2024 42 USC 4029 – Colorado River Floodway

2023 42 USC 4029 – Colorado River Floodway

2022 42 USC 4029 – Colorado River Floodway

2021 42 USC 4029 – Colorado River Floodway

2020 42 USC 4029 – Colorado River Floodway

2018 42 USC 4029 – Colorado River Floodway

2017 42 USC 4029 – Colorado River Floodway

2015 42 USC 4029 – Colorado River Floodway

2014 42 USC 4029 – Colorado River Floodway

2013 42 USC 4029 – Colorado River Floodway

2012 42 USC 4029 – Colorado River Floodway

2010 42 USC 4029 – Colorado River Floodway