Jefferson Marsh Wrp - South

Jefferson Marsh Wrp - South is an earth dam located in Jefferson County, Wisconsin, built in 2004. It carries a Low hazard potential classification and has a fair condition assessment.

About Jefferson Marsh Wrp - South

Jefferson Marsh Wrp - South is a dam in Jefferson, Wisconsin. The dam is owned by Wisconsin Department Of Natural Resources (state). It impounds the Deer Creek.

The dam stands 9 feet tall and stretches 14,880 feet across, creates a reservoir covering 691 acres, has a maximum storage capacity of 1,532 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 2004, the structure is relatively new.

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 08/03/2020.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyJefferson
River/StreamDeer Creek
Coordinates42.95714, -88.74889

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Height9 ft
Dam Length14,880 ft
Year Completed2004 (22 years old)

Storage & Hydraulics

NID Storage1,532 acre-ft
Max Storage1,532 acre-ft
Normal Storage500 acre-ft
Surface Area691 acres
Drainage Area16 sq mi
Max Discharge604 cfs
Spillway TypeControlled

Ownership & Safety

PurposeOther
OwnerWisconsin Department of Natural Resources
Owner TypeState
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection08/03/2020
Emergency Action PlanYes

Identifiers

NID IDWI20049
Federal IDWI20049
More InfoState Dam Safety Program

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