Southern portal:
Bridge over Saw Mill Run;
Brick and Cor-Ten (?) metal facade
Southern portal:
Two views of outbound (southbound) tunnel exit with wind break structures;
Inbound tunnel entrance showing additional lighting for transition from daylight
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
Ventilation and mechanical plant, Secane Av on Mt. Washington
Ventilation and mechanical plant, Secane Av on Mt. Washington;
Ventilation stacks rise above South Hills Junction on Warrington Av
Historical views of northern portal:
1928;
postcard view;
1950s
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
