Roads Outnumber Streams in Developed Flathead Watersheds.

Off_the_Charts_report.pdf
Off_the_Charts_workbook.xls
Road and stream data prepared for pending revision of the Flathead Forest Plan indicate the miles of road outnumber the miles of stream in roaded sub-watersheds within the Forest boundary. Only 23% of the sub-watersheds remain roadless.
Ninety-two percent of the roaded sub-watersheds have road densities in excess of levels where most strong bull trout populations occur and in excess of recommended standards for grizzly bear recovery. Fifty-eight percent of the roaded sub-watersheds have road densities in excess of levels which significantly displace grizzly bear from otherwise preferred habitats.
This report details these findings and explains why these indicators are important for maintaining and restoring watersheds for the wildlife habitat, water quality and fish habitat they provide. Companion spreadsheets allow others to explore the data further and provide a template for investigating similar data on other Forests.
The findings point clearly to the need to consider departures from historic watershed regimes more important than departures from historic fire regimes in assessing and restoring watershed integrity and resiliency.


USFS photo of culvert removal in Big Creek.