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_ - <br />All excavalions over 4II" deep are lreated as Type C soil <br />Use lrench box, shoriny or 1 V:1.5H sloping __ -_ --- <br />See Safety prior to entry for jobs requirinc� Typr. A or Type 6 verification __ <br />llnderground utilities must be located. Phologr.�ph locates marks if necessary. __. <br />All s�oils, mrilerials and equipment must be ke�nore than 2(eet from the excavation edges <br />Shielding/Shorinc�_labuleted data musl be kept on sile _.__ ___ <br />Standin or weeping waler in lhe trench must be removed ____ _ <br />A ladder mus! !�e available oul of ihe trench within 25 feet of workers <br />Atmospheric testing must be performed continuously if lhere is: <br />1. Machinery running thal could contaminate the lrench wilh carbon monoxide (CO) <br />2. Underground storage lanks or pipelines lhal may h3ve leaked into lhe surroundiny soil <br />3. Known landfill or dump site lhal could miyrale (lammable or noxious vapors inlo the trench <br />Traffic Control Devices <br />10 (oot lane 11 (ool lane 12 fooi lane _ Sltoulder . <br />--- --- <br />- - -- _ _ <br />� %:L L Y�L L %L 1'JL <br />- - --- - _ - _._ <br />- <br />-_ - - __ <br />- - -- - - - - --- -- - . <br />C9PH Mergc Cone Shift Cone Mcrge Conc Shitt Conc Merge Cane Shi(t Conr Taper Cone <br />- - --... - - � �- -- <br />20 70 (1 5 35 ft J 75 (t Ci 40 il 3 SO (l 5 40 (t 3 25 tt 3 <br />- - - - _ _ <br />- _ <br />- - --- <br />25 105 6 55 3 115 G GO 4 17_.ri 6 h`' 4_ 3�- -3- <br />- <br />- -- - <br />30 150 '� (i 75 4 165 7 85 4 180 7 90 4 50 3 <br />-- - -- --- --- ----- -- - -- - -- <br />-- - -- <br />35 205 _-7 � 105 4 l25 £3 115 5 245 8 17_5 5 70 �-- <br />- . .. _- -- <br />---- - - - --- <br />- -- - -- - - _ <br />40 270 II 135 5 295 9 150 5 320 9 160 5 90 4 <br />-- _ - - _ - -- - <br />-- --- <br />- - - <br />45 �50 11 27_S 6 A95 1't 7;0 7 540 13 270 7 150 6_ <br />__ _ -- <br />50 500 11 250 (i 550 12 275 7 �00 l3 300 7 170 G <br />---. <br />_ __- - _ _ - <br />-- - - - --- -- — <br />55 ' S50 �11 iIS G 60i I2 305 7 fif0 13 330 7 1£l5 fi <br />_ -- <br />g0 � f00 11 3U0 6 (i60 12 330 7 720 13 -360 7 200 _ 6 <br />Downstrcam Taper-100 fcetllane closed _ _ _ __ <br />SIGN SPACING RoaJ Work Ahead Plagger Ahead Prepare to Stop q"' sign <br />36" x 36 " I� 48" x 48" i 36 " z 36 " <br />__ � � <br />_ �- --- - -- - -- <br />� � 100 ft ---I 100 (L NIA <br />25 m �l� ar lc�s �00 (I. _--I _ _ - -- . _.. __ <br />_ _ - -__- <br />--- - --- � <br />---- -._._ _ _ <br />30 mph I 200 ft f 200 ft ( 200 (t NIA <br />, _- _ -- ___ _._ <br />_ - _r <br />I - - --- <br />35 40 mpli j 3S0 fl. i 350 ft 350 fl N/� <br />-- _ ---- -- <br />� _ _ <br />r r � -- --- <br />I `_ � 500 Il 500 (L _ 500 f� <br />- , - _ __ _ __ _ <br />4.� �5 m h 500 fl , <br />i:_ - so �5 „�,n �.00a n. i oao ri. , �,000 n. i,oao n <br />, <br />�? � <br />�� <br />ie�����,on cnro�� 1 � <br />