Home » News » Ground nstruction mats » good quality temporary trackway 3/4 Inch for civil Engineering. Product Category Temporary trackway plastic ground protection mat 4 x 8. ... ATCE-II ATCE---II Advanced Topics in Civil Engineering 14 Wall Form Design Example From Table 4-3, the section modulus, S, for ¾-in. plywood is: 0.412 in. 3 ...