View south (upstream) from WSB RR/PLE RR bridge
West Carson St over Saw Mill Run;
West End Circle
USGS 7.5" Topo Quad - UTM Coordinates:
Pittsburgh West - Zone 17; 0582 4477
West Carson St [PA837]; piers for elevated lanes of West End Circle; Norfolk Southern Railroad [former PRR]
-- below West End Circle
-- Saw Mill Run
TYPE OF CONSTRUCTION / DESIGN:
Closed spandrel concrete arch (culvert)
LENGTH OF MAIN SPAN:
TOTAL LENGTH (including longest elevated ramp):
HEIGHT OF DECK:
YEAR ERECTED / ENGINEER:
c1915; extended 1931, Allegheny County
from the PennDOT Historic Bridges survey:
The bridge carries a dirt access road and support piers for West Carson Street and the West End Circle over a small stream.
The ca. 1915, reinforced concrete, closed spandrel deck arch bridge once carried a roadway along the Monongahela River [sic, Ohio River]. Ca. 1930 the elevated West Carson Street and the West End Circle were constructed as part of Allegheny County/City of Pittsburgh roadway improvements built in conjunction with its great river crossing bridges. The bridge was used to carry support piers for W. Carson St. Reinforced concrete arch bridges have been used with great frequency since the early 20th century. The bridge is not technologically noteworthy.
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