Stream Bed and Bank Stabilisation: Mountain Creek. Final Report October 2011.

TL;DRAbstract

The objective for this study was to assess stream bed and bank erosion processes in a\ndefined reach of Mountain Creek. The assessment process was developed by the\nAustralian Rivers Institute (ARI) in conjunction with the Canadian Rivers Institute and\nused principles detailed in previous study cases (Newbury et al., 1993). In using this\napproach, several conclusions can be made about the current condition of the project\nreach and its trajectory in channel recovery:\n1. Slope analysis of Mountain Creek showed the project reach has a similar bed\nslope to upstream reference reaches and the old channel that was abandoned\npost 1992. This would suggest down-cutting of the stream bed since the\nchannelisation of the reach has reached an equilibrium. The presence of riffle\nstructures along the project reach and the clay lens that have previously been\ndiscussed in other reports may be sufficient to stabilize the current bed slope.\nAggradation of the bed is evident in downstream section

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