[jim_trent]

Yes, you are being too hopeful. It is the exact opposite. Partial redundancy usually happens, however, total redundancy costs money and has to be designed in. Consequently, it is not.

[wagglebee]

It is the exact opposite. Partial redundancy usually happens, however, total redundancy costs money and has to be designed in.

And it is entirely possible that what was considered redundancy when the bridge was built forty years ago would not even meet minimum standards today.