includes a 650-foot-long overflow barrier; five forty-five foot wide tainter gates; and a fifty-six foot wide navigation lane regulated by two thirty-foot sector gates. It also allows the conservation of 200,000 acre-feet per year of freshwater upstream in Sam Rayburn Reservoir. The salt water barrier project also provides recreational opportunities. Public launching ramps are located on the Jefferson County side of the barrier. The area has a walking trail and playground. The state of Texas created its sixty-first (61st) canoe paddling trail in 2014, with the trail head at the salt water barrier. It progresses north into waters included in the Big Thicket National Preserve. References External references "Lower Neches Valley Authority", Texas History Online Current Conditions: "LNVA Saltwater Barrier", USGS Government of Texas Canals in Texas Irrigation canals River authorities of Texas