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Petenwell Dam, Wisconsin

Petenwell Dam on the Wisconsin River in Wisconsin.

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44.057512, -90.020574 · Juneau County · NID WI00740. Tap the map to open this water in the live app.

What the runs do here

Wisconsin River carries no anadromous run on our corridor map, so this page makes no claim about salmon or steelhead at this dam. What it sits on is coldwater — resident trout water — and the section below says which classification says so.

The structure

Owner
Wisconsin River Power Company Public Utility
Purpose
Hydroelectric, Recreation, Flood Risk Reduction
Completed
1949
Type
Gravity
Height
50 ft
Length
41900 ft
Spillway
Controlled
Storage
530,000 acre-ft · 23,180 acre pool
Drainage
5,860 sq mi
Condition
Satisfactory · High hazard potential

From the National Inventory of Dams (USACE). Hazard potential is a downstream-consequence classification, not a statement about the structure's condition.

The water above and below

Coldwater designation is the state's own classification. A dam sits on one river and this list is every designated reach within a mile and a half of it, so a tributary mouth shows up here too.

Water right now

No USGS temperature gauge we read reports within 20 miles of this dam, so this page has no live number for it. That is a gap in the gauge network, not a judgement about the water.

Getting to it

Public access sites near the dam, straight-line distance. A dam itself is private property unless its owner says otherwise; these are the places the state lists as open.

Fly shops nearby

The river this is on

Open this water on the map →Every reach around it coloured by today's water temperature, with the access points along it.