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,K-=EU 7 <br /> IETZGEN CO. <br /> 8. _ <br /> DRAW LS. MATHEMATICAL and <br /> Z'sos S 2 b z <br /> SURVEYING INSTRUMENTS 3s L,' --- <br /> a San Francisco New Orleans Pittsburg Toronto -s a o c _'T <br /> Nitinces4n Center of Roadway for Cross-Sectioning ?s- s R1 <br /> Roadway 16 feet wide. Side Slopes 1 o1 1. P cG E <br /> For Single Track Embankment. 17 <br /> .2 .8' I .4 I .5 .0 1 .7 I .8 e H <br /> 0 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 0 <br /> y1 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 <br /> q2 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 2 <br /> 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 3 <br /> 4 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 4 <br /> 5 13.0 13.1 33.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 5 J <br /> 6 14.0 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 6 <br /> 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 7 �� �� x <br /> 16.9 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 8r _X- <br /> 17{1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 9 2: L 7,.3 3 3.1` <br /> 0 1 8.1` •18:2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 10 -f-29,6 "'A <br /> 1 19.0 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 19.9 11 ��`�el � 16 <br /> � �(� 3�ic6 a i <br /> �?l7. ---.sem/D r <br /> 12 20.0 20.1 20.2 20.3 20.4 .11`0.5 20.6 20.7 20.8 20.9 12 7ze-_ d<f <br /> 13 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21:7 21.8 21.9 13 - - - <br /> 22.0 22.1 22.2 22.3 22.4 22.5 22.6 22.7 22.8 22.9 14 .. 2'�� <br /> 5 23.0 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 15 <br /> 24.0 24.1 24.2 24.3 24.4 24.5 24.6 24.7 24.8 24.9 16 <br /> M�7 25.0 25.1 25.2 25.3 25.4 25.5 25.6 25.7 25.8 25.9 17 <br /> 18 26.0 26.1 26.2 26.3 26.4 26.5 26.6 26.7 26.8 26.9 18 S z 8 <br /> k'19 27.0 27.1 27.2 27.3 27.4 27.5 27.6 27.7 27.8 27.9 19 2 <br /> ' 20 28.0 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 28.9 20 ' `J- r `; <y <br /> r <br /> 21 29.0 29.1 29.2 29.3 29.4 29.5 29.6 29.7 29.8 29.9 21 <br /> 22 30 <br /> C 25 .0 30.1 30.2 30.3 30.4 30.5 30.6 30.7. 30.8 30.9 22 w <br /> " 31.0 31.1 31.2 31.3 31.4 31.5 31.6 31.7 31.8 31.9 23 1 i3e ;�'" • <br /> ° / L Z <br /> ` 32.0 32.1 32.2 32.3 32.4 32.5 32.6 3232.132.8 32,9 24 <br /> r- 33.0 33.1 33.2 33.3 33.4 33.5 33.6 33.E 33.8 33.9 25� w '- <br /> s% 26 34.0 34.1 34.2 34.3 34.4 34.5 34.6 34.7 34.8 34.9 26 z� <br /> 27 35.0 35.1 35.2 35.3 35.4 35.5 35.6 35.7 35.8 35.9 27 <br /> j, 28 36.0 36.1 36.2 36.3 36.4 36.5 36.6 36.7 36.8 36.9 28 j 'G <br /> 29 37.0 37.1 37.2 37.3 37.4 37.5 37.6 37.7 37.8 37.9 29 Z ?� ° Z 1 + <br /> 30 38.0 38.1 38.2 38.3 38.4 38,5 38.6 38.7 38.8 38.9 30 G` 2 I <br /> �i 31 39.0' 39.1 39.2 39.3 39.4 39.5 39.6 39.7 39.8 39.9 31 3 <br /> 32 40.0 40,1 40.2 40.3 40.4 40.5 40.6 40.7 40.8 40.9 32 <br /> 33 41.0 41.1 .41.2 41.3 41.4 41.5 41.6 41.7 41.8 41.9 33 Z 4 <br /> 34 42.0 42.1 42.2 42.3 42.4 42.5 42.6 42.7 42,8 42.9 34 <br /> 36 44.0 44.1 44.2 44.3 44.4 44.5 44.6 44.7 44.8 44.9 36 �Z <br /> 37 45.0 45.1 45.? 45.3 45.4 45.5 45.6 45.7 45.8 45.9 37 h <br /> 38 46.0 46.1 46:2 46.3 46.4 46.5 46.6 46.7 46.8 "46.9 38 <br /> 39 47.0 47.1 47.2 4,7.3 47.4 47.5 47.6 47.7 47.8 47.9 39 y <br /> 40 48.0 48.1 48.2 48.3 1 48.4 1 48.5 148.6 148.7 48.8 48.9 40 4 �! <br /> Example-If point is 22.6 ft.above grade,how far should it be from center line i <br /> to be a slope stake point? Ana.from Table 30.6. For same slopes but other widths (/ <br /> of roadbed,correct above figures by one-half difference in width of roadbed;thus in <br /> example above,for 20 ft.roadbed distance will be 30.6-}-(20-16)+2 or 2 ft.added to <br /> 30.6=32.6. For slopes of 1 on 1 see inside back�,cover. <br /> Copyright,1914,by Dietzaen Co. , <br /> 04 <br />