Tunnels

Large poster showing diagrams of a VC tunnel at the strategic village of Cu Chi, Vietnam.

This is an aerial view of an elevated train track and a tunnel entrance, possibly near Tokyo, Japan.

View of a short tunnel on the Tokai Do Railway Line somewhere in Japan.

Malinta tunnel west entrance on the island of Corregidor, Philippines. The road leading to the tunnel can be seen in the foreground.

View of the first water flowing through the East Portal of the Alva B. Adams Tunnel into the reservoir. Under Secretary of the Interior Oscar Chapman attended the dedication ceremony.

From left to right: Bureau of Reclamation Commissioner Michael Straus; Under Secretary of the Interior Oscar Chapman; Elizabeth (Mrs. Alva B.) Adams; Alva B. Adams, Jr.; and J. M. Dille, Secretary-Manager, Northern Colorado Water Conservancy District have a conversation near the East Portal of the Alva B. Adams Tunnel in Colorado after its dedication ceremony. All others unidentified.

View of the first water coming through the East Portal of the Alva B. Adams Tunnel in Colorado. Under Secretary of the Interior Oscar Chapman attended the dedication ceremony.

View of the crowd gathered around the empty reservoir of the Alva B. Adams Tunnel in Colorado during the dedication ceremony. All people unidentified.

From left to right: Bureau of Reclamation Commissioner Michael Straus; Lee Knous, Governor of Colorado; and Under Secretary of the Interior Oscar Chapman at the dedication of the Alva B. Adams Tunnel in Colorado.

View of the entrance to the Alva B. Adams Tunnel in Colorado. Under Secretary of the Interior Oscar Chapman attended the dedication of the tunnel.