Front:
THIMBLE SHOAL
CHANNEL TUNNEL
OBSÉRVE
OVERHEAD
TRAFFIC
SIGNALS
669
Back:
P64399 (N-106)
CHESAPEAKE BAY BRIDGE-TUNNEL
NORFOLK, VA.
Entrance to Thimble Shoal Tunnel
The C.B.B.T. has four basic components: 12 miles
of low level concrete trestle, two one-mile
tunnels, two steel bridges, and four man-made
Islands, providing entrance and exits for the short
tunnels.
Bender Enterprises, P. O. Box 5218, Virginia Beach, Va.
by COLOURPICTURE PUBLISHERS, INC., Boston 30, Moss., U.S.A.
