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Originally built in the 1990s, the gabion wall protecting hikers from rockfall on the Boulder Falls trail had served its useful life, and had been damaged by the September, 2013 flood. Harrison Western was contracted by the City of Boulder to remove the old 900 SF wall and replace it in kind, and to rehabilitate parts of the hiking trail that were also damaged by the flood. Rocks for the new wall were sourced on site, and resized either with a sledgehammer or microblasters. Other scope items included removing old steel pipe railing and masonry columns, rehabilitating and widening of areas of the rock hiking trail, placing riprap, and grouting a retaining wall.