Puzzles
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.
History
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.