US 51 (Stoughton Road) North Project – Environmental information

Final Environmental Assessment (EA) and Finding of No Significant Impact (FONSI)

The Federal Highway Administration and the Wisconsin Department of Transportation signed the EA/FONSI for the US 51 (Stoughton Road) North Corridor Study on July 21, 2025.

Main Sections

Section 1 - Environmental Document Availability and Hearing Summary
Section 2 - EA Template
Section 3 - Factor sheets
Section 4 - Maps

Appendices

Appendix A - Process Initiation letter
Appendix B - Transportation Improvement Program documents
Appendix C - Purpose and need report
Appendix D - Alternatives screening technical report
Appendix E - Proposed corridor typical sections
Appendix F - [Revoked]
Appendix G - [Revoked]
Appendix H - Public surveys
Appendix I - Public involvement documentation
Appendix J - City of Madison coordination
Appendix K - Bicycle and pedestrian workshop documentation
Appendix L - Dane County Regional Airport coordination
Appendix M - Agency coordination
Appendix N - Conceptual relocation plan
Appendix O - Runway protection zone analysis memo
Appendix P - Temporary occupancy letter
Appendix Q - [Revoked]