| Topic: | Re:Re:Ancient Bridges | |
| Posted by: | Francis Rowe | |
| Date/Time: | 14/04/26 14:50:00 |
| Metal bridges can also be pretty robust and may well last for centuries as well. The Tickfield bridge, which was built only 20 years after the first evern iron bridge is still carrying traffic after two centuries. The embankment of the Thames puts more pressure on bridges so that's probably why stone bridges were not built after the later part of the 19th century. The flexibility that metal gives over stone was lost due to poor maintenance at Hammersmith Bridge - I don't know if the work being done will fully restore this but I believe that the original mechanism is still part of the design. |