About the project
Minnesota River Valley flooding has created maintenance and travel challenges for the local community and MnDOT for decades. After completing a Flood Feasibility Study in 2017 and securing state funding in 2020, Hwy 93 will be raised approximately eight feet, putting it one foot above historic high-water events.
The lowest point of Hwy 19 (east of Henderson) will need to be extended to offset impacts to the floodway when Hwy 93 is raised. This Hwy 19 work between the Minnesota River Bridge and railroad bridge will take place in 2022, in advance of Hwy 93 construction starting in 2023.
Sibley County also received flood mitigation funding for CR 6. Between 2022 and 2024, CR 6, Hwy 19, and Hwy 93 will all have improvements related to flood mitigation.
Schedule of Henderson-area flood mitigation projects
Summary of work
- Reconstruct roadway to extend the lowest point of Hwy 19
- Add erosion control to the north side shoulder
Benefits
- Offset floodway impacts from future construction on Hwy 93
- Provide a safe and accessible route in and out of Henderson during high-water events
- Improve smoothness of roadway
Traffic impacts
Hwy 19 traffic will be detoured during construction:
Highway 19 detour map - 2022 construction
(click for larger view)