Bay City Low Water Dam Portage Site provides access to the Colorado River for paddlers navigating the lower section toward Matagorda Bay, located approximately 1 mile downstream of the Intracoastal Waterway.

The portage allows paddlers to bypass the dam and access the final 6 miles of the Colorado River, the Intracoastal Waterway, and portions of Matagorda Bay, with river access available on the downstream right side.