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Geological report on the Cotter dam and the aggregate used in the concrete for the dam

Created 16/10/2025

Updated 19/11/2025

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In a memorandum dated 28th February, the Superintending Civil Engineer of the Department of the Interior stated that cracks were showing in the Cotter dam, and that these were serious enough to warrant an investigation as to whether there were minerals in the aggregate likely to cause expansion on decomposition. Visits were made to the Cotter dam and the adjacent rock quarries, and this report embodies the results of those visits and subsequent investigations. All possible geological factors likely to affect the stability and strength of the dam were investigated and, even though it was subsequently found that some of them could have little or no effect on the dam, they are discussed in this report.

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Field Value
Title Geological report on the Cotter dam and the aggregate used in the concrete for the dam
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/27ca2c4a-a4d8-46f5-98eb-3e1c32edbf82
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        148.5,
        -36.0
      ],
      [
        150.0,
        -36.0
      ],
      [
        150.0,
        -35.0
      ],
      [
        148.5,
        -35.0
      ],
      [
        148.5,
        -36.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Geological report on the Cotter dam and the aggregate used in the concrete for the dam". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/geological-report-on-the-cotter-dam-and-the-aggregate-used-in-the-concrete-for-the-dam