![]() ![]() The cost is also similar, the main difference between asphalt and concrete being a stronger skid resistance for vehicle tires. Asphalt has the same pros and cons as concrete.Concrete is fairly expensive and has a high dead load (self weight) which could require a larger truss (more cost), however it is very aesthetic.Wood is generally the cheapest but needs to be replaced about every 15 or so years.They allow for span lengths similar to steel but because only bolted connections are possible (no welding) the truss options are somewhat limited. Composite materials like Fibre Reinforced Polymer (fibreglass) can be used as well. Although wooden trusses can be built, the relative weakness of the connections would limit the bridge spans to somewhere in the range of about 60 ft (20 m). They can be built to any width, and can be designed to accommodate vehicles as well. ![]() They can be built in span ranges from 30 ft (10 m) to about 200 ft (67 m). Pedestrian bridges fall into 3 general categories: In this article, we will attempt to lift the veil and answer as many questions about pedestrian bridges as we can. Google searching tends to bring up specialty manufacturers or suppliers who represent and promote a certain type of product, and it often won’t be immediately obvious what their specialty is without doing some research. And if abutments require engineering design, or environmental permits are required, these are generally not available from a pre-designed bridge manufacturing company. Even then, many people find that the pre-designed options are conservative (usually designed for highway loading) and they could have saved money by going the custom route. There is no standard bridge length, width, and height, although several companies have pre-designed options. And paint type and color is an aesthetic factor as well as longevity concern. ![]() Appurtenances like railings have several options. They can have wood, concrete, or asphalt decks. Pedestrian bridges can be made out of steel, wood, or composite material. Whether you need the simplest possible structure to cross your stream or roadway, or want to provide something your customers or clients will notice, there is a pedestrian bridge out there that’s right for you.īut the options can be dizzying. A bridge is a great way to showcase your facility or business. ![]()
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