 A permanent saltwater barrier across the Neches River is located downstream of confluence of Pine Island Bayou and the Neches River within one-half mile of the confluence point.The barrier, constructed between 2000 and 2003, prevents saltwater contamination during periods of low river flows.The permanent saltwater barrier project had a budgeted cost of $50 million with the federal government paying 75% of the cost and the LNVA responsible for the remaining 25%.