Gauge Information

Gauge Description:

As of September, 2001, a USGS gauge at Skanee Road is online. That gauge is sufficiently far downstream (after the end of the lower listed whitewater section of this river) that the flow (cfs) reading is probably misleading for this upper reach. 

According to at least one boater's report:

8.50'   475 cfs   'moderate'
8.00' 325 cfs 'moderate low'
7.43'   everything is runnable, but getting quite scrapey

Gauge analysis based upon USGS gauge data from 2001.10.01-2010.09.30
minimum mean daily flow        4 cfs (Aug.17-18, 2007)
maximum mean daily flow 3,180 cfs (May 12, 2003)
90% flow
(90% of the time flow equals or exceeds this value)
      13 cfs
10% flow
(10% of the time flow equals or exceeds this value)
    160 cfs
10/90 ratio
(<3 means fairly even flows, >10 means a rather flashy stream)
      12.3

Using the currently defined range of runnability (7.47'/200 cfs to 9'/695 cfs), expect this to be runnable 27 days per year (on average).

 

 

Best months to catch it:

April (runnable days: 14.11 average; low of 2, high of 22),

March (runnable days: 3.67 average; low of 0, high of 9),

October  (runnable days: 3.33 average; low of 0, high of 10),

May (runnable days: 3.11 average; low of 0, high of 7),

and it has run in every month but Jan/Feb. 

Offseason ('Ice') correlations:
9.00' = 695 cfs
8.75' = 607 cfs
8.50' = 522 cfs
8.25' = 433 cfs
8.00' = 348 cfs
7.75' = 274 cfs
7.50' = 205 cfs
7.40' = 181 cfs

Disclaimer: Be aware that indication of a 'runnable' level by the gauge does not necessarily mean that the river is runnable. In winter, gauge readings may be 'ice affected'. Sections of the river may be impassable due to ice. Use discretion for late fall, winter, and early spring runs.

The 'boaters gauge' is to look at the river downstream of Arvon Road. If it looks a bit rocky ('marginal') you probably have a decent level! If there are no rocks showing, prepare for a beefy run!

Boaters also use a 'measure down' gauge at the bridge at Skanee Road. Measuring down from underside downstream left on NEW bridge there: 72" down appears to equate to -22" on old bridge (I.E. relative minimum level for runnability). Desirable (runnable) levels may be 60" to 69" down, with 70"-73" runnable but getting scrapey.

Also, I have received word that If you measure down from the bottom of the concrete on the bridge on the upstream left side and subtract that number from 14.81 feet, that will give you the gage height (this will correlate very nicely with the USGS gage height that appears on the web).

 

Gauge Information

Name Range Difficulty Updated Level
SILVER RIVER NEAR L'ANSE, MI
usgs-04043150 7.47 - 9.00 ft II-III(IV) 00h57m 6.84 ft (rc= -0.2 )
Too low for any reasonable whitewater experience. (Under 100 cfs.)
Gauge (64.7 Sq.Mi. drainage) is well downstream (at Skanee Road). Gauge flow would considerably exaggerate flow in this reach, so we use stage reading.
RangeWater LevelDifficultyComment
0.00 -7.00 ft extremely Low-somewhat Low II-III(IV) Too low for any reasonable whitewater experience. (Under 100 cfs.)
7.00 -7.47 ft somewhat Low-barely Low II-III(IV) Very marginal/minimal flows (100-200 cfs). Bump-and-scrape for most drops. "E.L.F." (Extreme Low Flow) run may be possible.
7.47 -7.84 ft barely runnable-med runnable II-III(IV) Low-to-moderate flows (200-300 cfs). Some areas will be a scrape, but not a bad trip overall.
7.84 -8.46 ft med runnable-a bit pushy runnable III-IV(V) Moderate flows (300-500 cfs). Recommended for teams of well-experienced whitewater boaters.
8.46 -9.00 ft a bit pushy runnable-high runnable III-IV+(V) High flows (500-700 cfs). Very big and pushy. Experts only!
9.00 -9.50 ft somewhat High-somewhat High IV-V(V+) Unusually high flows. (Over 700 cfs). Seriously big and pushy. Extreme caution recommended for any who opt to run.
9.50 -20.00 ft somewhat High-extremely High IV-V+ Epic high flows. Expect a portage fest. Extreme caution urged.

Report - Reports of Silver A) 'Upper Silver': Silver Rd to Arvon Rd (2.3 miles) 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
Silver [MI] Cabin Section n/a Boris Glick
Silver River [MI] Cabin Section 7.43' (Minimum) Rob Smage
3y283d09h11m Upper Silver [MI] Steve runs Hail Mary 8' Mike Croak
5y302d09h11m Silver River [MI] Silver Bullet Bob 263 cfs Mike Croak
6y313d17h11m Silver [MI] 1st Pitch Hail Mary 8.2-8.3 Nate Alwine
6y314d17h11m Silver [MI] Silver Bullet 8.2-8.3 Nate Alwine
7y316d17h11m Upper Silver [MI] Steep drop on upper Silver 7.6' Mark Mastalski
9y278d09h11m Silver [MI] Cabin Section Silver 220 cfs / 7.6' Rob Smage
> 10 years Silver [MI] Main Drops on the Upper Good Rob Smage