Canoeing Guide to Western Pennsylvania

Roy Weil and Mary Shaw (eds)

Key to the Columns of the River Tables


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River
Which river
Section
Which section of the river: start and stop
Dist
Distance - length of the section
Class
Based on International Scale of River Difficulties, class I to class VI, augmented by A, B, C for smooth water
Grad
Gradient: first number is mean drop in ft/mile; second is maximum drop (see the Guide for technical details)
Area
Size of drainage basin, square miles
AvgCFS
Average flow, cubic ft per second. Note that this varies widely through the year.
Size
Qualitative description of the river's size, for the less technically inclined
Nearby Gauge
A stream gauge that is on this river and close enough to be reasonably correlated with the section
Lo OK
Lowest gauge reading for safe and pleasurable canoeing. Note: for water up to class III, the high and low tend to reflect water levels for open canoes. Decked boats may prefer more water.
Hi OK
Highest gauge reading for safe and pleasurable canoeing
Aux Gauge
A stream gauge somewhere in the general vicinity that may give some guidance, but cannot be assumed to be as well correlated as a gauge that's actually on the river. Also, an unofficial gague such as a staff gauge or instructions to count bricks on a bridge pier.
Lo OK
As above
Hi OK
As above
CG Page
The page number of the writeup of this section of the river in Canoeing Guide to Western Pennsylvania and Northern West Virginia
Updated 8/15/95 by Mary Shaw
Comments to maintainer