[TowerTalk] Guy Anchors

[Donald Chester]

> I am planning after the first of the year to put up my 80ft  Rohn 45 guyed
> tower.

> Since my soil in Cheney is very rocky, I am not sure I can use the standard
> Rohn concrete anchor (dead man) (4 ft. deep, 4 ft. wide by  6 ft. cement
> anchor in rebar). I have just about solid rock 2 ft. under the surface. I
> guess I could use a jack hammer. It is too solid to do with a backhoe or
> small excavator.



> I have debated as an alternative using 8 ft. I-beams, with 6 ft. below
> ground...    Is there a better alternative?


> All suggestions appreciated.

> Mel Ming N7GCO

You don't HAVE to bury the guy anchor all the way in the ground, below grade.  You could dig down 2 ft to the bedrock, and build concrete forms to extend the rest of the 4 ft anchor above grade, letting the partially buried block rest on the solid rock.  You would have a 2 ft high 4' X 6' block of concrete above grade, but at least you wouldn't have to worry about keeping weeds cleared away from the anchor points, or someone running over a guy anchor with a mower. The soil on top of a buried anchor contributes infinitesimally to its staying power.

Don k4kyv