We are also rebuilding our city's storm water systems, getting them back to full capacity, making them stronger, and making them easier to maintain. As with wastewater, Christchurch can quickly become unsanitary when the storm water system fails. Furthermore, we become prone to flooding when we can't channel rainwater away.
What exactly is storm water?
Storm water is mostly street drainage from residential and commercial property and public hard surfaces, as a result of rainfall. From properties, it comes from roof guttering into downpipes and also from other private channelling systems. On roads and footpaths, it travels along channels (gutters) into storm water drains.
Storm water is not as clean as many of us expect. Though it arrives with rainwater, it can contain oil and grease, dog faeces, dirt and dust, fine organic matter, and plenty more beside.
- What kind of damage did the earthquakes cause?
- Physical extent of storm water system damage
- Assessing the damage
- What we're doing
Work underway on the storm water network
18 Jul 2014 - 2:34pmCentral City St Asaph/ Manchester intersection Monday and Tuesday, 21 and 22 July: No southbound journeys on Manchester after 9 am Monday, from the...
27 Jun 2014 - 4:57pmThanks to everyone who is taking care near pedestrians and cyclists and slowing through road work sites. Central City Lichfield St/ Oxford Tce...
10 Jun 2014 - 11:51amMcConnell Dowell is currently installing a new pump station on Oxford Terrace near the Manchester Street Bridge. A large area has been excavated...