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View the latest ‘Activity Diary’ detailing works for the New Tyne Crossing.
View the ‘360 South Junction’ image.
In Jarrow, the tunnel portals will be extended south to reduce noise and improve air quality for local people. Howard Street is being realigned to pass over the new tunnel and the refurbished existing tunnel, creating a combined new portal. The existing bridge carrying Howard Street will then be demolished.
A new interchange connecting the A19 and the local road network is being built south of the Howard Street bridge. From the southern portal, highway works extend a further 400 metres south connecting with the A19 just south of the existing Metro bridge. The existing roundabout near the southern entrance to the existing tunnel will be removed and the A19 will become a through route. The new ramp near Epinay Walk will enable full access to and from the local road network.
The new junction is designed to enable A19 traffic to flow unimpeded in and out of the vehicle tunnels on the south side of the crossing.
The existing ventilation chimney and related infrastructure near Chaytor Street in Jarrow will be modified. A new ventilation building is being constructed within the new Jarrow Interchange (at the South Approach) to serve the second vehicle tunnel.
There are several challenges facing the construction of the South Approach, not least of which is supporting the 38,000 daily vehicle movements in and out of the existing Tyne Tunnel, whilst demolishing existing infrastructure and building new structures. This involves detailed planning and coordination, and necessitates some out of hours works in order to avoid peak traffic flows.
In addition the construction of a new access road from Howard Street bridge, passing in front of Epinay Walk, requires sensitive management in order to minimise disruption to residents living nearby.
Furthermore a combined sewer has had to be diverted in order to enable the new junction to be constructed. The diverted sewer runs across the existing roundabout at the south junction, and must therefore be constructed whilst maintaining traffic movements at this busy junction.