Flow resistance in four rivers in Victoria, Australia

Our paper on flow resistance has just been published in The Australian Journal of Water Resources. This provides Manning’s n values for four Victorian Rivers:

  • Acheron River at Taggerty
  • Merriman creek at Stradbroke West
  • Mitta Mitta River at Hinnomunjie Bridge
  • Tambo River at Ramrod Creek

The surprising thing about the results was that Manning’s n was very consistent at about 0.042 for the three gravel bed sites (Acheron, Mitta Mitta and Tambo) and for a wide range of discharges.  Manning’s n for Merriman Creek was higher (0.08), probably because of the dense bank vegetation and smaller stream width.  See below for a few key figures.

Ladson, AR; Lang, SM; Smart, GM; Anderson, BG and Rutherfurd, ID. (2013) Flow resistance in four rivers in Victoria, Australia. Australian Journal of Water Resources, 16(2):173-180.

Links

Key figures

Manning's n versus discharge

Manning’s n versus discharge

Acheron River at Taggerty

Acheron River at Taggerty (n = 0.042)

Merriman Creek at Stradbroke West

Merriman Creek at Stradbroke West (n = 0.08)

Tambo River at Ramrod Creek

Tambo River at Ramrod Creek (n = 0.042)

Mitta Mitta

Mitta Mitta River at Hinnomunjie Bridge (n = 0.042)

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