The early phases of construction will be underwater and north (upstream) of the existing bridge. Therefore, there will be minimal disruptions during Winter 2021 – Spring 2022.
Traffic will remain open through the entirety of the project with intermittent traffic control until Summer 2022. In Winter 2021 – Spring 2022, one westbound lane will be closed. One lane will remain open for westbound traffic until Summer 2022. Both west bound lanes will be closed in 2022 until bridge completion. At that time, the east bound lanes will be used for one lane traffic in each direction. Width restrictions will be in place in 2022 during one lane traffic in each direction. Detours for oversize loads will be diverted to SD-204 at the Oahe Dam.
There will be limited access to the project area for the sake of safety. Any extended period lane closures will be announced via direct emails, our website, SDDOT Facebook, SDDOT Twitter, and other media outlets as necessary. Social media updates can be followed at #PierreFortPierreBridge.
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