Sumida River Tunnel
HEIGHT: 7.8 m
WIDTH: 10.30 m
TOTAL IMMERSED LENGTH: 201.5 m
ENVIRONMENTAL CONDITIONS: The freeboard of the steel shell was decreased to pass under the five low level bridges over the Sumida River during towing.
FABRICATION METHOD: Steel shell was fabricated at shipyard.
WIDTH: 10.30 m
TOTAL IMMERSED LENGTH: 201.5 m
ENVIRONMENTAL CONDITIONS: The freeboard of the steel shell was decreased to pass under the five low level bridges over the Sumida River during towing.
FABRICATION METHOD: Steel shell was fabricated at shipyard.
Tokyo,
Japan
Tokyo Metropolitan Government
Shiraishi Corporation
2 x 67.0 m 1 x 67.5 m
201.5m
Project construction
1976-04-30
3
Two tubes; one track each
7.8m
10.30m
Steel shell was fabricated at the shipyard in the Nagoya Port, 360 Km southwest of
tunnel site and towed open sea for 38 hours.
tunnel site and towed open sea for 38 hours.
Steel shell was fabricated at
shipyard.
shipyard.
At jetty near the tunnel site.
The freeboard of the steel shell was decreased to pass under the five low level bridges
over the Sumida River during towing.
over the Sumida River during towing.
Placed by catamaran barge.
Single rubber gasket and closure plate.
Continuous steel shell.
Concrete was pumped from inside the element and then mortar was grouted to fill the
gap.
gap.
1.5 m of gravel