High masts are specified by the area they must light, not by the height alone. For a port container yard, uniformity and vertical illuminance matter as much as the lux level on the ground.
A lowering device lets maintenance happen at ground level, which is safer and cheaper over the life of the installation. Specify manual or electric winch according to the height and the site's maintenance capability.
Wind load must be calculated for the actual luminaire area, not the bare pole. The foundation drawing follows from that calculation, together with the anchor bolts and the concrete class.
Hot-dip galvanising after fabrication is the standard for coastal and industrial sites. For very aggressive environments, specify a duplex coating with powder paint over the galvanised surface.
