Raised duckboards, Ypres salient

[593jones]

I have just been reading 'A Moonlight Massacre The Night Operation On The Passchendaele Ridge, 2nd December, 1917' by Michael Locicero, and came across a reference to raised duckboards on the battlefield.  I am well aware of the prolific use of duckboards in the muddy conditions of the battlefield, and seen the many photographs, but have never come across duckboards being raised above the ground before.  

They are mentioned in the text and in a quote from a reply to an after action questionnaire from Lt. Col C R H Stirling, 2nd Royal Berkshires, 25 Brigade. 'The duckboards were raised too high above ground, so when the men got off where were gaps, it was difficult to get on again'.

Does anyone have any knowledge of these, i.e. how high off the ground were they, what type of support or trestle was used?

Edited 23 August , 2023 by 593jones