A large proportion of our work is to special customer requirements, such as this 1:8 scale steel display bridge - a favourite project.
The most economical approach to a custom design is to base it on standard parts. Contact us to discuss your ideas and requirements. A request for something you don't see in the illustrations will sometimes lead to a new product that will be of general interest. The picture below shows the first of many 'specials'; this one for a large 0n30 railway, using mostly modified standard parts.
Masonry viaducts appearing to be curved are common, but there was rarely a horizontally curved steel bridge until the development of modern welded box girders. Most bridges that appear to be curved are a series of straight sections, and this is how we build a curved bridge. For a sharply curved bridge, the girders will be trapezoidal in plan, as in the example for an 0n30 railway shown here: