Advantages
- As this type requires no counterweights the complete weight is significantly reduced as compared to other moveable bridges.
- Where sufficient channel is available to have individual traffic directions on each side the likelihood of vessel-to-vessel collisions is reduced.
- The central support is often mounted upon a berm along the axis of the watercourse, intended to protect the bridge from watercraft collisions when it is opened. This artificial island forms an excellent construction area for building the movable span as the construction will not impede channel traffic.
Read more about this topic: Swing Bridge
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