AASHTO LRFD Precast Girder Bridge Fabrication to ASTM and EN Standards

A prefabricated steel girder bridge project rarely follows one standard alone. A highway authority may specify AASHTO LRFD for design, ASTM for material certification, and EN for fabrication quality — all in the same contract. As a manufacturer and supplier, we work across these standards from a single factory, so you are not splitting the order between suppliers who each speak only one standard language.

Pillar 1: Design — AASHTO LRFD

Every prefabricated steel girder we fabricate is designed to AASHTO LRFD Bridge Design Specifications — the governing standard for highway and railway bridge structures in the United States and widely referenced internationally.

What this means for your project:

• Load and Resistance Factor Design (LRFD) methodology applied to all primary members

• Camber, sweep and splice details calculated to AASHTO LRFD tolerances

• Steel Bridge Design Handbook guidance followed for fabrication compatibility with latest AASHTO LRFD specifications

Pillar 2: Material — ASTM Certified Steel

All structural steel is sourced with ASTM mill certificates, ensuring traceability and compliance.

EN material grades available on request for European projects.

Pillar 3: Fabrication — AWS D1.5 and EN 1090

Fabrication and welding follow the standard your project specifies — or both, where a contract bridges US and European requirements.

Pillar 4: Certification and Traceability

AISC IBR/ABR is a widely recognized qualification for serious bridge fabricators working to AASHTO/AWS D1.5. We maintain this certification alongside AWS CWI inspection personnel and, where required, AISC FCE fracture control endorsement.

Documentation Package

Each shipment includes:

• Mill Test Reports — ASTM material certification for all steel plate

• WPS/PQR — welding procedure specifications with supporting qualification records

• Welder certificates — qualification records for all welders

• NDT reports — visual, MT, PT, UT or RT inspection results

• Dimensional inspection records — camber, sweep, length and section depth verification

• As-built shop drawings — with component marks and erection sequence

• Packing list — weights, dimensions and drawing references

What We Fabricate

Why Choose FASECbuilding?

At Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding), we bring over 20 years of experience in steel bridges and steel structures and exports to more than 100 countries and regions, specialising in steel bridges, factory buildings, trusses, composite floor decking and custom steel components. When you work with us, you get:

• One factory for AASHTO LRFD design, ASTM material and EN fabrication

• AISC IBR/ABR certified factory with AWS CWI inspection

• Complete documentation package ready for your project file

• OEM/ODM — built to your drawings, not from a catalogue

• Export packing and worldwide shipping with full logistics support

Send us your drawings, required standard and project specifications today for a free quotation and technical proposal — Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding) is ready to fabricate your prefabricated steel girder bridge to the standards your project demands.