Road Ecology blog: Locked gate to access wildlife overpass (about 30 m wide), Hwy 69, Ontario, Canada.

This gate does not open when substantial snow has accumulated on the ground. This means researchers have to climb the fence in order to conduct their work. However, there are ways to avoid this problem. Steps may lead up to a gate that is situated about 1 m above the ground. A less expensive alternative is to have split gates, as suggested by Trevor Kinley from Parks Canada. The lower half of a gate goes up to the expected snow level, and the upper half extends to the height of the wildlife fence. In summer the upper and lower half of the gate can be locked together so the entire gate opens and closes as one. In winter the upper and lower half can be disconnected, allowing only the upper half of the gate to swing open over the accumulated snow.

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Locked gate to access wildlife overpass (about 30 m wide), Hwy 69, Ontario, CanadaLocked gate to access wildlife overpass (about 30 m wide), Hwy 69, Ontario, Canada. Gate does not open when substantial snow has accumulated on the ground.