Why there are no wake zones

In fluid dynamics, a wake is the region of disturbed flow (usually turbulent) downstream of a solid body moving through a fluid, caused by the flow of the fluid around the body. In incompressible fluids (liquids) such as water, a bow wake is created when a watercraft moves through the medium; as the medium cannot be compressed, it must be displaced instead, resulting in a wave. As with all wave forms, it spreads outward from the source until its energy is overcome or lost, usually by friction or dispersion.

http://en.wikipedia.org/wiki/Wake

btw. Click on the pictures to read the boat reg. #s, need a better view. email me at bigcreekwatch@gmail.com and I will be happy to furnish you with closeups.



Underlining and bold by me. Please notice the phrase “until its energy is overcome or lost” IN the case of a boat moving close to shore or between two close shores the wake’s eneregy is dispersed or spent on the shore line as it washes away mud and soil. This mud, soil and vegetation, now displaced by the wake sinks to the bottom where it builds up and reduces the depth of the waterway.