Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,459 pages of information and 233,880 images on early companies, their products and the people who designed and built them.

Pont au Double

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1. 2019
4. Fine foundry work
7. Copper-clad cast iron arch rib
8. One of the outer cast iron arch ribs
11. Several cracks visible in the thin ligaments of the spandrels
14. Indicating how the brick brick arches are supported by the ironwork

in Paris

A cast iron arch bridge crossing the River Seine between the Ile de la Cité and the Quai de Montebello. The next bridge upstream is the Pont de l'Archevêché, and the next downstream is Petit Pont.

The present bridge was constructed between 1881 & 1883.

See Wikipedia entry.

The engineers were Henri-Prosper Bernard and Jules Lax.

The iron castings were produced by J. Levêque & Cie of Herstal, Liège, Belgium.

On cast iron arch bridges, the normally-utilitarian outer arch was often made to appeal to 19th century tastes by bolting-on decorative panels. In this case the shape of the structural outer arch itself shows architectural influence (see photos 6, 8, 9).

Remarkably, the outer faces of the structure are clad with copper. The balustrades were electrolytically coated using a process developed by M. Oudry. [1]. Presumably this was the process patented by Charles Francois Leopold Oudry.

See Also


Sources of Information

  1. [1] Une fleur de Paris blog: L'île de la Cité : Pont au Double