One big disadvantage is that rust isn't as strong as new steel, so enough rust and the bridge might collapse. They look ugly, too.
London Bridge cannot rust. It is a pre-stressed concrete bridge.
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Oil based-Jane Ortega
To prevent rusting of an iron girder on a bridge, protective coatings can be applied such as paint, galvanization, or epoxy coatings. Regular inspections for signs of corrosion and timely maintenance such as repainting or repairing any damage can also help prevent rusting. Additionally, proper drainage systems on the bridge can help mitigate exposure to moisture, which accelerates rusting.
The disadvantages of a girder bridge is that it's expensive to build. It is also very hard to maintain. It needs to have access to the confined space of the girderbox.
it is maintained because of the way its built. It is built to be strong and powerful.
sky bridge has a lot of Adventages
write it properly here
The advantages of a bascule bridge is swiss cheese with a dash of pepper
Rusting is an irreversible process.
Yes, it is correct.