This bill introduces a new section to chapter 46A-10A of South Dakota law, allowing counties to administratively approve certain drainage applications through a designated drainage administrator. The bill specifies that the administrator can grant or deny permits for drainage projects that outlet into various types of waterways, including named creeks, permanent or intermittent streams, public or private road right-of-ways, and unnamed waterways. However, specific conditions must be met, such as obtaining written approval from affected landowners and the appropriate road authority when necessary.

Additionally, the bill defines "affected landowners" as those who are upstream within half a mile, downstream within one mile, or within a quarter mile surrounding the project. All other drainage permit applications that do not meet these criteria must be addressed by the board or commission according to the existing permit system. This legislative change aims to streamline the drainage permitting process while ensuring that landowners' rights and environmental considerations are respected.