Construction Statistics and Comparisons

ITEM ORIGINAL SPAN SECOND SPAN
Type of Bridge Cantilever Truss Continuous Tied Arch
Total length of bridge (excluding plazas) 6,178'  (1,883m) 6,109' (1,862m)
Number of Spans 72 39
Main Span Length 871' (266m) 922' (281m)
Truss/Arch Span Length 1,576' (480m) 1,480' (451m)
Deck Width 38' (12m) 51' (15.6m)
Lanes/Width 3 @ 10' 8" each 3 @ 12' 0" each
Total Weight of Main Span 28,340 tons 20,084 tons
Total Weight of American Approach 9,940 tons 30,591 tons
Total Weight of Canadian Approach 11,050 tons 33,353 tons
Total Weight of Steel & Concrete 86,905 tons 84,028 tons
Rivets 2,228,000 (500 tons) None
Bolts None 350,000
Steel Foundation Piling None 31 miles (50,302m)
Clearance Above River 152' 155'
Top of Steel Above River 210' 233'
Main Pier Construction Each main pier contains 10,000 tons of concrete & reinforcing steel resting on rock Each main pier sits on 144 H-piling driven 105' to bedrock
Construction Commencement June 24, 1937 June 15, 1995
Main Span Steel Joined May 24, 1938 November 6, 1996
Open to Traffic October 10, 1938 July 22, 1997
Cost of Construction $3,250,000. U.S. funds $79,269,755. U.S. funds
Total Cost (Construction, Ferries, Engineering, Right of Way, Environmental Activities, etc.) $3,900,000. U.S. funds $107,488,651. U.S. funds
Tolls $0.60/car & driver
$0.10/passenger/pedestrian
$1.25/car
$1.50/axle/truck
Accessibility Image