Kreate built a new railway bridge on the Oulu-Laurila-Tornio section in the Keroputaa estuary in Tornio. Work began with the pile construction of the new bridge and ended in early December 2018, on time.
In October 2018, when the railway line was unavailable, the old railway bridge was taken out, and the new bridge – spanning 97 metres and weighing 1,850 tonnes – was moved into place. Careful planning and strict timetables for the various work stages were crucial, because the overall timetable was tight and there was plenty to do during the rail services break of just three days.
The new bridge is 7.7 metres wide. The old bridge had one intermediate support, the new one has two. The work also included structures on the bridge, such as about 150 metres of new rail track, including the sleeper installation and wiring.
The 72-hour window reserved for the railway service break was not needed in full, the trains were running on the bridge as agreed.
“Work was completed on the Keroputaa railway bridge in the agreed timetable. The customer was happy with both the quality and performance, says Ari Välimaa, a supervisor at Kreate.
The plan and implement contract at Keroputaa was worth about 2.9 million euros.
Initial situation in April 2018.
New bridge being cast in September 2018.
Transfer operation in progress in late October 2018.
Completed bridge in December 2018.
Photos: Heska Korhonen, Joonas Kauppinen and Ari Välimaa.