LSB Light Steel Bridge

The LSB (Light Steel Bridge) is the most lightweight option in our product range. It is specifically designed for scenarios requiring simple, easily transportable crossings that do not need to support heavy trucks. Disaster relief agencies, public works departments, and operators of remote camps frequently choose this bridge because it can be transported by standard trucks and assembled by a small team without the need for specialized equipment.

Our design focuses on three key aspects: lightweight components, simple connection methods, and convenient logistics. The bridge deck panels, crossbeams, and deck units can be loaded onto standard flatbed trucks or even packed into 20-foot shipping containers. Despite its portability, the bridge features a robust, well-engineered truss structure that provides a stable and reliable crossing, ensuring long-term durability for pedestrian and light-vehicle traffic.

Lightest panel class in the product range; man-portable on shorter spans. The LSB (Light Steel Bridge) makes this practical.

Standard flatbed or container transport; no oversized-load permits needed.

Hand-tools-only assembly with standard shear pins and bolts.

Galvanized finish supports multi-year outdoor service.

Modular length and width configurable to site conditions.

Low foundation cost; suitable for soft or prepared ground.

From the perspective of structural mechanics, an LSB (Light Steel Bridge) is essentially a simple, lightweight truss structure. When vehicles or pedestrians move onto the bridge deck, the load is transferred via the deck beams to the parallel longitudinal trusses on either side. The geometric configuration of the truss web members converts these loads into axial forces distributed throughout the chords and web members, keeping the stress on the components at a low and predictable level-an ideal characteristic for lightweight structures.

Transverse bracing is installed between the trusses to effectively prevent lateral deformation or swaying when the bridge span is subjected to uneven loading. The bridge utilizes a straightforward "side-assembly" construction method: individual structural components are pinned together on supports located at one of the abutments, and the assembled structure is then moved or rolled across the span using temporary rollers (a process that can be executed with a manual winch or a small excavator). Once in position, the bridge is seated onto bearing plates atop the abutments on both sides. To dismantle the bridge, the process is simply reversed: the components are disassembled and stacked flat, ready for transport and reuse.

The LSB (Light Steel Bridge) is designed for emergency access following events such as floods or earthquakes, accommodating both pedestrians and light vehicles. It also serves as a pedestrian crossing or maintenance access point over streams, ditches, and railway embankments. Furthermore, it is widely used in remote camps, scientific research projects, parks, hiking trails, and on golf courses. Farms and ranches also rely on it to facilitate movement, and it serves as a temporary access solution for construction sites or industrial areas where heavy equipment cannot gain entry.

The LSB (Light Steel Bridge) is our lightest class, so customization is about keeping it small, light and easy to move. Panels are 3.0 m × 1.1 m and under 200 kg, deck 2.5 m for pedestrians or 3.3 m single lane, and span from 6 m to 28 m with single or double truss. Everything ships on a standard flatbed or a 20-foot container, so no oversized-load permit and no specialist logistics. Finish is hot-dip galvanized as standard, and handrails, edge beams and ramp units come as standard accessories. Send us a site photo and the traffic type and we'll quote a kit your team can put up with hand tools and a small excavator. 

The LSB (Light Steel Bridge) is a simple lightweight truss built from 3.0 m × 1.1 m panels pinned end to end into two parallel longitudinal trusses. Load from the deck runs down through the floor beams into the trusses, and the web geometry converts it into axial forces through the chords and diagonals. Cross-bracing between the truss lines stops the span from racking or swaying under an uneven load. The deck is steel grating or checker plate seated on the trusses, and the assembly rests on bearing plates on simple timber sills or steel plates on compacted fill. Pins and bolts are standard shear pins, so hand winches or a small excavator do the launching.