NRS-16442 | Bore Log Books and Plans

The role of this series is to identify the location of bores sunk during railway construction. The series consists of volumes which contain two types of plans - ground plans indicating the location of the bores (identified by an alpha-numeric symbol) and longitudinal sections of the bores which show the composition of the strata and the depth and quantity of water. Loose inside some of the volumes are 'Boring Records', or data collection sheets compiled by the Concrete & Soils Laboratory. These record the details of individual bores and form the basis of the sectional plans. The data included is the street location, hole number, ground level data, type of drill, diameter, cased to, depth of water table, name of the officer who carried out the drilling and the date. The composition of the stratum is measured and described. The items in this series relate to the City Railway, Eastern Suburbs Railway, the Metropolitan Railways extension and Southern Suburbs Railway. Most of the records in this series are undated.Custody History From 1955 until 2000 the State Rail Authority of New South Wales maintained an ‘in house archives’ consisting of the archival records of the Authority, its predecessor agencies and the private railway companies taken over by the government. The date ranges of the records were from 1849 until 2000. When the decision was made to close the ‘State Rail Archives’ the parts of the collection that were required as State archives were transferred to the State Records Authority of NSW. Those record series were incorporated into the State Records series system of archives control and were re-numbered.This series was formerly part of the State Rail Archives collection where it was identified as series R253. It may have been viewed in the State Rail Archives as series R253 and could have been previously cited as such in notes by researchers at State Rail Archives or in publications or in publications or unpublished works.