Is weathering steel a viable alternative for under less than ideal climatic conditions?
In a word yes. Weathering steel performs successfully when designed and detailed according to the published FHWA and Industry guidelines for its use. When used properly, uncoated weathering steel is by far the most cost-effective material for bridges when considering either first or long-term costs. The FHWA has developed guidelines from 1989 (Technical Advisory – Uncoated Weather Steel Structures) that are still valid, though currently under review and will be supplemented with more data.
