Gauge Information

Name Range Difficulty Updated Level
Rock near Covington Approximation
virtual-130833 150 - 600 cfs II-III+ 01h39m ~ 86.72656 cfs (too low)
gauge class Likely too low for reasonable whitewater run.
Virtual guage based on relative drainage of Rock at Hwy.28 vs. Sturgeon at Sidnaw. Correlation is not assured.
gauge graph
RangeWater LevelDifficultyComment
0 - 100 cfs extremely Low-somewhat Low II-III+ gauge is important or has warning Likely too low for reasonable whitewater run.
100 - 150 cfs somewhat Low-barely Low I-II(III) gauge is important or has warning Possibly marginal flow for ELF (Extreme Low Flow) run. We need your input! Add a comment about gauge reading and perceived boatablility and class/difficulty.
150 - 250 cfs barely runnable-med runnable I-II+(III) gauge is important or has warning Likely low boatable flows. We need your input! Add a comment about gauge reading and perceived boatablility and class/difficulty.
250 - 400 cfs med runnable-a bit pushy runnable II-III+ gauge is important or has warning Likely moderate flows. We need your input! Add a comment about gauge reading and perceived boatablility and class/difficulty.
400 - 600 cfs a bit pushy runnable-high runnable III-IV gauge is important or has warning Likely high flows. We need your input! Add a comment about gauge reading and perceived boatablility and class/difficulty.
600 - 900 cfs somewhat High-somewhat High III-IV+ gauge is important or has warning Unusually high flows. Caution is urged.
900 -1500 cfs somewhat High-extremely High III-IV+ gauge is important or has warning (Near) Record flows. Flood levels. Extreme danger. No eddies!
STURGEON RIVER NEAR SIDNAW, MI
usgs-04040500 500 - 2000 cfs II-III+ 01h37m ~ 368 cfs (too low)
gauge class Likely too low. (~0-125 cfs)
Expect flows to be 20-25% of this reference gauge on the Sturgeon. Always confirm actual Rock River flow via visual inspection of it's boater's gauge.
gauge graph
RangeWater LevelDifficultyComment
0 - 500 cfs extremely Low-barely Low II-III+ gauge is important or has warning Likely too low. (~0-125 cfs)
500 -1000 cfs barely runnable-med runnable I-II(III) gauge is important or has warning Likely low/doable. (Perhaps 100-250 cfs)
1000 -1600 cfs med runnable-a bit pushy runnable II-III+ gauge is important or has warning Likely moderate flows (Perhaps 200-400 cfs)
1600 -2000 cfs a bit pushy runnable-high runnable III-IV gauge is important or has warning Likely high flows (Perhaps 320-500 cfs)
2000 -20000 cfs barely High-extremely High III-IV+ gauge is important or has warning Likely unusually high flows (over 400-500 cfs)

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