Public works . nstthe outer face of a frame madeof two horizontal wales, 5j/4feet apart and separated by 5-inch vertical struts riveted tothem. The top and bottomwales weie each made with apair of 8-inch horizontal webchannels 3 inches apart, backto back, providing clearancefor a one-inch horizontal tierod which passed betweenthem and engaged the crib timbers. The lower wale was supported on the topof a row of round piles about 9 feet apart on sheet piles took bearing against the outer facesof the wales and at the ends of the line the lowerends of five-pile units were bevelled to f
Public works . nstthe outer face of a frame madeof two horizontal wales, 5j/4feet apart and separated by 5-inch vertical struts riveted tothem. The top and bottomwales weie each made with apair of 8-inch horizontal webchannels 3 inches apart, backto back, providing clearancefor a one-inch horizontal tierod which passed betweenthem and engaged the crib timbers. The lower wale was supported on the topof a row of round piles about 9 feet apart on sheet piles took bearing against the outer facesof the wales and at the ends of the line the lowerends of five-pile units were bevelled to fit the batterof the pier masonry. The space between the sheetpiles and pier was filled with concrete bags placed bya diver, thus sealing the coiTerdam formed aroundthe crib by the sheet piles. The surface of the rip rap enclosing the coflfer-dam was levelled and concrete was deposited on it andcarried up to water level, filliiig the space betweenthe sheet piles and the timber crib and enclosing the i -I ?V\tR. \WK^^?\t?, o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
