Renovation of Kikkerbilssluis lifting bridge - Hollandia

Renovation of Kikkerbilssluis lifting bridge

In January 2022, the renovated bridge of the Kikkerbilssluis will be completed. Hollandia Infra was commissioned by Hollandia Services to carry out the renovation. In October 2021 the renovation started on site, with as highlight the replacement of the steel fall in November. The four striking lift towers and the movement work were dismantled and renovated at Hollandia. The operating and control systems were completely replaced. The public and limited space in the centre of the capital and the large flow of traffic across the bridge made this a challenging project. The renovation of this bridge is a collaboration between Hollandia Infra and Hollandia Services, who designed and replaced the complete operating and control systems. This assignment falls under the framework agreement for large-scale maintenance of civil engineering works (ROGO) between the Municipality of Amsterdam and Hollandia Services.

Closing an important traffic intersection in the heart of Amsterdam is not something you do easily; it was unacceptable to the emergency services as well. For this reason, the renovation was dependent on traffic restrictions that were requested well in advance, and the major lifting operations were carried out during the weekends and nights. The work, in particular the major lifting operations, had to be carried out simultaneously with the modification of the road layout and the replacement of the asphalt around the bridge.

Electrical engineering & installation
The E&I department of Hollandia Services replaced the entire operating and control installations of the bridge. The installation was inspected on our own premises in Krimpen aan den IJssel. This was done by means of a FAT (Factory Acceptance Test). During this test, the hardware and software of the installation were inspected.

The Kikkerbilssluis lift bridge dates back to 1941 in its current form. It was one of the first bridges to have levers instead of doors. In the 20th and 21st century, the bridge became an important link in the East-West route through the city. Incidentally, the name has nothing to do with real frogs’ legs. The lift bridge is named after ‘de Kikkerbil’, a neighbouring timber yard from the 17th century. A frog’s butt is said to be a piece of wood that was used in shipbuilding.