2024 16 USC 441b – Construction of highway by State of South Dakota

2023 16 USC 441b – Construction of highway by State of South Dakota

2022 16 USC 441b – Construction of highway by State of South Dakota

2021 16 USC 441b – Construction of highway by State of South Dakota

2020 16 USC 441b – Construction of highway by State of South Dakota

2018 16 USC 441b – Construction of highway by State of South Dakota

2017 16 USC 441b – Construction of highway by State of South Dakota

2015 16 USC 441b – Construction of highway by State of South Dakota

2014 16 USC 441b – Construction of highway by State of South Dakota

2013 16 USC 441b – Construction of highway by State of South Dakota

2012 16 USC 441b – Construction of highway by State of South Dakota

2010 16 USC 441b – Construction of highway by State of South Dakota