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<br />C~ <br />• <br />1. Hole is hand duy 17 to 'l4 inches <br />deep. ' <br />2. Dirt and loose rnck is cleaned <br />away from bottom of hole. <br />3. Hur.k bolts driven to refu~.al <br />with 12-1b sledge. Minimum ut <br />17 inches driven into ground. <br />4. Ground treated with r.uncrete <br />patr.hiny compound to insure <br />adhesion between yrowrd and <br />conr:rete pylon. <br />5. Stand pipe backfilled with <br />mortar. - <br />6. Trivet plate is screwed on t.o <br />the stand pipe with 36-in pipr~ <br />wrenches. <br />TkIVCf PI ATF: f; in by Y, in by U.%h in <br />sUx~l nldt.e drilled Lu mat.e with <br />Wild GI'I -1 t.rivet.••. <br />COUPLING: 2-in us~diwu Lhic:kne•r,. <br />Spot. weeded to trivet {elate. <br />STAND I'll'C: Schr'dule 80 •~teel, 7-in <br />inside diameter, 6-tt. ienyt.h. <br />)NCIfI:TL: 17-in c,ylindcr poured <br />around stand pipe and rock~• bult.•.. <br />3.5 Lu 4.5 ft. high. <br />I;OCI: BOLTS: 0.5-in diameter, 4-tl. t.r. <br />6-ft. lengths. <br />IIOLf: 17-in to 74-in dianieti•r. <br />1'1 in to 74 inr he•• deep. <br />FIGURE 4.8.7.6.4 - 3 MONUMENT CONSTRUCTION, <br />SURVEY CONTROL MONUMENT <br />