The impact of unsealed forest road networks on stream water quality has long been recognised and documented by many researchers (e.g. Takken et al., 2005; Flanagan et al., 2003; Croke and Mockler, 2001; Megahan et al. 2001; Croke et al., 1999; Montgomery, D.R., 1994 and Anderson et al. 1976). However, the importance of the degree of road-to-stream connectivity has only generated a limited amoun...