Pennsylvania Roads - Three Sisters Bridges
"Three Sisters" Bridges, Pittsburgh
6th, 7th, and 9th Streets
The 6th St. Bridge northbound from Fort Duquesne Blvd. The new home of the Pirates, PNC Park (unlike Three Rivers Stadium, the name could change), is on the left.
The 7th St. Bridge southbound, looking east at the 9th St. Bridge and west at the 6th St. and Fort Duquesne Bridges. All of the bridges look basically the same, as they were all built between 1924 and 1928 and all use steel eyebars instead of suspension cables. Also, they are all self-anchored, meaning the "cables" tie into the bridge structure - you will see that at the end of the 9th St. Bridge photos.
The 9th St. Bridge northbound from Fort Duquesne Blvd., of course also a historic landmark, and looking west at the 7th and 6th St. Bridges. Here you can see the detail of the eyebar linkages to each other and the vertical cables that hold up the bridge.
More Allegheny River bridges
Fort Duquesne Blvd. on the south side of the river
See the Three Sisters bridges and Pittsburgh from Mt. Washington
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