Engineering and Contracting . Fig. 7. Finished Subgrade Showing Superelevation on a300-ft. Radius Curve, California State Highway. Fig. 8. Distribution of Material for Mixer Gang, CaliforniaState Highway. fresnoes to handle readily. The difference-in hardness of the macadam will not affectthe output of the steam roller, because theroller has a fixed rate of speed, and canaccomplish only the fixed amount of root-ing, whether in a soft or hard material. KOUGH .Vfter breaking up the old road surface, itwas rough-graded (I-ig. 3) to within the required grade when rolled for the
Engineering and Contracting . Fig. 7. Finished Subgrade Showing Superelevation on a300-ft. Radius Curve, California State Highway. Fig. 8. Distribution of Material for Mixer Gang, CaliforniaState Highway. fresnoes to handle readily. The difference-in hardness of the macadam will not affectthe output of the steam roller, because theroller has a fixed rate of speed, and canaccomplish only the fixed amount of root-ing, whether in a soft or hard material. KOUGH .Vfter breaking up the old road surface, itwas rough-graded (I-ig. 3) to within the required grade when rolled for thewhole width of the road, including the shoul-ders. If the shoulders are graded at thistime the material is handled with fewer teamsthan if the grading is done after the con-crete is laid. Also the constant compactingof the by work teams during theconcreting puts them in better shape, and en-sures a more uniform appearance. At thispoint the use of the construction stakes de-scribed under Surveying came in. The const
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicago, bookyear19
