Drainage area 597 square miles.
There is a "Falls Road" which nears the river from the East (river-right). If this run is attempted (with permissions from the tribe), it is likely you will wish to take out here to get the two areas of gradient, and minimize the long flatwater which exists downstream.
Drainage area at our listed take-out is approximately 960 sq.mi. (as calculated via USGS StreamStats Beta software).
The cited gauge lies right at the put-in for this reach. As a result, the reading will be a very accurate reflection of boatability of this reach. Best levels for boating are uncertain, but due to lack of major rapids, the reach is probably boatable nearly all year.
Gauge/flow analysis (based on most recent 50 years of data)
Drainage area at gauge: 597 sq.mi.
All time minimum flow: 27 cfs
90% of time flow exceeds: 120 cfs
10% of time flow exceeds: 1,360 cfs
All time maximum flow: 22,000 cfs
10/90 ratio: 11.3 ('flashy-ness': under 3 is fairly steady, over 10 is quite 'flashy')
Average runnable days per year: 170
Offseason ('Ice') correlations:
3.00' = 322cfs
3.50' = 537cfs
4.00' = 780cfs
4.55' = 1090cfs
5.30' = 1570cfs
6.60' = 2520cfs
7.00' = 2850cfs
7.19' = 3000cfs
Permits are not required for this reach.
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