River Benchmarks

Benchmark vertical datum is Lyttelton Vertical Datum 1937.The river benchmarks layer shows the location of survey benchmarks used by the Council to monitor riverbed elevation change. These benchmarks are protected by the Flood Protection and Drainage Bylaw, any work proposed around these locations should be checked with the Environment Canterbury River Engineering team prior to commencing. Most of these are iron rods that are buried beneath the surface and will need specialist equipment to be located.  

Data and Resources

Additional Info

Field Value
Theme ["geospatial"]
Maintainer canterburymaps
Source http://opendata.canterburymaps.govt.nz/datasets/d772a6d89b054af58b78c2d83c7d4d7e_2
Created 2018-10-25T20:09:56.000Z
Date modified 2019-04-04T21:52:34.000Z
Language English
Spatial {"type": "Polygon", "coordinates": [[[170.4559, -44.9078], [174.071, -44.9078], [174.071, -41.9392], [170.4559, -41.9392], [170.4559, -44.9078]]]}
Source Identifier http://opendata.canterburymaps.govt.nz/datasets/d772a6d89b054af58b78c2d83c7d4d7e_2
Record created July 17, 2020, Last Updated September 2, 2020