Cal. Harbors and Navigation Code § 106

The following streams and waters are also navigable and are public ways: The north branch of Alameda Creek, from its mouth to Eden Landing. The streams and sloughs emptying into Eel River. The streams and sloughs south of Eureka, in Humboldt County, which prior to January 2, 1873, were used for the purpose of floating logs or timber. The sloughs south of Humboldt Point, in Humboldt County, which at high water mark have a depth of two feet of water, and which are wide enough to float and admit a boat carrying five tons or more of freight. That part of a slough which lies between Simonds Canal in the town of Alviso and the bay of San Francisco. That certain creek running through the tideland survey numbered 68, and swamp and overflowed land survey numbered 145, from its mouth to the head of the tidewater therein.