Spatial and temporal effects of the Rincon Bayou Pipeline on hypersaline conditions in the Lower Nueces Delta, Texas, USA

Erin M. Hill, Jace W. Tunnell, Brien A Nicolau


The Rincon Bayou Pipeline became operational in 2007 and delivers Nueces River water to the Nueces Delta via the Rincon Bayou. Salinity was monitored during 3 pumping events to identify the spatial and temporal effects of the pumped freshwater to the Rincon Bayou Channel and to areas outside of the channel proper. The spatial extent of the pumped freshwater lowered salinity beyond the Rincon Bayou Channel to connecting marsh areas and salinities remained below hypersaline levels 8 to 16 days after pumping ceased. The results of this new and innovative way of delivering freshwater to the Nueces Delta has proved to be a valuable management tool for minimizing the duration of hypersaline conditions within the estuary. Water resource management decision-makers can use this information for developing strategies to optimize freshwater inflow needs to the estuary while balancing the freshwater demands for humans.


freshwater management, freshwater inflow, hypersalinity, estuary

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Texas Water Journal

The Texas Water Journal is an online, peer-reviewed journal devoted to the timely consideration of Texas water resources management, research, and policy issues from a multidisciplinary perspective that integrates science, engineering, law, planning, and other disciplines. It also provides updates on key state legislation and policy changes by Texas administrative agencies. The journal is published by the Texas Water Journal, a nonprofit organization, in cooperation with the Texas Water Resources Institute, part of Texas A&M AgriLife.

ISSN 2160-5319
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