2024 33 USC 605 – Operation of snag boats on Upper Mississippi River

2023 33 USC 605 – Operation of snag boats on Upper Mississippi River

2022 33 USC 605 – Operation of snag boats on Upper Mississippi River

2021 33 USC 605 – Operation of snag boats on Upper Mississippi River

2020 33 USC 605 – Operation of snag boats on Upper Mississippi River

2018 33 USC 605 – Operation of snag boats on Upper Mississippi River

2017 33 USC 605 – Operation of snag boats on Upper Mississippi River

2015 33 USC 605 – Operation of snag boats on Upper Mississippi River

2014 33 USC 605 – Operation of snag boats on Upper Mississippi River

2013 33 USC 605 – Operation of snag boats on Upper Mississippi River

2012 33 USC 605 – Operation of snag boats on Upper Mississippi River

2010 33 USC 605 – Operation of snag boats on Upper Mississippi River