Low Level Bridge Replacement Program
Low Level Bridge Replacement Program
The Low Level Bridge Replacement Program consists of the replacement of seven (7) existing steel bridges on the BHP Newman Main Rail with new concrete culvert structures to ensure sustainable, safe operation of the railway and to consider future haul capacity expansion.
Due to the clients operating requirements, each bridge has to be replaced within a twelve (12) hour shutdown window. Each new concrete bridge is constructed offline approximately 10 meters adjacent to the existing bridge.
Freyssinet is engaged to lift and slide the existing bridge out of the rail alignment, and lift, slide and lower the new bridge into final position in the rail alignment with tight installation tolerances within a two (2) hour duration in order that the subsequent rail and finishing works could be completed on time.