Watercourse Assessments and Stream Ecological Valuations (SEVs)

Client: Auckland Council

 This map shows the catchment-by-catchment progress of stream surveys carried out in the Auckland region by Morphum Environmental and other consultants. The green areas show surveyed catchments.

This map shows the catchment-by-catchment progress of stream surveys carried out in the Auckland region by Morphum Environmental and other consultants. The green areas show surveyed catchments.

Morphum Environmental has undertaken watercourse assessments, prepared watercourse management plans and delivered Watercourse Assessment Reports (WARs) for approximately 474 kilometres of watercourses in 39 catchments throughout Auckland. This thorough method generates large quantities of data that is captured digitally by consultants in the field.

The Watercourse Assessment Method (WAM), prepared by Morphum Environmental for Auckland Council, is a systematic method for assessing stream health and associated values, threats and opportunities. Catchment data is analysed and contextualised to inform enhancement opportunities and management objectives. In addition, it describes how key stakeholders, such as residents and communities, can actively play a role in stream enhancements. To compliment the WAM, Morphum Environmental has been instrumental in the development of a standardised geodatabase through which the data for Auckland Council’s Watercourse Assessment Reports (WAR) is collected and analysed.

Key deliverables:

  • Watercourse Assessment Reports (WAR) and geodatabases for the Ngakoroa, Otara, Lincoln and Swanson, Riverhead, Red Beach, Puhinui and Waimahia catchments.

  • Watercourse Assessment Reports for future urban areas of Warkworth, Orewa and Silverdale

  • Geospatial data (GIS) collection through mobile technology.

  • Detailed stream ecological health, stormwater infrastructure and conveyance information analysed to inform effective catchment management.

  • Specific management actions and enhancement opportunities identified to improve watercourses, enhance degraded streams and remedy specific stormwater issues, while recognising future growth pressures in the catchments.

Cat Davis

Environmental Scientist