Universal Portland Cement Co., C. W. Boynton · Universal Portland Cement Co. · leaf 47
them in fair weather,such walks become impassable when iced over during the winterseason. Wooden walks are then laid over the cement to pro-vide a surer foothold, but this expedient should be unnecessary.Steps should be built if the grade exceeds 20 degrees, but lessergrades are improved by laying… … Figure 24. Change of Grade. The comfort of pedestrians demandsthat the grade in a walk shall not change suddenly except-ing where steps are advisable. It is not unusual to find a breakin continuity of the grade such as is illustrated m Figure 24.Here the higher walk was built last and is connected…
