Innovation in construction minimises local disruption
To minimise disruption in the local area during the construction and installation of our four highways bridges, we’ve adopted a construction method called Design for Manufacture and Assembly (DfMA). This means that we are making the bridge shell units for the modular highways bridges off site, in a factory in Nottinghamshire. Once each unit has been finished, it is brought to the Interchange area and put together at the relevant bridge site.
Traditional methods of bridge building require prolonged road closures and disruptive equipment such as cranes. By using the DfMA method of construction, we’re able to minimise the quantity and duration of traffic measures on the local road network and drastically reduce the time needed to install the bridges.
This method saw the early reopening of the M42 in August 2020 and the A452 and A446 in October 2020. With the safety of the public and our staff at the heart of what we do, adopting off-site construction also allows us to carry out rigorous safety checks on each module before it is installed. This reduces the risk of defects that could result in further road closures to carry out future maintenance.
Connecting the new road network with existing routes
LM will remain operational in the Interchange area until approximately 2022. In preparation for LM’s departure, work sites in the area will be gradually passed to HS2’s main works contractor Balfour Beatty VINCI, known as BBV. This handover is required because each contractor is responsible for developing and connecting different parts of the remodelled and improved road network, in preparation for the future HS2 Interchange Station.
LM will complete the first stage of the network improvements by installing four highways bridges by the end of 2020 (as detailed above). LM will also continue to carry out works and traffic measures on and around Northway Island, including Northway and on the B4438 and A452. This will enable LM to continue to remodel these routes to later be connected to our highways bridge over the M42.
Throughout our works, different stretches of the road network will be affected along different routes for varying durations of time. This phasing will prevent the network becoming overburdened.
Upon the completion of these works, LM will have created a new T-junction and an elongated roundabout, known as a longabout, to the west of the M42, which will replace the current roundabout over the motorway, and a smaller roundabout, both routes to the National Exhibition Centre. In the future, road users and pedestrians will be able to safely access all routes and businesses east of the motorway by using our bridge over the M42.
From mid-2021, BBV will be responsible for remodelling and improving the remainder of the existing network and creating other new routes on HS2 land east of the M42. These works will fully connect the entire network in the area including the four highways bridges.
Where can I get more information?
If you have any questions regarding our works in the Interchange area, please contact the HS2 Helpdesk. You can contact our Helpdesk team all day, every day on: