xocgeo: The cache had been hidden in a fence support pole. Before hiding the cache, I looked at "street view" pictures and saw that the fence had been in this state for some time (years?). Since the fence was functional, I figured it was safe to assume it would remain like this indefinitely.
Unfortunately for the cache, the fence support pole was recently replaced, and the cache is now gone. The fence looks great! But, the openings have all been sealed.
This was really the only spot I could see that would support this kind of easy, out-of-the-way, sidewalk accessible hide. I've looked around, and I don't think it is possible to maintain this kind of hide elsewhere in the immediate area.
Thus, I think the best thing to do is to archive this listing and open the area to a possibly fresh cache idea.
Thanks to all who sought this cache and logged their experiences here!