buried underground is acceptable, provided the pipe isadequately protected and below the frost line.. The sizing and arrangement of underground piping should befixed early to ensure that installation is simultaneous withfoundation work. (Many drains, sewers, and cableways, whichdo not require attention, are run underground below the frostline.). Leave space for draw boxes on cableways, anchors onunderground cooling water pipes, and manholes on sewers.Fire mains should be located between the Derimeter road andthe Dlant.1.2 Guidelines for Laying out the Plant| .2.1 GeneralAll elevations in Tables 1-1 through 1-4 refer to a nominal 100 m.llrc point 100 elevation is taken as the high point of paving in thep;rvcd areas. This should be common throughout the plant. Equipl|r('nt elevations referdng to grade elevations of 100 m are as showntrr 'l'able 1-2.lable 1-l Access Clearancesl'rinrary access roadsr( ir ffying maior equipment)10.5, insidecorner radius\( rr)ndary roads 5.1 4.4 4.5 insidecorner radiusNliror access roads 5.1 3.6\,r(l l)ipingl'l,rll()fm, walkways,I ,, | \sirllcways, working areas,,l.rif woys2.7 1 workingplatformst ll,irrarrcc'fiom face of||r, ln()tc2.1. Manhole centerapprox. I mabove platform'li) suitkrcal rrxlcsll,|| lwir ys