Forest Road Engineering Guidebook - Ministry of Forests

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Forest Road Engineering Guidebook 14 • planned movement and placement of materials (balancing of design), including waste areas and endhaul areas. Drainage, construction techniques, sediment prevention, road deactivation: • culverts (locations, type, size, and skew angles) • drainage and ditch (including depth) locations • rock blasting techniques to optimize usable rock • anticipated construction problems • measures to mitigate soil erosion (including vegetative requirements and prescriptions) • measures to maintain water quality • future deactivation requirements.
3m* * Default distance from tables in Appendix 5 (distance may be less) Clearing width (see Appendix 5) Top of cut Toe of fill Road prism Road subgrade width Forest Road Engineering Guidebook Slash and debris pulled back onto fill slope Figure 2. Typical roadway on moderate slopes with no additional clearing. Stable angle 15
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Endhauling road fill pullback Endha
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Office review tion prescription and
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• vehicle usage (4-wheel drive, A
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Care should be taken in verifying i
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Field observations (prescription in
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Forest Road Engineering Guidebook B
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Appendix 1. Field identification of
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Soil consistency Soil density The c
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Appendix 2. Vertical (parabolic) cu
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Design speed (km/h) Design speed (k
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Table A2.4. Vertical curve elements
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Forest Road Engineering Guidebook A
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• PWL and HWL, where applicable
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Appendix 5. Tables to establish cle
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1. To compensate for a cut at the c
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Appendix 8. Example field data form
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Appendix 10. Landslide risk analysi
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• the type of materials involved
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Table A10.2. Example of a qualitati
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Table A10.7. Example of consequence
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