Skip to content

Waitohu Stream

Waitohu Stream

Updated 20 November 2019 12:36pm

The Waitohu Stream flows from the Tararua foothills to the Tasman Sea, north of Ōtaki. The stream, with its catchment spread over 54 square kilometres, flows through native and exotic forests, pastoral farmlands, lakes, wetlands, urban areas and coastal estuary. It has two tributaries – Mangapouri and Ngatotora Streams.

We maintain the channel in the Waitohu Stream from the coast up to Ringawhati Road. Maintenance activities carried out by us include removing obstacles from the channel (such as trees), where we have physical access. Erosion repair is the responsibility of the landowner, although we are happy to provide advice on request.

Waitohu Stream Flood Hazard

Flood hazard maps can be found on the GWRC GIS flood Hazard Areas page, or on the KCDC GIS flood extents page.

Floodplain Management Plan and Stream Study

The Waitohu Stream is included as part of the Otaki Floodplain Management Plan. This plan was endorsed by Council in 1998, and for more information you can download the Otaki Floodplain Management Plan itself.

In addition to the floodplain management plan, in 2006 we commissioned a further study of the Waitohu Stream, and to learn more about it you can read the Waitohu Stream Study.