Title 33, Navigation and Navigable WatersRelease 119-102

§27a Chicago River, West Fork of South Branch

Title 33 › CHAPTER 1 — NAVIGABLE WATERS GENERALLY › SUBCHAPTER II — WATERS DECLARED NONNAVIGABLE: CHANGE OF NAME › § 27a

Last updated Aug 21, 2026|Official source

Summary

Declares a section of the West Fork of the South Branch of the Chicago River in Cook County, Illinois, to be not navigable under U.S. law. The section runs from the west line (extended north) of the Sanitary District’s Collateral Channel in the northwest quarter of section 36 to a line 1,300 feet east of and parallel to the west line of section 30 (the South Western Avenue section line), all in township 39 north, range 13 east, third principal meridian, in Chicago, as it now exists or may later be extended. Congress keeps the right to change or repeal this.

Full Legal Text

Title 33, §27a

Navigation and Navigable Waters, Source: USLM XML via OLRC

That portion of the West Fork of the South Branch of the Chicago River in Cook County, Illinois, lying between the west line (produced north) of the Collateral Channel of the Sanitary District of Chicago, in the northwest quarter of section 36, township 39 north, range 13 east, third principal meridian, and a line one thousand three hundred feet east of and parallel to the west line of section 30 (section line in South Western Avenue), township 39 north, range 13 east, third principal meridian, in the city of Chicago, Illinois, as the same now exists or may hereafter be extended, is declared to be a nonnavigable stream within the meaning of the Constitution and laws of the United States. The right to alter, amend, or repeal this section is expressly reserved.

Reference

Citations & Metadata

Citation

33 U.S.C. § 27a

Title 33, Navigation and Navigable Waters

Last Updated

Aug 21, 2026

Release point: 119-102