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Steel is one of the most common elements used here in the U.S. and all over the globe to build many types and sizes of bridges, including:
Many of the great landmark bridges are constructed of steel. Still, it's important to note that steel bridges aren't just attractive, they're generally stronger, safer, faster to build, require less maintenance, and are more flexible, which makes them perfect for earthquake-prone and high-wind sites. Steel is also used to protect elements on bridges, including utility infrastructure.
In addition to all this, environmentalists are more likely to support the construction of steel bridges compared to other types because they're generally more sustainable and earth-friendly.
The key benefits steel offers bridge developers
| Economic benefits | Environmental benefits | Benefits to society |
| Lower construction costs compared with other materials helps save money for municipal governments.
Faster construction reduces traffic and business disruption. Steel bridges last longer than other types, which means they don't have to be replaced as quickly. Steel components require less maintenance and don't need to be replaced as often. The lighter weight of steel means smaller, less costly equipment - including lifts - can be used on construction sites. |
The ability to recycle and reuse steel bridge components reduces environmental impact.
Steel produced in controlled manufacturing environments limits waste. Steel is highly adaptable to different climates and geographic conditions. The relative lightness of steel compared with other materials reduces energy use during delivery and construction. Steel allows longer spans to be built, which limits impact on habitats below. |
Steel bridges are generally safer to build and less likely to fail.
Steel structures can be visually lighter and more attractive than other bridge types. In certain conditions, a bridge made of steel is the only option to connect two areas. Steel components are less likely to be damaged during extreme events like hurricanes and earthquakes. Steel components are used to transmit critical utility services across bridges. |
Steel can carry loads in tension, compression, and shear. That makes it the perfect material to use in many types of bridges.
Beam bridges
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