The Civil Engineer and Architect's Journal Volume 24 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1861 edition. Excerpt: ... feet curved road from Wellington-street, descending at a gradient of 1 in 50. From this junction the road is continued of its full width of 100 feet, at a level of 14J feet above Trinity high-water, in front of the Temple-gardens. It was originally intended to carry the roadway over Blackfriars-bridge, with ascending and descending gradients on either side, but the passing of the Chatham and Dover Railway Bill has rendered this impracticable while the present bridge stands, and it is now suggested that if the embankment be still extended to Queenhithe, to pass it--the roadway--under the bridge, with a descending gradient of 1 in 50, leaving a headway of 18 feet under the bridge, a level approach 40 feet wide being extended to Chatham-place. On the east side of the bridge, the main road of the full width ascends at the same gradient to a level of 17j feet above Trinity high-water, and continues level thence to Queenhithe. At this place a 40 feet branch roadway would descend at a rate of 1 in 50 to form a junction with Thames-street, and a 60 feet main road would ascend at the same gradient to pass over Thames-street, and continue on a level or nearly so to Cannon-street and thence to the Bank. The levels of the roadway generally are so designed as to admit of approaches at easy gradients to any of the streets now leading from the Strand, aud other main thoroughfares to the Thames. Where the roadway is elevated above the level of the embaukment-wall it is designed to be carried on brick arches and iron girders, supported by iron cylinders resting on the gravel below the river bed. The appearance presented towards the river is that of a series of elliptical arches springing from octagonal piers, the whole being of cast-iron and highly...