The Municipal Engineers of the City of New York: Proceedings for 1906 (Classic Reprint) - Hardcover

Max L. Blum

9780331632194: The Municipal Engineers of the City of New York: Proceedings for 1906 (Classic Reprint)

Hardcover

ISBN 10: 0331632195 ISBN 13: 9780331632194

Publisher: Forgotten Books, 2020

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Excerpt from The Municipal Engineers of the City of New York: Proceedings for 1906

The New York Division of the New York, New Haven Hart ford Railroad has been for a number of years a four-track line, the first section of which was built back in the 80's and continued down to the present time. Of the more important bridges, only the one over the Norwalk River 'and the one over the Pequonnock River were four-tracked, when in 1903 it was decided to rebuild the bridges over the Mianus, Saugatuck, and Housatonic Rivers on which a double-track service was still maintained, thus complet ing the last links necessary for a four-track system from New York to New Haven.

It is not the purpose of this paper to dwell on the Mianus and the Saugatuck River bridges, other than to allude to the fact that at these latter places temporary structures were built, about 100 ft. North of the main line, to take care of the whole trafic while the old bridges were being taken down and the new ones rebuilt. These are timber trestles of pile and framed bent construction, averaging 35 ft. In height, braced and bolted. Temporary drawbridges of the jack-knife pattern provide for the river traffic.
Assistant Engineer. New York, New Haven and Hartford Railroad Co.

At the Housatonic River, however, this was not done. At the site of the bridge the water is about 35 ft. In depth, with a difier ence of 6 ft. Between high and low water. There is a tidal current up stream, and a down-stream current of about six miles per hour maximum. In the winter the ice becomes very threatening; dur ing the winter of 1903-1904 it was piled at the west bank some 40 ft. High. N or was it unusual during a severe winter for the water to freeze so hard about the old fender piles at low tide as to pull them out as the tide rose. These and other considerations led to the decision to proceed at once with the new piers under the old bridge, thus avoiding a temporary structure and the disturbance of traffic.

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