No images? Click here ![]() Lyttelton Harbour Wastewater ProjectKia ora from the Lyttelton Harbour Wastewater project team. Finish line in sight for Lyttelton Harbour wastewater projectA $53 million wastewater project to improve the health of Whakaraupō/Lyttelton Harbour is a step closer to completion. A lot of work has been done above and below the ground to connect the Lyttelton Harbour's wastewater to the main Christchurch system. Four new pump stations have been built around the harbour, to serve as powerhouses to pump all of the Lyttelton Harbour communities’ wastewater over the hill to the main treatment plant in Bromley. More than five kilometres of submarine pipeline will carry wastewater from Diamond Harbour and Governors Bay to Cashin Quay in Lyttelton, before being piped to the Simeon Quay pump station. From here, wastewater will be pumped through the Lyttelton tunnel and through the newly constructed 4.5 kilometre Heathcote Valley pipeline, to Bromley. An update on Simeon QuayAll the electrical works have been completed and fully tested. Next, we need to finish pressure testing the pipes that connect the Simeon Quay pump station to Cashin Quay and the Lyttelton Tunnel. This requires us to test in sections and will means that at times we will dig down to place the pressure testing equipment on the pipeline. These pipes are tested to a pressure greater than what we will operate at the system at, so that we know that it will last for the full life of the station. The pressure vessels and back-up generator have been installed and will also be undergoing testing to ensure they are fit for purpose. The retaining walls and adjustment to the walking track are almost complete and we will soon be placing asphalt on the pump station accessway. ![]() Governors Bay walking track open againGood news, the Governors Bay foreshore track has re-opened to the public. We've finished laying the pipeline and electrical cable and have placed a layer of Teddington chip over the trench to restore it to its original condition. An update on the Heathcote Valley pipelineWork on the 4.5km Heathcote Valley pipeline is almost complete. This underground pipeline runs through the Heathcote Valley to connect Lyttelton Harbour's wastewater to the existing pump station in Woolston's Alport Place. ![]() Alport PlaceThe concrete chamber to be installed at Alport Place is close to being ready for transport to site. Soon the team will start to use dewatering equipment to lower the ground water table to allow safer and easier digging. Once this is complete and the base of the excavation is compacted, we'll use a crane to lift the chamber into place, then install the connecting pipework. We also need to construct an electrical cabinet to house the controls for automatically operating the new valves. Port Hills Road watermain replacementWe've finished replacing the watermain and submains along the 600 meter section of Port Hills Rd between Mauger Drive and Martindales Road. We've checked the road strength and are in conversations with our contractor about the refurbishment and reseal of this section of road. We're also planning to upgrade the kerb and channel along this section. Once we have confirmed the dates for these works, we will providing start work notices to keep residents informed. Contact usIf you have any concerns about our work sites, you can ring Fulton Hogan on 027 604 9335 or 027 616 3929, or contact Council on 0800 800 169 to report any issues. You received this email because you are subscribed to receive updates from Christchurch City Council. ![]() |