- Interchange History and Need (PDF)
- Preliminary Design Report
A design report/study was produced in 2010 for the I-494/I-35W interchange that produced information that was then considered during the 2012-2013 concept design phase.
View preliminary design report (PDF)
View the executive summary with alternative concept figures (PDF)
View the preliminary design report appendices (PDF)
- I-494 Storm Water Alternatives Study
A 2007 study was conducted to help determine the best means for storm water drainage of I-494 from Penn Avenue to the Minnesota River.
View the storm water alternatives study (PDF)