Question: What value of chloride permeability should I specify for a bridge deck? Answer: Chloride permeability or, more appropriately, chloride penetrability is being widely specified to ensure longevity in our transportation structures. There has been considerable debate regarding appropriate applications
STURGEON RIVER BRIDGE: 100-YEAR SERVICE LIFE
Dale Serink, UMA Engineering Ltd. Located near Edmonton, Alberta, the Sturgeon River bridge incorporates innovative features aimed at achieving a 100-year service life and meeting difficult geometric constraints. Integral abutment design, stainless steel-clad reinforcement, and high performance concrete were employed
HPC PRETENSIONED GIRDERS FOR THE METHOW RIVER BRIDGE
Stephen J. Seguirant, Concrete Technology Corporation The Methow River Bridge, currently under construction in Okanogan County, Washington, is a replacement for a seven-span, cast-in-place concrete Tbeam bridge that had become functionally obsolete. The new bridge consists of two 180.5-ft (55.0-m)
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HPC ON THE OHIO TURNPIKE
William R. Fleischman, Ohio Turnpike Commission In conjunction with the Third Lane Widening program, the Ohio Turnpike Commission is reconstructing the twin, high-level bridges over the Cuyahoga River Valley in Summit County, near Akron, Ohio. The new 18-span structures are
HPC ACCOMPLISHMENTS UNDER TEA-21—WHAT’S NEXT?
Louis N. Triandafilou, Federal Highway Administration Many articles in previous issues of HPC Bridge Views have described projects that have been designed and constructed as a result of legislation responsible for implementing longerlasting, cost-effective bridges nationwide. Industry and FHWA have