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Photos 4986 - 4990 of 7137
stlouis missouri us usa architecture bridge mississippi Eads Laclede bh 2008

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The center and main arch - Eads Bridge at LaClede's Landing
the top level is for vehicular traffic the lower for passenger tains:

Both the construction and design of Eads Bridge set precedents in bridge building. It was the world´s first alloy steel bridge; the first to use tubular cord members; and the first to depend entirely upon the use of the cantilever in the building of the superstructure .

Pneumatic caissons were used for the first time in the United States in the construction of the piers, which were sunk to unprecedented depths (96 ft. below mean water level and 122.5 ft. below the City Directrix).

Eads also invented the sand pump to remove gravel, sand and silt from the caissons so that the sinking operation could work without interruption.

Finally, it was the first large bridge to span the Mississippi River, and it was the first to carry railroad tracks.

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(constructive critique is welcome)



Coming up:
Small selection of downtown St Louis monuments and landmarks
a small car show
St Louis Air Show - from high up in the hills above the air field: http://www.stlcofair.org/
A tour of the St Louis Botanical Gardens
experiments with lights
experiments with splashes
2008 St Louis Orchid show
Snow sledders having fun
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Comments on this photo:

May 12 2008 17:01 GMT garynumber1cleaner
great angle .. like this ;-)
May 12 2008 17:06 GMT senna3
Fantastic shot!
May 12 2008 17:24 GMT SIGMUND
wonderful shot, very nice perspective!!
May 12 2008 17:50 GMT Lensvision
Beautiful old bridge.
May 13 2008 02:54 GMT hans55 PRO
very good series !!!

FT2