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Investigation of soil thickness along route of Woden-Stromlo water main, ACT 1966

Created 16/10/2025

Updated 16/10/2025

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Geological and seismic traverses were conducted, and augering was done, along the route of the Woden-Stromlo Water Main, with the purpose of estimating the thickness of soil and weathered bedrock - collectively termed soil - that is soft enough to be excavated by trenching equipment. Ekperience in similar work has Shown that this thickness is indicated approximately by the depth to which the power auger used in the investigation is capable of drilling. The seismic velocities of the soil and underlying material can be related, empirically, to their amenability to mechanical excavation. Material with a seismic velocity greater than.5000 feet per second is generally too hard to excavate without some blasting. The geological estimate, made during a brief reconnaissance along the route of the water main, is based on the commonly observed depths of weathering of the bedrock. The estimates of soil thickness obtained by the three methods are generally in reasonable agreement. Locally, the auger stopped at shallow depths, presumably where it encountered hard rock fragments or boulders in the soil. At some localities the seismic results were indefinite, and the final estimate of soil thickness was based on results of augering.

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Additional Info

Field Value
Title Investigation of soil thickness along route of Woden-Stromlo water main, ACT 1966
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/8e4fed9a-966e-46a7-b4ef-f5db5c0cc887
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        149.0,
        -35.5
      ],
      [
        149.5,
        -35.5
      ],
      [
        149.5,
        -35.0
      ],
      [
        149.0,
        -35.0
      ],
      [
        149.0,
        -35.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Investigation of soil thickness along route of Woden-Stromlo water main, ACT 1966". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/investigation-of-soil-thickness-along-route-of-woden-stromlo-water-main-act-1966