Photo showing the first girder of the last one hundred foot span being put into place by a Hamilton Bridge Derrick car. Each one hundred foot steel girder weighed 32 tons.
Photo showing the first girder of the last one hundred foot span …
Photograph of a Hamilton Bridge derrick car swinging the first girder of the last one hundred foot span into place. Each hundred foot steel girder weighed thirty two tons.
Photograph of a Hamilton Bridge derrick car swinging the first girder of …
This photograph shows a Hamilton Bridge traveling crane placing a 32 ton steel girder into place on the trestle. Newspaper reports indicated the trestle itself would be a mile long, followed by a mil
This photograph shows a Hamilton Bridge traveling crane placing a 32 ton …