The Structural Engineer > Archive > Volume 12 (1934) > Issues > Issue 1 > Bridge Foundations-Part II. A Survey of the Attendant Problems in Design (Continued)
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Bridge Foundations-Part II. A Survey of the Attendant Problems in Design (Continued)

If the banks of a ravine appear to be solid and careful investigation has revealed no indication of slipping at any point above, below, or near the proposed location of the bridge the rock bed which is to sustain the thrust from the structure must be drilled and carefully examined its to its nature, strength and depth. If the results are satisfactory the designer can proceed with details to determine the type of structure which should be selected only after a minute analysis of the data obtained. H.E. Brooke-Bradley