Improving the main trail — Dismantling & building a corduroy bridge using the harvester

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It is normally easy to recover the used in a corduroy bridge. There are two ways of doing this: one can either pick up logs directly in of the forwarder and move across the bridge, or use the to pick up logs immediately behind the wheels of the wagon and move across the bridge. The former method is limited because it is difficult to move in reverse with a loaded machine; the latter is challenging because it can be difficult to get a clear view of the log that is to be up. Corduroy bridges should therefore always be in daylight.



It is often preferable to build with the harvester if there are sufficient trees nearby. If there are too few near the planned bridge, the harvester should consider the scope for using trees that are slightly further away. If this is viable, the trees should be felled and fed towards the location of the planned bridge, after which construction can begin.

Building a corduroy bridge using a harvester:
- If one of the has valuable butt log, try to cut it off and avoid using it for building.

- Suitable should be felled and processed; the tops should be set aside. If the bridge will have to support a large , the logs should have a top diameter of at least 14cm.

- Place the bridge logs perpendicular to the direction. The orientations should alternate.

- Before driving on the bridge´s surface, you should place the “long top section” and any available on top of the bridge logs. This will the logs from stud damage.

- Be sure to properly anchor the bridge to the ground using and branches.
As soon as possible, the forwarder should add more tops and branches on the bridge, to protect wood from .