Hydrographic survey data

The Hydrographic survey of Mangawhai entrance was carried out by the Harbourmaster’s Office in December 2024.

The hydrographic surveys of the the Hātea and Kioreroa Reach channels were completed in 2020.

The hydrographic surveys for Kerikeri Inlet were carried out in September 2017.

Hātea and Kioreroa Reach channels, and Kerikeri Inlet surveys were completed by Discovery Marine Limited, to the latest survey standards. They are provided for information only.

The depths details are at Chart Datum, so are the lowest expected soundings during normal atmospheric and tidal conditions. Predicted tide height should be added to these soundings to provide the water depth.

Note that both these areas are subject to sedimentation, so soundings and associated banks can change and move over time, and particularly after heavy rain events.

Mangawhai Entrance - December 2024

Hātea River post-dredge survey report

Report - Hātea River-Post Dredge Survey - July 2020 (PDF, 1.3MB)
The log identified by K27 has been resurveyed and the log is no longer present there. It's presumed it has washed further down the harbour, possibly out to sea.