Hollandia Infra, commissioned by ProRail, is working together with Dura Vermeer and Mammoet to replace four steel railway bridges and one concrete railway bridge on the eastern side of Amsterdam Central Station. The steel bridges have reached the end of their lifespan. Last summer, work began on removing the first bridge, the northernmost concrete trough bridge. The new bridge, currently en route to Amsterdam in three parts, is ready to be installed.
The new bridge consists of three sections, each of which is being transported on pontoons from Hollandia Infra in Krimpen aan de IJssel to Amsterdam. On Monday, 18 November, the bridge sections were placed on the pontoons using SPMTs (Self-Propelled Modular Transporters) and departed for Amsterdam. On Friday, 22 November, the first bridge section was partially submerged and transported from Sea Palace to the Oostertoegang, where it will be installed during the night of 2 to 3 December. To navigate under the lowest bridge along the route, the pontoons and part of the bridge will be submerged. This is achieved by filling ballast tanks with water.