Kulosaari metro bridge to be repaired – preparatory work begins in November
Metropolitan Area Transport Ltd will repair Kulosaari metro bridge in 2026–2028. The preparatory works for the repairs will begin next to the metro bridge in November. The actual bridge repair work will be carried out at the same time as the replacement of Junatie metro bridge between Kalasatama and Sörnäinen in 2027.
Kulosaari metro bridge between Kalasatama and Kulosaari will be repaired and its supports replaced. The preparatory works, which include the construction of a temporary work bridge next to the metro bridge for use during the repairs, will begin in the second half of November.
Repair work on the metro bridge will begin in May 2027, when the suspension of metro services required for the replacement of Junatie metro bridge begins. Until then, metro services will operate as normal on Kulosaari metro bridge.
The repair work will not require any significant traffic arrangements
The repair of Kulosaari metro bridge will not result in any significant disruption to pedestrian and cycling routes or car and boat traffic. The temporary work bridge will feature an opening through which boaters can pass.
The metro bridge is currently supported by the adjacent Kulosaari road bridge. The metro bridge’s supports will be modified so that metro services can continue when the renovation of Kulosaari road bridge begins in 2028. To this end, new supports, anchored by piles bored into the seabed, will be built for the metro bridge. The work will cause occasional noise and vibration in the immediate vicinity. The dates for the piling work will be announced separately in the area specified in the noise permit.
During the actual bridge works in 2027, repairs will be carried out on the waterproofing as well as the surfacing and surface structures of the metro bridge, among other elements.
Kulosaari metro bridge is a 420-metre-long bridge completed in 1973. The bridge has been used by the metro since 1982.
The repair work on the metro bridge will be carried out by Kreate Oy.
Metro stations and several bridges to be renovated during metro service suspension
Metro services between Herttoniemi and Hakaniemi stations will be suspended from 3 May to 8 December 2027. While the metro services are suspended, Metropolitan Area Transport Ltd will replace Junatie metro bridge between Kalasatama and Sörnäinen. The preparatory works for the replacement of the bridge started in spring 2026.
Metropolitan Area Transport Ltd will also utilise the suspension of metro services caused by the replacement of Junatie metro bridge to carry out repairs on other metro infrastructure. These include the repair of Kulosaari metro bridge, Kulosaari pedestrian tunnel, the northern metro bridge at Kulosaari station and Tupasaarentie metro bridge and the replacement of Naurissalmi metro bridge. In addition to this, Metropolitan Area Transport Ltd will carry out renovations at Sörnäinen and Kulosaari metro stations.