Background information:
The "Overlaatbrug" is a bridge, mostly over wetlands. This kind of bridges were build over small rivers, marshes and swamps. The biggest bridges were over 880 meters with 53 identical spans. Most bridges of this kind were shorter. Some of those bridges are still to be found in the Dutch landscape. They might be in use as bicycle-bridge.
Architectural details:
The pillars of the bridge consist of brick masonry accented with natural stone elements. The pillars are suitable for double track. In the Netherlands that is not always a guarantee that there is a double track. At the top of the pillar are elements of natural stone, on which the girders rest. Both ends of the pillars are pointed.This was not only aesthetically desirable, but also makes the pillars more resistant to running water.