The upgrade of Johns Road (SH1), between The Groynes and Sawyers Arms Road is part of the Christchurch’s Western Corridor.
Johns Road between The Groynes and Sawyers Arms Road will be widened to two lanes in each direction with a central median. The design includes a roundabout at Clearwater Avenue and the development of a one-way service lane between Gardiners Road and Wilkinsons Road – this will improve safety by minimise the number of properties with direct access onto the highway.
As part of this project we are also planning an extension of Greywacke Road to Sawyers Arms Road running parallel to Johns Road. The extended Greywacke Link Road will allow traffic on Greywacke Road to head south on Johns Road by using the Sawyer Arm Roundabout.
The new section of Greywacke Road will be two lanes (one in each direction) with a 12m carriageway, room for parking and a shared cycleway/footpath. Stormwater will be treated and disposed to ground using a series of grassed swales and soakage basins.