Koningin Máximabrug (“Queen Máxima bridge”)
The Dutch Alphen a/d Rijn local authorities awarded civil-engineering contractor Mobilis TBI the contract for building the Koningin Máximabrug and corresponding access roads.
As a construction partner of Mobilis, Hollandia Infra has been responsible for the steel structures and movement.
The bridge is expected to open at the end of 2016.
The main reason why Mobilis and Hollandia won the contract is the development of a smart approach, which guarantees a minimum of interruptions and a maximum of safety for the surrounding area during the process and also high levels of sustainability throughout the project.
The work is carried out on a Design & Construct basis.
The “Koningin Máximabrug” is an energy-neutral double bascule bridge (of the tail bridge type) of a modern design and with a bridge opening of 14.2 metres. The movable section of the “Koningin Máximabrug” consists of two parallel tail bridges, one of which also has a cycling/pedestrian lane. The so-called tails can be found on both sides of the mechanised bridge sections, with the outer tail being wider than the inner tail.
The bridges are driven by two separate hydraulic driving gears, consisting of two hydraulic cylinders and a hydraulic aggregate.
The “Koningin Máximabrug” has 2 x 2 lanes and a cycling & pedestrian lane, which towers above the Oude Rijn and its banks in three sections at a height of more than five metres. The bridge is moved by means of about. 400 tons of ballast.
The larger Oostbrug weighs 280 tons and the smaller Westbrug weighs 230 tons.
In total, both decks are approx. 35.5 metres wide, the Oostbrug measuring 21 metres and the Westbrug 14.5 metres.