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Southern portal:
Bridge over Saw Mill Run;
Brick and Cor-Ten (?) metal facade
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Southern portal:
Two views of outbound (southbound) tunnel exit with wind break structures;
Inbound tunnel entrance showing additional lighting for transition from daylight
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Northern portal:
Inbound (northbound) tunnel exit with wind break structures;
Inbound tunnel entrance showing additional lighting for transition from daylight;
Two views of outbound (southbound) tunnel entrance
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Ventilation and mechanical plant, Secane Av on Mt. Washington
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Ventilation and mechanical plant, Secane Av on Mt. Washington;
Ventilation stacks rise above South Hills Junction on Warrington Av
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Historical views of northern portal:
1928;
postcard view;
1950s
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Historical views of southern portal:
1915 view of West Liberty Av toward site of tunnels -- West Side Belt RR trestle
c1934-1938 -- after Prohibition, before West Liberty Av trolley viaduct;
c1950;
1957 Saw Mill Run Blvd interchange proposal
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