33rd STREET RAILWAY BRIDGE

PITTSBURGH, PENNSYLVANIA

IMAGE NUMBER 665

The 33rd Street Railway bridge across the Allegheny River in Pittsburgh was constructed in 1921 in the age of steel and is now disused. The bridge is accessed down 33rd street by an elevated trestle, constructed in 1883, with 37 spans above 33rd street.   Interestingly, Uber's Pittsburgh technology centre is located on the Allegheny River adjacent to the trestles - Uber's driverless cars circulate beneath the trestles to and from the Uber facililty.  While taking these images, security staff from Uber insisted (unsucessfully) that Atticus should delete his images.

TECHNICAL NOTES

The image was taken with a tripod-mounted Phase One 645 Camera at ISO 35. Exposure of 1/8th of a second and an aperture of f22.  45 mm Phase One wide angle lens with focal plane shutter.   The image was captured on a Phase One IQ180 80 megapixel digital back.  The image has been cropped and straightened using Capture One.