The Bailey trestle bridge is composed of standardized, prefabricated steel panels and components that can be easily assembled on-site. These modular elements include chords, web members, transoms, and bracing, which can be quickly connected to form the bridge structure.

• Dam and Hydraulic Structure Construction: In hydro-electric power plant construction, the trestle bridge allows for transportation of heavy turbine components and generators to the powerhouse site, and provides access for workers to install penstocks and other water-conveyance systems.
• Industrial Construction Sites: In projects like chemical plants or steel mills, trestle bridges connect different production units and transport raw materials between storage areas and processing plants.
• Temporary Support for Heavy Equipment Installation: Serves as a support structure for lifting and positioning large-scale reactors, boilers, or industrial furnaces during installation.

Trestle bridges feature an open-frame structure composed of vertical supports (usually piles) and horizontal members (beams and trusses). This design offers excellent ventilation and reduced wind resistance compared to enclosed bridge structures.

The spaces between structural members allow air to flow freely, which is beneficial in windy areas or industrial settings where ventilation is important. These bridges are highly versatile, suitable for both temporary and permanent structures in various applications from construction access to permanent industrial transportation solutions.