Section 4(f) Documents
Section 4(f), which is implemented under 23 CFR 774 (Code of Federal Regulations), is the federal act that protects publicly owned parks, recreation areas, and wildlife and waterfowl refuges.
- (March 2025) I-39 reconstruction (U.S. 20 over Kishwaukee River)
Village of Cherry Valley / Forest Preserve of Winnebago County / IDNR
To submit a comment about the 4(f) document, please use this link to submit them to the project design team.