2007 Keewatin Taconite Tailings Basin Dam Raise
2007 Hibbing Taconite Tailings Basin Dam Raise
2007 ArcelorMittal Rock Dams
2006 Hibbing Taconite Tailings Basin Dam Raise
2005 Northshore Mining Reclaim Pond Dam Raise
2005 Hibbing Taconite Tailings Basin Dam Raise
2004 Keewatin Taconite Tailings Basin Dam Raise
2003 Keewatin Taconite Tailings Basin Dam Raise
2002 Hibbing Taconite Tailings Basin Dam Raise
