2 September SH1 Southbound Detours at Night from Sunday 6 September September 2, 2020 By Waimakariri District Council Community, Environment, General From this weekend, the Christchurch Northern Corridor team will be installing gantries on SH1 around and near the Waimakariri Bridge, north of Christchurch. This will involve lane and full road closures at night, says Waka Kotahi NZ Transport Agency, through to October. A gantry is a steel overhead support structure to hold traffic signs. In total on SH1 seven gantries will be installed. Two on the north side of the Waimakariri Bridge and five south of the bridge. Poles will be installed on the east and west sides of SH1 first, and then the gantry is placed on top. A gantry is a steel overhead support structure which will hold traffic signs. “To install the gantries safely, we need to reduce traffic lanes or close both lanes in one direction for several nights. For one full night, we will need to close all motorway lanes in both directions,” says Colin MacKay, Waka Kotahi Portfolio Delivery Manager. There will be well signposted detours in place during any overnight closures. You can view the timetable of closures here. The lane closures or diversions will be in place from 10pm till 5am the next day, over 18 nights (see timetable below). With lane reductions, lane closures and traffic diverted, traffic movements will be slower than usual, so please expect delays, says Mr MacKay. On SH1 there will be seven gantries: two on the north side of the Waimakariri Bridge and five south. The new Christchurch Northern Corridor motorway will also have seven gantries in key locations. Several of the gantries will hold the new T2/carpool lane signs on the Christchurch Northern Corridor. “We first install poles on both sides of SH1 and then position the gantry on top. To do this safely, both southbound lanes going towards Christchurch will be closed at night on Sunday 6 September, Monday 7 September and Tuesday 8 September. Southbound traffic will be diverted via the old Main North Road Bridge over the Waimakariri River,” says Mr MacKay. Chaneys off-ramp Chaneys off-ramp will be closed overnight Tuesday, 8 September. One night with traffic diverted both directions For one night, Wednesday 30 September, when the largest gantry is being installed, all motorway traffic, in both directions, will be diverted. “The work is weather dependent and we hope to have it all completed well in time for the motorway opening just before Christmas,” says Mr MacKay. “Please reduce your speed in this area during all the work. We thank everyone for their cooperation and for being patient around our work sites and people to date.” You can find out more about the various traffic changes and diversions coming up over the next month here. Expect delays With lane reductions, lane closures and traffic diverted, movements will be slow. Please plan your journey and expect delays at night. When traffic is reduced to one lane, a 60km/h speed limit will be in place. Sign up for project updates about the Christchurch Northern Corridor. Contact: Waka Kotahi NZ Transport Agency Phone: 0800 262 200 Email: info@cncalliance.co.nz Related Articles Keeping a Guide promise from home Lockdown has not stopped Rangiora Girl Guides from keeping their Guide promise. Since the Government’s announcement on 23 March, Girl Guiding New Zealand stopped all face to face meetings and switched to doing fun activities over Zoom. Although there may not be any camps for a while, Brownies and Guides are busy completing badges from home. At Rangiora Girl Guides, 11 Brownies are completing their Be Creative, Techno World and Heritage badge, while 22 Rangiora Guides are ... From Mayor Dan Gordon It is great to be at Level 1. 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