Cliffs fined $120,000 for knowing about crumbling walkway at Northshore Mining, but not fixing it before injury Workers said they told management about the walkway issues "for years" but that nothing had been done to fix the structure. 9:59 am, Mar. 5, 2021 × Cleveland-Cliffs’ Northshore Mining in Silver Bay. (Clint Austin / 2020 file / News Tribune) Northshore Mining faces $120,000 in fines after showing “reckless disregard” for worker safety when it failed to repair known issues in an elevated walkway before a section failed in September 2016, injuring one worker. The Silver Bay pellet plant, owned by Cleveland-Cliffs, failed to maintain its outer walkways and did not provide barricades or warning signs on the crumbling walkways — which each warranted a $60,000 fine.