Feb 2 2011
NCC Construction Sweden (STO:NCCA)(STO:NCCB) has been commissioned to demolish and replace two existing bridges that cross the railway at Rotebro, in Sollentuna municipality.
The client is the Swedish Transport Administration and the order value is approximately SEK 325 M. Construction is scheduled to commence in February 2011.
The E4 Highway, both northbound and southbound, cross the bridges. A challenge will be to demolish and replace the bridges while allowing road and railway traffic to pass the worksite with as little disruptions as possible.
NCC has a method where the new eastern bridge will be constructed in a provisional location and used as a temporary detour during the construction period. After this, the existing western bridge will be demolished and replaced by a new one. Further, the existing eastern bridge will also be demolished and the new eastern bridge will be pushed into its permanent position. In this manner, there will be two separate bridges throughout the majority of the construction period, each with three lanes where road-users will be able to pass.
”We have chosen a solution that provides more uniform traffic rhythm, less exhaust fumes and noise since the risk for queues will decrease,” says Sören Backlund, Business Manager of NCC Construction, Region Stockholm/Mälardalen.
During the two summer weeks, when the bridge has been pushed aside, road users will be able to pass using two lanes in each direction, with a speed of 70 kilometers per hour.
The construction will occupy an average of 45 people and the project is scheduled for completion during the spring of 2014. The order will be registered in the first quarter of 2011.
Source: http://www.ncc.se/