Duckboards

A duckboard is a platform made of wooden slats built over muddy ground to form a dry passageway. ==Hiking== Duckboards are used to allow hikers to safely pass moist areas of ground, such as a swamp or shores of a lake. Specially wide duckboards are often used to provide wheelchair access. Duckboards are nailed into their support logs at the end of...
Found on http://en.wikipedia.org/wiki/Duckboards

Duckboards

slatted boards which allow a person to walk over a vulnerable surface eg a lead gutter without damaging that surface. They should be positioned in such a way that they allow any water that gathers to 'wind blow' dry. (Illustration)
Found on http://www.encyclo.co.uk/local/20935
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