Steel bridges
Steel girders, decks and frames manufactured to the project's construction drawings, then erected on site by our teams.
Schematic, non-contractual
Use
Steel bridges make it possible to span a gap with components prefabricated in the workshop and then assembled on site. They suit road structures as well as access structures, depending on the choices made in the structural design.
Our scope
ADL manufactures the structural components — girders, decks, frames, railings — to the project's construction drawings, in its Bouskoura workshop and within its capabilities, then erects them on site. Sizing of the structure is part of the project's structural design; our engineering office prepares manufacturing from the construction drawings provided.
For your quote
Send us the construction drawings, design calculations and specifications, the quantities, the location of the structure and the provisional schedule. We will tell you which components we can manufacture and install, and which fall to other parties.
Frequently asked questions
What is a BN4 barrier?
It is a steel safety barrier for bridge edges: horizontal rails are fixed to supports anchored into the structure with shear bolts. ADL manufactures the supports in its Bouskoura workshop; the rails are galvanised sections imported by ADL. The BN4 type is described by the Moroccan reference NM 10.9.299, which adopts the French standard NF P 98-421.
Is the S7 railing a safety barrier?
No. The S7 is a railing that protects pedestrians on bridge footways; it does not restrain vehicles. It can complement a safety barrier on the same structure.
Do your products have an approval?
An approval is specific to a product and often to a project or a project owner. We only mention it on a product sheet when we hold the corresponding document, which can then be provided on request. For a tender, ask us for the file available for the equipment concerned.
Do you install on site?
Yes. ADL manufactures the equipment in its Bouskoura workshop and installs it on site with its own teams. In your request, state the structure, the length to be fitted and any site access constraints.