Gauge Information

Name	Range	Difficulty	Updated	Level
Grandfather Falls Natural Channel
virtual-139947	1500 - 6000 cfs	II(III)	01h58m	~ 0 cfs (too low)
	Minimal flow in bypassed reach. Too low for reasonable whitewater run. Flow info weekdays 7am-4pm : 715-536-8114 or -7289.
Merrill gauge times 0.8225 *approximates* flow at Grandfather Falls. Penstock capacity 2,820 cfs not removed for 2017. Must confirm with on-site inspection.
Range Water Level Difficulty Comment -2820 - 0 cfs extremely Low-somewhat Low II-III+(IV) Minimal water ('fish flow' of 50 cfs) in bypassed reach. Completely within penstock capacity. 0 - 500 cfs extremely Low-somewhat Low II(III) Minimal flow in bypassed reach. Too low for reasonable whitewater run. Flow info weekdays 7am-4pm : 715-536-8114 or -7289. 500 -1500 cfs somewhat Low-barely Low II(III) Likely lower than anyone really wants; Possibly bump-and-scrape boatable, or selected spots for PnP. Flow info weekdays 7am-4pm : 715-536-8114 or -7289. 1500 -2000 cfs barely runnable-med runnable II-III+ Good boatable flows. Flow info weekdays 7am-4pm : 715-536-8114 or -7289. 2000 -4000 cfs med runnable-a bit pushy runnable II-III(IV) Moderate boatable flows. Flow info weekdays 7am-4pm : 715-536-8114 or -7289. 4000 -6000 cfs a bit pushy runnable-high runnable III+(IV) High! Some may find it fun, but many may be intimidated. 6000 -12000 cfs somewhat High-somewhat High III-IV+(V) HUGH! BIG WATER! (Bring your 'A-game'!) Serious push, big waves and big holes! 12000 - unknown cfs somewhat High-extremely High IV-V Epic flows! Extreme caution is urged!
WISCONSIN RIVER AT MERRILL, WI
usgs-05395000	2820 - 12800 cfs	II-III+(IV)	01h56m	~ 2320 cfs (too low)
	Likely too low for decent whitewater on most of run. (Only 'fish flow' of ~50 cfs.)
Gauge is downstream in Merrill. Dams regulate flow. **2017: Penstocks being replaced! All flow in channel!** Flow info weekdays 7am-4pm : 715-536-8114 or -7289
Range Water Level Difficulty Comment 0 -2820 cfs extremely Low-barely Low II-III+(IV) Likely too low for decent whitewater on most of run. (Only 'fish flow' of ~50 cfs.) 2820 -3300 cfs barely runnable-med runnable II(III) Likely only 50-500 cfs in bypassed reach. Marginal/minimal flows. 3300 -5300 cfs med runnable-a bit pushy runnable II(III) Possibly 500-1500 cfs. Likely lower than ideal, but possible bump-and-scrape boatable or selected PnP spots. 5300 -7800 cfs med runnable-a bit pushy runnable II-III(IV) Possibly 1500-3600 cfs. May be ideal boatable flows. 7800 -12800 cfs a bit pushy runnable-high runnable III+(IV) Unusually high flows. BIG WATER!!! Caution is urged. 12800 -22800 cfs somewhat High-somewhat High III-IV(V) Massive big-water flows. Extreme caution! 22800 - unknown cfs somewhat High-extremely High IV-V EPIC flows! Extreme caution is urged!