Notes:11th Street

From Pittsburgh Streets

To do

Something about the aqueduct, the second of which (the Allegheny Aqueduct) was built by John A. Roebling.
Something about the Pennsylvania Canal Tunnel.
Source:Ilisevich-burkett
Source:Mulkearn-pugh@47–48

Pennsylvania Canal: Source:Gardner, pp. 118–135.

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To do