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Eiffage Infra’s noise barrier on Alexanderstraße
We have previously reported on several occasions about our construction site on line 1522 between Oldenburg and Rastede at the Alexanderstraße level crossing. There are two consortia involved in this project: the construction consortium (Infra-Nordwest, Infra-Rail and an external partner) and the noise protection consortium (Infra-Lärmschutz and Infra-Nordwest).
Today we’ll be focusing on the Noise Protection Consortium and the special noise barriers made of acrylic glass.
The contract involves the construction of 11,400 m² of noise barriers, equivalent to an area of more than 44 tennis courts. In addition to aluminium elements, acrylic glass elements are also being installed here. The retaining walls were erected over a length of 1.58 kilometres and range in height from 5 metres to 9.5 metres. As part of the planning approval process and following a dialogue with local residents, DB InfraGO decided to use this more unusual material. The acrylic glass walls are designed to minimise the amount of shade cast on residents directly affected by the project.
The contract for the noise protection consortium comprises a total of 1.58 km of retaining wall and 110 m of railway bridge, including 700 posts with base plates on the retaining walls and the bridge, as well as
1.1 km of open track with 200 foundation posts, 200 foundation pipes and concrete plinth elements.
“In order to construct the retaining walls and the railway viaduct, the active track had to be diverted alongside the actual route for the entire duration of the works. This diversionary track was fitted with a temporary noise barrier for the duration of the works to protect local residents from rail traffic noise. Once the work is complete, both the track and the noise barrier will be dismantled,” reports Benjamin Raschke, site manager at Eiffage Infra-Lärmschutz.
