| Area |
North Fork Big River |
| Topic |
Sediment: Matthews Road Construction by NF Basin 1921-2000 |
Click on image to enlarge (104K). Click here to display a larger version (192K).This image, from Matthews and Associates (2001) Appendix B-2, shows roads and construction period in the North Fork Big River Planning Watershed. The North Fork Planning Watershed is also the North Fork Big River CalWater sub-basin. This Planning Watershed has a road density of 6.64 mi/sq mi, which exceeds the properly functioning condition set by the National Marine Fisheries Service (1996), which is less than 3 mi/sq mi.
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Click on image to enlarge (104K). Click here to display a larger version (192K).