Rincon Bayou is in the Nueces River delta, and located northwest of Corpus Christi.

The Rincon Bayou is subject to freshwater inundation following seasonal rainfall events farther inland along the Nueces River.

In 1984, though, the United States Bureau of Reclamation built a dam along the Frio River to create Choke Canyon Reservoir, which has consequently caused a decrease in freshwater flow into the Rincon Bayou.

As part of an effort for the Rincon Bayou–Nueces Marsh Wetlands Restoration and Enhancement Project, the Bureau of Reclamation has created a channel between the Nueces River and the Rincon Bayou.

A second channel was cut within the bayou in an effort to increase the freshwater flow to an area dominated by sand and mud flats.