Aug 10, 2009 12:13 pm
Re: Pole Mounting - Use the Pole as Ground?
Concrete isn't a problem.
In my area, Ufer grounds (concrete encased) are common.
(3) Concrete-Encased Electrode.
An electrode encased by at least 50 mm (2 in.) of concrete, located within and
near the bottom of a concrete foundation or footing that is in direct contact with the earth, consisting of at least 6.0 m (20 ft) of one or more bare or zinc galvanized or other
electrically conductive coated steel reinforcing bars or rods of not less than 13 mm (1.2 in.) in diameter, or consisting of at least 6.0 m (20 ft) of bare copper conductor not smaller than 4 AWG. Reinforcing bars shall be permitted to be bonded together by the usual steel tie wires or other effective means. Where multiple concrete-encased electrodes are present at a building or structure, it shall be permissible to bond only one into the grounding electrode system.
The OP's pole does not meet the requirements as a ground rod or a Ufer.
The zinc plated steel mentioned by Tom is not accepted by our local authorities. It must be copper clad. The testing for a single rod is too much of a hassle to deal with. So, you drive two, or use the Ufer.