The Strength of Steel in Bridges

Steel’s inherent strength, light weight, versatility, and high recycled content make
it ideal and the most sustainable choice for bridge projects.

Steel’s high strength-to-weight ratio makes it an ideal choice for long spans.

Offsite steel fabrication enhances project efficiency, reduces construction periods, and lowers costs.

Lighter steel structures attract lower seismic forces.

The CISC Quality Certification program for bridges ensures the highest quality and safety standards for your project

Bridge Gallery

Port Mann Bridge

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The Port Mann Bridge Deconstruction


Pont Deh Cho, North West Territories

Photo: GNWT Department of Transportation

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A30 PPP Pont Canal Beauharnois, Quebec

A30 PPP Pont Canal Beauharnois

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Dawson Bridge Rehabilitation, Alberta

Dawson Bridge Rehabilitation

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Chukuni River Bridge

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Lee's Avenue Bridge

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Craigflower Bridge Replacement

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Pont des Allumettes


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Ensuring that our members and associates are well informed about steel bridge construction is important to the CISC. Areas relating to code compliance, safety, security, innovation and the environment are all key issues.

The CISC is taking a leadership role in developing future bridge inspection programs. This is in effort to optimize decision making for replacement, restoration and maintenance issues relating to bridges. In excess of 40% of the bridges currently in use in Canada were built over 50 years ago and a significant number of these structures need reinforcement, rehabilitation, or replacement. 

The chart shows the average age of bridges by Authority. Reference

Steel has high tensile and compressive strength, easily meeting structural requirements and the installation of steel bridges is more versatile and efficient. It offers cost savings in using skilled labour, as steel is produced in the workshop. Transportation, demolition and facility in conducting repairs are also strong advantages to steel bridge construction.

The high quality of steel for bridge construction and innovative construction methods, have made the production, fabrication, delivery and installation of long span steel bridges a preferred option, resulting in a uniform level of performance. Steel offers great advantages over other construction materials, due to its capacity to better withstand stress and fatigue, and its higher seismic resistance.

Steel bridges also offer economic advantages, are extremely durable and are adaptable to different locations. They are also resistance to climate change, since steel is produced under tightly controlled mill conditions and is homogeneous and predictable in behavior.

Articles of Interest

Innovation in Bridge Design

A Gusset-less Bridge

Nanotechnology in Canada