Public works . s is expected to becompleted July 31, 1922 at an estimated cost, ex-clusive of land takings and damages, of approx-imately $4,000,000. FEATURES. borings in the river bed, subsequentlyconfirmed by dredging and pile driving operations,indicated sand or gravel to a depth of 15 to 2i feet,then clay to a depth of 100 feet or more, with a hardstratum 50 feet below low water level. Thesubstructure of the river bridge was thereforedesigned with concrete footings on wooden pilefoundations so proportional and arranged that aftercompletion of the bridge the waterway
Public works . s is expected to becompleted July 31, 1922 at an estimated cost, ex-clusive of land takings and damages, of approx-imately $4,000,000. FEATURES. borings in the river bed, subsequentlyconfirmed by dredging and pile driving operations,indicated sand or gravel to a depth of 15 to 2i feet,then clay to a depth of 100 feet or more, with a hardstratum 50 feet below low water level. Thesubstructure of the river bridge was thereforedesigned with concrete footings on wooden pilefoundations so proportional and arranged that aftercompletion of the bridge the waterway will be ap-proximately the same as before operations werecommenced, and as large as that at any of the otherexisting Springfield bridges. In the architectural treatment an attempt has beenmade to obtain a pleasing outline with littleornamentation. The channel span is flanked byfour towers rising to a height of 84 feet above thesidewalk and having lanterns at the top. The two 365 366 PUBLIC WORKS Vol. 52, No. 20. PART PLAN DIAGRAMS OF SUBSTRUCTURE spans on either side of the channel span are sym-metrical about the channel span, and their shoreends are emphasized by towers 26 feet high abovethe top of the railing. The west end of the bridgeis balanced by the concrete viaduct at the east end ofthe bridge. The piers and the abutments are faced down to apoint below water level with granite about threefeet thick. Artificial stone ornamentation isprovided at the ends of all piers and at the centerof the channel span. The railing on the river spansis of open balustrade type and that on the approachviaduct is solid. The entire cost of the ornamental HALF ELEVATION OF CHAXXEL SPAN AND PIER features, including the eight large and small towers,the cartouches on the channel span and the pierends, is less than two per cent, of the total cost ofthe structure. Sixty lines of ducts with manholes about 300 feetapart are built under the sidewalks and provisionshave been made for gas and wat
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
