Black (Clark Co.), |
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| Usual Difficulty | I-III (may vary with level) |
|---|---|
| Length | 12.5 Miles |
| Avg. Gradient | 8 fpm |
| Max Gradient | 20 fpm |
| Name | Range | Difficulty | Updated | Level |
|---|---|---|---|---|
| BLACK RIVER AT NEILLSVILLE, WI | ||||
| usgs-05381000 | 1250 - 6000 cfs | I-III | 05h33m | 143 cfs (rc= -0.2 ) |
Listed minimum is for 'experienced' whitewater boaters. The reach is floatable much lower, but will generally be (again, for experienced whitewater boaters) a tame 'rock-dodge' run. (This may cause canoeists who are not experienced in whitewater, or boaters who do not have appropriate whitewater craft, to consider this reach very difficult and near scary at most water levels!)
| Gauge/flow analysis based on data from 1963-10-01 to 2008-05-11 | |
| Drainage area at gauge | 749 sq.mi. |
| Minimum mean daily flow during stated period | 11 cfs (1988.08.04) |
| 90% of time flow exceeds | 59 cfs |
| 10% of time flow exceeds | 1,540 cfs |
| Maximum mean daily flow during stated period | 24,900 cfs (1979.04.25) |
| 10/90 ratio ('flashy-ness') (under 3 is fairly steady, over 10 is quite 'flashy') |
26.1 |
| Average days per year over recommended 'low' threshold | 46 |
| Average days per year over recommended 'high' threshold | 5 |
Offseason ('Ice') gauge conversions:
11.5 = 9,050 cfs
10.5 = 7,230 cfs
9.5 = 5,630 cfs
8.5 = 4,220 cfs
7.5 = 3,020 cfs
6.5 = 2,030 cfs
5.5 = 1,270 cfs
| Name | Range | Difficulty | Updated | Level | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BLACK RIVER AT NEILLSVILLE, WI | ||||||||||||
| usgs-05381000 | 1250 - 6000 cfs | I-III | 05h33m | 143 cfs (rc= -0.2 ) | ||||||||
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No rapids entered. If you know names, and locations of the rapids please contact and advise the StreamTeam member for this run. 
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NWRI - Black (Clark Co.) D) Neillsville to Lake Arbutus (12.5 miles) (mobile)
