This article shows how Strathclyde Regional Council, Scotland's no-dig methods for replacing old lead water pipes under roads can offer large savings in time and money. The pipes need to be removed quickly because they are quite a serious environmental health hazard. No-dig methods have the following advantages: (1) they are about twice as quick as conventional open cut methods; (2) their direct money cost is not much more; (3) they avoid disruption to traffic, other road users and local inhabitants; (4) they do not involve repeated disturbance to road surfaces; (5) they minimise the risk of interference with other underground utilities like gas and electricity. Strathclyde's no-dig programme has been subject to close monitoring by its engineers since its introduction on a trial basis in 1983. Monitoring has revealed savings which suggest that no-dig can achieve almost twice as many pipe renewals for the same expenditure as conventional trenching. Development of suitable equipment should reduce the cost of no-dig still more. The chief problem in its introduction to Strathclyde seems to have been the opposition of supervisors and workmen to the new techniques.

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  • Corporate Authors:

    Reed Business Information, Limited

    Quadrant House, The Quadrant
    Brighton Road
    Sutton, Surrey  United Kingdom  SM2 5AS
  • Authors:
  • Publication Date: 1990-1-18


  • English

Media Info

  • Pagination: p. 19-20
  • Serial:
    • Volume: 173
    • Issue Number: 5078
    • Publisher: Hemming Group, Limited
    • ISSN: 0039-6303

Subject/Index Terms

Filing Info

  • Accession Number: 00606710
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM