MasterBlaster
Administrator Emeritus
It sure looks like FUN.
I agree without reservation with your last sentence of fourth para, Carl.
You guys have a lot more outdoors than we do, but if you don't start taking care of it, America will end up looking like Europe.
An aside, are Oregon rivers typically rock lined and have clear flowing water? Most of Mississippi isn't like that.
With the four wheeler videos, none of that is connected to a water way and are man made water structures built with the intent of riding. The last part of the longer video is a racing track on a 550 acre riding park with roughly 22 miles of trails. The cloudy water is most likely due to low alkalinity of the water keeping the particles in suspension.
I agree that atv tires can tear up the surface causing both mechanically and hydraulically formed ruts although both are readily fixable with modern heavy equipment. The amount of sediment being added to the water ways from that is by my estimation quite negligible sources of sediment. My county has a water area of near 3%. To put sediment contamination in perspective (for me at least), the Mississippi Delta's hugely fertile alluvial plains was created by soil erosion. In some areas the fertile soil can be over 30' deep and covers ~13k square miles. I read that it's estimated that the Mississippi River moves around 160 million tons of sediment per year.
I disagree on ATVs causing subsurface compaction, given their low contact pressure and my understanding of how soil compaction works from an engineering front, I highly doubt the influence depth is deeper than a foot around here. Also the surface area disturbed by off roading activity is substantially lower than our infrastructure.
It's an interesting topic I'm enjoying researching.
I agree without reservation with your last sentence of fourth para, Carl.
The rivers are running much cleaner today.