Norfolk County Council want to build Postwick Hub to "improve capacity for access to the new Broadland Gate commercial development area and also the planned Norwich Northern Distributor Road". However, as we now know, planning permission for Broadland Gate and Postwick Hub has been quashed by the High Court.
The Works shall comprise:
A47 / A1042 Postwick Interchange Improvement
Full detailed description of relevant works associated with the work to be carried out on the trunk road in association with this Section 6 agreement.
It is proposed to modify the existing grade separated dumbbell junction to improve
thereby delivering future growth in Broadland District including the for access to the new ‘Broadland Gate’ commercial development area and also the planned Norwich Northern Distributor Road. This will be achieved by the following:
1. Construction of a second road bridge over the A47 Trunk Road;
2. Construction of a new roundabout, which will be a County Road, at the northern end of the new A47 overbridge, together with associated diverge and merge slip roads, which will be Trunk Road, from and to the A47 Trunk Road eastbound carriageway;
3. Closure of the existing eastbound diverge and merge slip roads to and from the existing
northwest dumbbell roundabout at Broadland Way;
4. Conversion of the existing southeast dumbbell roundabout at the Postwick Park &
Ride site, which is County Road, to a signal controlled junction, with associated realignment of the westbound merge slip road which is Trunk Road.
5. Modifications to the existing road bridge over the A47 Trunk Road.
The parts of the above works which fall within the terms of the Section 6 Agreement are described in the Schedule of works below.
Schedule of works
i). Construction of a new bridge over the A47;
ii). Replacement of the parapets to the existing A47 overbridge and remodelling of the existing road layout to provide 3.0m lanes (2no southbound and 1 northbound) and widening of the western side to accommodate a non segregated pedestrian and cycle facility;
iii). Modification to the northern abutment of the existing overbridge by replacing the
generally sloping paved embankment with a vertical retaining structure;
iv). Modification of the existing diverge slip road from the eastbound carriageway of the A47 Trunk Road and construction of a realigned section of this slip road beyond the nosing to the northern boundary of the Trunk Road, through the modified northern span of the existing overbridge;
v). Removal of part of the existing diverge slip road in iv) above, leading to the north west roundabout of the existing dumbbell junction, together with the dedicated left slip road to the A1042;
vi). Construction of a new merge slip road connecting the new roundabout at 2. above, from the northern boundary of the Trunk Road to the termination of its taper with the eastbound carriageway of the A47 Trunk Road;
vii). Removal of the existing merge lane from the existing northwest roundabout of the dumbbell junction, over its entire length including the dedicated left slip from Broadland Way dual carriageway;
viii). Realignment of a section of the west-bound merge slip road from the signal controlled conversion of the existing southeast dumbbell roundabout;
ix). New road pavement construction and reshaping of existing carriageway in
connection with all of the above;
x). Consequent installation of new and alterations to existing surface water drainage
systems including infiltration ponds or similar features / devices as may be required;
xi). Consequent alterations to existing verges and earthworks and the construction of new verges and earthworks;
xii). Consequent alterations to road markings,
and road signs, safety fences and provision for future VMS;
xiii) Providing or modifying existing footpath / cycleways;
xiv). Consequent alterations to existing and provision of new street lighting equipment;
xv). Consequent landscaping of areas beyond the highway verge including areas of existing slip roads to be removed above;
xvi) Closure of the existing ‘entry only’ private means of access to The Grange and the construction of a new access track to the north of the new trunk road eastbound merge slip road.