INTER-CONTINENTAL PEACE BRIDGE.

Inter-Continental Peace Bridge, Inc. has commissioned T. Y. Lin International to make a conceptual study of this bridge and to obtain an order-of-magnitude cost. The current results of this study are summarized here. To bridge the Bering Strait a typical span length should optimally be 1200 ft. (366 m). For navigational purposes, an 1800-ft. (549-m) main span with a vertical clearance of 200 ft. (61 m) should be provided in each channel, both east and west of the Diomedes Islands. The bridge would consist of 220 spans, 12,100 ft. (366 m) in length. A single-stayed cable scheme is most economical, because the large box section can span 400 ft. (122 m) between supports with a minimum number of cables, which reduces maintenance costs due to severe weather conditions at the bridge site. After prefabrication, each span will be transported to the bridge site for erection. The cost of the project is 2 billion for the superstructure and 2. 2 billion for the substructure, for a total cost of 4. 2 billion.