ed The plan in question removes these difficulties en- tirely. The designer writes us as follows :— sure preponderance of downward force. the piles at those points serving as piers, so wheels to project under the foot-ways on each “T propose, at intervals of say 600 feet, to The supports or massive… … and secure bearing in the seats.” California Coal. ment which might oceur afterwards. that it would be, in fact, a perfect tubular Mr. Holcomb’s design provides for braces The Sacramento Union at last announces buoyancy of the tube is the same, whatever bridge, with the advantage that the weight of…
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