Repairing the broken wires will probably mean tunneling UNDER a fifteen-foot-wide cement driveway AFTER going through the cement base the pole is in. Simpler to have a backhoe take out the planter and the current lamp post and built anew -- then I'd only have to worry about getting the tunnel and conduit under the driveway.

It appears that the driveway was laid over "outdoor" romex -- no conduit, just electric wire laid on the ground -- by a previous owner. I can't believe such shoddy work, but that's what appears was done. Lay the cable, splice it into the supply leads at one end and splice it into the wire to the light at the other.

No thought for the future....