The tied arch bridge is a type of design that has been around for a long time. It is particularly suitable for crossing waterways or valleys in a single span from supports set at identical heights. The principle of the "tensioned bow" enables the bridge deck to be very light, as it is the lower chord of this type of bridge, which enables the standards for river clearance to be met easily. However, every bridge has to be approached on the basis of the situation and constraints encountered there. Over the last twenty years, Greisch office has been able to design a series of bridges of this type, for the Albert Canal, following its widening at Haccourt (1983), Hermalle (1983), Marexhe (1985), Milsaucy (1987), as well as at Chanxhe, on the river Ourthe, at Esch-sur-Alzette in the Grand Duchy of Luxembourg and at Maastricht in the Netherlands.

Depending on the situation, the distances to be spanned or the width of the roads to be carried, the arrangement of the arches, the disappearance or the specific expression of the windbracing, the distribution and number of cables have varied, and given a different complexion to each of these bridges. By means of very advanced studies, Greisch office was also able to simplify the implementation, while giving them very pure lines. The reduction of the labour involved in the construction thanks to highly complex and sophisticated studies resulted in a simpler structure which give an impression of lightness and tranquillity to these bridges.