Gauge Information

Gauge Description:

Call 715-536-8114 or -7289 weekdays 7am-4pm for flow info.

According to Madison Hoofers (and PaddleGuides website), if Merrill gauge > 10k, this reach is likely runnable. Those sites further suggest the capacity of the penstock and powerplant is only 2500 cfs, which would seem to indicate that flows in excess of that should start putting water in this reach. I have seen the river at 'fish flow' (summer trickle), and it would appear that this could certainly be boatable with much less than the 10,000 those sites suggest. To be sure, it would be more technical and there would be fewer choices of lines, but it should be boatable.
If you can provide better flow information, please use the "Add a Comment" button in the "Comments" tab.

Gauge Information

Name Range Difficulty Updated Level
WISCONSIN RIVER AT MERRILL, WI
usgs-05395000 10000 - 20000 cfs II-III+(IV) 02h33m ~ 1470 cfs (rc= -0.9 )
Reach is dewatered unless flows exceed power-plant capacity/demands. Call 715-536-8114 or -7289 weekdays 7am-4pm for flow info.
RangeWater LevelDifficultyComment
10000 -20000 cfs barely runnable-high runnable II-III+(IV) Best/likely boatable flows uncertain! Help us out! Add a comment or report!

Report - Reports of Wisconsin C) Grandfather Falls (1 mile) and related gauges

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

Reports

When River/Gauge Subject Level Reporter
258d12h01m /Wisconsin-C) Grandfather Falls [WI] Grandfather Falls Dam 0 cfs Thomas O'Keefe
3y234d07h33m /Wisconsin-C) Grandfather Falls [WI] Main Ledge at low water too low to run Rob Smage
9y306d06h33m Wisconsin [WI] WI, Wisconsin River, Grandfather Falls n/a Mark Mastalski