A SURVEY OF DRAINAGE DESIGN PRACTICE OF AUSTRALIAN LOCAL GOVERNMENT AUTHORITIES

Results are presented of a recent survey of urban and rural drainage design practice of all local government authorities in Australia. Large inconsistencies in all aspects of design practice were revealed, and these appear to result from three causes:- 1) a lack of appreciation of the economic importance of small hydraulic structures (estimated to cost $280 million per year); 2) inconsistencies in, and between design manuals; and 3) lack of readily usable data for improvement of design methods and manuals. The survey showed that the rational method of flood estimation is used for most design work for both urban and rural areas. Main Roads Authority manuals have a major influence on design practice since they are preferred to "Australian Rainfall and Runoff" in rural areas and are used about equally with ARR in urban areas (a). (TRRL)

Media Info

  • Features: References; Tables;
  • Pagination: p. 335-342

Subject/Index Terms

Filing Info

  • Accession Number: 00330272
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • ISBN: 0 85825 124 8
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM