1975 Press Photo Tunnel worker prepares pipes for concrete - mjc28487

Tunnels - Above: Workers (top left) prepared a form before concrete was poured for part of the tunnel wall. The concrete is pumped down into the tunnel through pipes. Another worker (bottom left) is shown inside a form that would later have concrete poure

Photo is dated 1975.

Photo measures 10 x 7.25 inches.

Photo back: