of the current has pre- neither of which was observable in this case. divers went down and brought up samples of the bot- vented any thorough examination of the river bottom, It is probable that the failure of the pier was due to tom, which is reported to consist of clay hardpan over- it is… … CORNWALL BRIDGE, SHOWING GAP MADE BY THE FALL OF TWO SPANS point to the probability of the swift current having that the bottom was satisfactory, and the filling of the the first place, the method of building up a heavy pier crib commenced forthwith. Bags of concrete were laid undermined the first…
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