A Technical Manual for Landowners, Loggers, and ... - Forestry

R O A D S, S K I D T R A I L S , L A N D I NG S & S T R E A M C R O S S I NG S
R O A D S, S K I D T R A I LS , L A N D I NG S & S T R E A M C R O S S I NG S
Table 4.3
Spacing of Water Bars On Skid Trails
Main Haul Road
Log Landings
Grade of Skid Trail (%)
Distance Between Water Bars (ft)
2 250
5 135
10 80
15 60
Skid Trails
20 45
30 35
Main Haul Road
Log Landings
Temporary Haul Road
40 30
L a n d i n g s
Landings are cleared areas where logs are collected for loading and transport.
Landings are used for stacking, decking, bunching and limbing of logs. The
concentration of activities at landings may cause compaction, erosion or
sedimentation.
Skid Trails
Temporary Haul Road
Figure 4.10
Designated skid trails (top) vs. logger’s choice (bottom). Note the additional length
and number of skid trails. Limit the number and length of skid trails to minimize the
amount of area disturbed by skidding (adapted from Nebraska Forest Service, University of Nebraska).
Recommended Practice Standards and Guidelines
■ Avoid locating landings in Streamside Management Zones (SMZs).
■ Construct landings with 3 to 10 percent slopes for adequate drainage.
■ Minimize the number and size of landings. No more than 3% of the
harvest area should be occupied by roads and landings.
■ Locate landings away from natural drainages and divert runoff away
from streams.
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