I-90 South Dakota

SDDOT is completing preliminary and final design for I-90, Exit 46 (Elk Creek Road).

Due to COVID-19 restrictions, the opportunity to provide feedback will be virtual. The comment period closes April 9, 2021.

Find additional project details:

North Maple Ave under I-90 in Rapid City will be closed to vehicle traffic beginning Mon., March 8, 2021. Detour routes will be available.

Pedestrian & bicyclist access will be maintained beneath bridge.

For project information: https://t.co/xPD6WMdmOg or https://t.co/jAj5PbAmq4

On March 15, 2021, guardrail work resumes on I-90 in eastbound & westbound lanes at mile markers 23, 25, & 27 near Whitewood.

Traffic reduced to a single lane in each direction. I-90 speed limit reduced to 65 mph through work zone & 45 mph when workers present.