

Evaluations included analysis of traffic, safety, pavement, and structures within the corridor. The study evaluated the existing and future conditions along I-90 corridor from US 12/18 in Madison to the I-90 I-94 split in Tomah (approximately 100 miles), including a portion of I-39 from I-90/94 to WIS 16. WisDOT recently completed I-90 Madison to Tomah Needs Study (January 2022).Currently gathering data to identify corridor alternatives and potential impacts on human-made and natural resources.Public involvement activities are expected to begin in late 2022.Environmental study with no construction activities planned at this time.I-39/90/94 Corridor Study – Public involvement page. Status/phase Finalize environmental impact analysisįor more information about public involvement opportunities and other activities, visit the.*Please note, off alignment options are not being considered for this study Schedule The EIS process, which will include ongoing opportunities for public involvement, will lead to the identification of a preferred alternative. WisDOT will identify project needs and evaluate a range of alternatives in an environmental impact statement (EIS).The study will assess how best to address existing and future traffic demands, safety issues and the aging and outdated infrastructure along this portion of I-39/90/94.The study will also evaluate I-39 from the I-39 and I-90/94 split near Portage (locally known as the Petro Interchange) to Levee Road.

The Federal Highway Administration (FHWA) and WisDOT are evaluating potential improvements to the I-39/90/94 corridor in Dane, Columbia, Sauk and Juneau counties from US 12/18 (Beltline) in Madison to just north of the US 12/WIS 16 interchange in Wisconsin Dells.
