Elizabeth River Bridge-Tunnel connecting Norfolk and Portsmouth consists of double bascule drawbridge with 56-ft clearance across Eastern Branch, tunnel under Southern Branch from Berkley to Portsmouth, and expressway between bridge and tunnel; tunnel was fabricated in sections and sunk in prepared trench under river, 3400 ft long, composed of seven 300-ft tube sections with outside diameter of about 35 ft; plazas and expressway.
Dream come true
Traffic Eng
Traffic Engineering ; 22 , n 11
1952
Aufsatz (Zeitschrift)
Englisch
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