Rachel Carson Bridge, Pittsburgh, Pennsylvania, 2019
Joel B. Levinson is credited with photograph on this week’s postcard showing the Rachel Carson or 9th Street Bridge in Pittsburgh, Pennsylvania and city skyline at night. The card is a Gold Star Products, Inc., issue and has an identifying number, GSP-394 at the lower left on the reverse.
The bridge spans the Allegheny River and was constructed in 1927. It is one of three bridges often called the Three Sisters. The other two are the Roberto Clemente Bridge and the Andy Warhol Bridge. They are the only trio of nearly identical self-anchored suspension bridges built in the United States. The total length of the 9th Street bridge is 840 ft or 260 m including the 410 ft or 120 m main span and two side spans. The total width of the bridge deck is 62 ft or 19 m which includes two 10 ft or 3 m sidewalks and a 38 ft or 12 m roadway. Formerly the roadway had two streetcar tracks and two vehicle lanes, now it has four wide vehicle lanes. The bridge is named after the naturalist Rachel Carson, who was a Pittsburgh native. This bridge was closed in February 2019 for a rehabilitation project and is expected to remain closed to vehicle and pedestrian traffic until June 2020. Traffic is being detoured to the other two sister bridges.
For additional information, see:
https://en.wikipedia.org/wiki/Rachel_Carson_Bridge
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