Title:
Incremental Launch: The Stoney Trail Bridge
Author(s):
James A. Skeet; Calvin T. Mcclary; and W. B. Lester
Publication:
Concrete International
Volume:
20
Issue:
2
Appears on pages(s):
53-57
Keywords:
bridges; environments; incremental launch method; post-tensioning;
segmental construction;
DOI:
Date:
2/1/1998
Abstract:
Stoney Trail Bow River Bridge in Calgary, Alberta, is Canada's first segmental concrete bridge constructed by Incremental Launch Method. The five span structure, with main spans of 102 m (335 ft), is 20.8 m (68.2 ft) wide and will carry four lanes of road traffic. The 476 m (1562 ft) long, two-celled post-tensioned structure was fabricated to match the constant horizontal curved geometry. The construction method reduced impact on a park and environmentally sensitive stand of trees. The opportunity to use this innovative construction technique was made possible by an alternative delivery system which permitted contractor-based design-build proposals.