Editing Øresund Bridge (section)

===Access bridges===

The access bridges are made up of 49 steel [[truss]]es resting on concrete piers. The steel spans have a length of {{convert|141|m|ft|abbr=on}} except at the bridge abutments, where they are shorter at {{convert|120|m|ft|abbr=on}}. They were manufactured by [[ACS Group|Dragados Offshore]] in [[Puerto Real]] near [[Cádiz]], Spain, one of the few companies in Europe with sufficient capacity. Steel plates from [[British Steel (1967–1999)|British Steel]] were cut and welded together to form the various components of the truss spans, which were then joined together to form {{convert|120-141|m|ft|abbr=on}} long spans. These were fitted with a reinforced concrete roadway on the upper level and a concrete railway deck on the lower level. The finished sections were towed on barges to Sundlink's facility in ''Norra hamnen''. Here, the spans were equipped with special concrete troughs for the railway tracks, footbridges along the tracks, etc. Stairs connect the road and railway levels every {{convert|700|m|ft|abbr=on}}. Three inspection gondolas are suspended under the bridge.{{sfn|Øresundskonsortiet|1998}}<ref>{{cite web |last= Andersson |first= Jenny |date=  26 February 2020|title= Den dolda vägen över Öresundsbron|url= https://www.newsoresund.se/den-dolda-vagen-over-oresundsbron/ |publisher=News Øresund|website= newsoresund.se |lang=sv|access-date=24 March 2025}}</ref>

The piers are individually designed, taking into account the calculated load and the bedrock level, resulting in the bridge gradually reaching the {{convert|57|m|ft|abbr=on}} vertical clearance of the main span. The pillars rest on concrete [[Caisson (engineering)|caisson]]s fixed in the bedrock. The pylons of the main span, as well as three piers on either side of them, are surrounded by underwater reefs to reduce the risk of larger ships colliding with the bridge. Both caissons and pylons were manufactured in the ''Norra hamnen''. The caissons, piers and truss spans were transported to their locations in the Sound by the ''Svanen'' crane barge. The bridge sections were welded together, but at regular intervals space was left for the [[thermal expansion]] of the steel.<ref>{{cite web |date= 2020|title= Öresundsbron, Malmö|url= https://www.skanska.se/vart-erbjudande/vara-projekt/57321/Oresundsbron%2C-Malmo|website= skanska.se |publisher=Skanska|lang=sv|access-date=25 March 2025}}</ref>