LCCA of the Huvudnäskanalen railway bridge

According to the LCCA as well as the sensitivity analysis conducted for this case study, the bridge should absolutely not be replaced and instead should be repaired. The presented LCCA results are based on a comparison between a repair strategy that costs 2.23 Million SEK and a replacement strategy that costs 10.7 Million SEK. A discount rate of 4 % was used in the LCCA. If repair strategy can guarantee a minimum residual service life extension of 6 years, it would be more LCC-effective to repair the bridge instead of replacing. If the repair strategy can guarantee a minimum residual service life extension of 25 years, as it is expected, it would be more LCC-effective to repair the bridge instead of replacing it even if the repair strategy will cost up to 6.79 Million SEK instead of 2.23 Million SEK. The replacement option should not be implemented until the initial investment cost of a new bridge becomes less than 3.6 Million SEK instead of 10.7 Million SEK.