Chicago : Engineering and Contracting Pub. Co. · leaf 526
onthe drawing we ought to be able to constructa rule that will give safe results. Referring to the figures, it will be seen thatthe top width of walls varies from 4 ft. to 12ft. 9 ins., the average being about 6 ft., whichis probablv the best width. Some of the walls on rock foundations… … Land Wall River Wall Fig. 7—Section of Chamber Walls, IllinoisRiver, Kampsville Canal. land wall and they are useless on the riverwall. If they are higher than the lower mitersill they will decrease the available width ofthe lock chamber. When on soft foundations, footing on theland wall are…
Buildings
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