Slippery Rock
For a correlation between the USGS Gauge at Wurtemburg and staff gage at the mill.
Level Conver. Calculator
Keel Hauler Rating below Eckert's Bridge is 13 and is suitable for open canoes.
Mill levels from 0' to 3' are normal, 5' is a high level with roller coater waves, rating 18, section is 6 mi long.
The most popular section for kayakers is from PA 422 to Eckert's bridge. This 3 mi long section rates 21 and is paddleable from -0.5' to 3'.
Above 3' it is very pushy and rating increases to 24.