The simplest type of bridge that is ideal for short spans or places where columns won't obstruct is a beam bridge.
1. **Beam Bridge**:
- A beam bridge is the most basic and traditional type of bridge. It consists of a horizontal beam supported at each end by piers or abutments.
- Beam bridges are suitable for short spans, such as crossing a small river or a road, where the distance between the supports is not very large.
- These bridges are straightforward in design, cost-effective, and easy to construct, making them a common choice for various applications.
In the given options:
- Suspension bridges have tall towers and are ideal for long spans.
- Truss bridges use a framework of triangles to support the load.
- Arch bridges have a curved structure that distributes weight to the abutments.
Therefore, the beam bridge is the best fit based on the description provided in the question.
