Machine was brushing out an old road that has been inactive for over 8 years and contained several wood box culverts.
The machine’s operator was moving along the road when a log stringer broke and the rear axle fell through. The front axle was lifted in the air (see photo in attached pdf).
Two excavators were required to eventually lift the machine out. The Operator was not injured.
Although all wood box culverts were visually assessed for broken stringers and structural integrity before brushing began, this incident still occurred.
• All wood box culverts are to be marked so a machine operator is aware when they are approaching or on a wood box culvert. (On very brushy overgrown roads on the coast, it can be difficult to see the wood box culvert).
• Utilize a track excavator instead of wheel excavator for brushing on old roads with questionable wood box culverts, as a track excavator will distribute the weight of the machine better.
• If there is any concern with the integrity of a wood box culvert in planning road upgrade works, have the wood box culvert replaced first and then send in the brushing machine.
For more information: Robert Ziegler – Skeena Sawmills, Terrace, BC (250) 635-6336
|Old wood box culverts require machine caution.pdf|