The City of Manistee discovered two sinkholes occurring along the edge of railroad tracks on the south side of the city. The cause was determined to be a 52-inch collapsing double-walled brick storm sewer--installed in the early 1900s – that ran along the tracks and discharged into the Manistee River. Time was of the essence, so the City and Abonmarche Engineering quickly enlisted Team Elmer’s to complete the emergency rehabilitation of 55-feet

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