BridgInnova has been developing tech and solutions on renew or replacement of age of bridges in USA which most of the railway bridges are approaching their service life.  

Age of railway bridges in USA are so lot

The research is ongoing under the following points:

---Ability to replace all bridge segments < 8 hours break-down time – maximum allowable schedule interruption.

---Flexible and dependable equipment – replace concrete, steel, or timber (remove) bridges.

---Strong engineering support

---Lower costs for replacement on longer and or higher bridge where crane can not easy to be located near bridge for lifting.

----Less civil work nearby the old bridge