Trumer designed and supplied a rockfall attenuator fence as part of a highway widening project along the Trans Canada Highway (Hwy 1), approximately 400 km east of Vancouver, BC, Canada. The fence is just less than 200 m long with the head of the posts up to 40 m above the highway. The design is based on the TSC-500-ZD H4, which is a 4 m high, 500 kJ ETAG27 tested system. 8 m long Omega-Net panels are draped from the upper bearing rope. The lower bearing rope has been removed from the base plates and runs through the net towards the bottom of the net. The tail of the system consists of High Performance Netting which is sewn to the Omega-Net and drapes up to approximately 30 m below the fence. Geohazard analysis and mitigation design was carried out by EBA Tetra Tech while geotechnical design for anchorage was provided by Ryzuk Geotechnical Engineering. Emil Anderson Construction installed the systems as part of their overall project.
