 feet across, creates a reservoir covering 37 acres, has a maximum storage capacity of 190 acre-feet, and collects water from a drainage area of 190 square miles. Completed in 1850, 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 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 07/17/2018.

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Location

StateWisconsin
CountyDodge
Nearest CityDanville
River/StreamCrawfish R
Coordinates43.32064, -88.95357

Physical Characteristics

Dam TypeGravity
NID Height17 ft
Dam Height17 ft
Dam Length200 ft
Year Completed1850 (176 years old)

Storage & Hydraulics

NID Storage190 acre-ft
Max Storage190 acre-ft
Normal Storage40 acre-ft
Surface Area37 acres
Drainage Area190 sq mi
Max Discharge2,600 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerMannlein, Tom
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection07/17/2018
Emergency Action PlanYes

Identifiers

NID IDWI00123
Federal IDWI00123
More InfoState Dam Safety Program