An Adjustable Telescopic Span is a type of bridge that can change its length. The span is made up of several sections, or bays, that can be extended or contracted as needed. This allows the bridge to adapt to changing water levels or other conditions and makes it useful for locations where the watercourse is prone to flooding or erosion. Adjustable Telescopic Span is typically used in small or medium-sized bridges, such as those that cross rivers, streams, or canals.