Stainless of the right grade to address the problem is project-killingly expensive. There is work on evaluating alternative kinds of reinforcement not subject t

Stainless of the right grade to address the problem is project-killingly expensive. There is work on evaluating alternative kinds of reinforcement not subject to the same kinds of rust problems, but extremely few organizations today plan, build and maintain over the kinds of timescales where this comes into play. They'll give lip service to those timescales, but watch what they do with their budgets, not what they say.