Neches River (Sites 1 and 2) 



Location (Neches River Basin) - These sites are located in the National 

 Big Thicket Preserve, Jack Gore Baygall unit, 6.4 km north of Evadale in 

 Jasper County, Texas. Reference U.S. Geological Survey (USGS) map, 

 Silsbee, Texas, N3015-W9400/15 , 1955. 



Hydrology data - Twenty years of hydrology data were obtained for a 

 staff gauge on U.S. Highway 96 bridge at Evadale. Slope correction from 

 gauge datum to study site was determined by using a water surface 

 profile . 



General vegetation - Plant communities range from Taxodium distichum- 

 Nyssa aquatica in deep sloughs to Quercus alba-Pinus taeda and Fagus 

 grandifolia on the nearby ridges. Intermediate communities consist of 

 Quercus lyrata , Carya aquatica , Quercus michauxii , Liquidambar styraci- 

 flua, Ulmus americana , and Carpinus carol iniana. 



Soils and climate - Soils vary from the very poorly drained Angelina 

 series in sloughs to the moderately well drained Spruger series on 

 ridges. Other soil series encountered were Bleakwood, Urbo , and 

 Attoyac . Average annual rainfall in the area is 170 cm, and the average 

 growing season is 234 days. 



Delineated zones - Zones 2, 3, 4, and 6 were delineated for both sites. 

 Zone 5 was too narrow to reliably delineate due to its position on the 

 slope of the floodplain terrace. 



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