Here is a brand new rusted bridge?! what's wrong with this picture? A new bridge made of new steel should be painted;- right?
The great human race has designed a new steel, called COR-TEN steel.
Weathering refers to the chemical composition of these steels, allowing them to exhibit increased resistance to atmospheric corrosion compared to other steels. This is because the steel forms a protective layer on its surface under the influence of the weather.
The corrosion-retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel is allowed to rust in order to form the protective coating.
Personally, I think it looks unfinished. Another bonus is that tagers don't have a good surface for their graffitti. If they do paint on the steel, simply wire brush it off!
The bridge is rated for 10 tons, and only meant for foot traffic and bicycles. (overkill
) Anyway, us tax payers paid for it and it was built in Minneapolis. No need to go on the bridge.