Chicago's newest and heaviest bascule: Fid-Bau Portal

Chicago's newest and heaviest bascule

Double leaf trunnion bascule; clearance over river, of 20 ft for width of 103 ft and 16 1/2 ft for 160-ft width, permits free passage of tugs and barges without opening bridge.

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Chicago's newest and heaviest bascule

Abstract

Double leaf trunnion bascule; clearance over river, of 20 ft for width of 103 ft and 16 1/2 ft for 160-ft width, permits free passage of tugs and barges without opening bridge.

Chicago's newest and heaviest bascule

Abstract

Double leaf trunnion bascule; clearance over river, of 20 ft for width of 103 ft and 16 1/2 ft for 160-ft width, permits free passage of tugs and barges without opening bridge.