Hazard Warning: Hazard information may be user-submitted and unverified. Conditions change frequently. Always scout rapids and obstacles yourself.
Hazard WI Class II+

Jacobus Bridge Pier (JBP)

Menomonee - C) MenTosa: Hart Park Lane to W.Monarch Place or 4198 W.St.Paul Avenue (2.7 or 3.7 miles) (WI)

Gauge Conditions
Runnable: 125.0 – 3,000.0 CFS

Float trip with (grungy) riffles and rips.

Photo
Jacobus Bridge Pier (JBP)
Photo courtesy of American Whitewater
Description

A long-gone bridge in Jacobus Park had a pair of bridge-piers splitting the river. May of 2020, rains lifted the river over 5000 cfs. That flow pushing on a massive collection of trees was more than the right pier could withstand, and it was torn out. A bit of the footing remains and causes a disturbance at levels under 700 cfs. The bulk of the bridge pier still lies in the pool just below where it once stood. As with the pier footing, this will be visible at low flows, but will be covered at flows above 700-1000 cfs.

With that pier knocked down, this area is far less likely to become blocked with wood. However, I have seen trees hang up on the pier submerged in the pool, as well as river-right below the pool. At high flows, if you are trying to catch the right eddy, you may be pushed perilously close to that woodpile.

You may wish to scout this location while you are running shuttle to be aware of the currents and waves present, to have your approach strategy solidly in mind.

At flows of 400 -800 cfs (possibly down to 250 and up to 1000 cfs) a smooth wave lies center river just downstream of the remaining bridge pier. The wave is shallow 'up front' (no vertical action here!), but there is depth in the pool below. At higher flows the wave washes out and there are wild swirls and boils ripping through the pool, allowing stalls and squirts (if you are inclined to do so in highly questionable water quality).

Location
Type
Hazard
Difficulty
Class II+
Mile Marker
1.3 mi
Directions
View Full Run
C) MenTosa: Hart Park Lane to W.Monarch Place or 4198 W.St.Paul Avenue (2.7 or 3.7 miles)
Menomonee
II-III 3.7 mi
Hazard — Exercise extreme caution in this area.
Current Conditions
5-Day Forecast
Whitewater data from
American Whitewater