Precast Girder Bridge Manufacturer and Supplier for Highway and Railway Projects

Prefabricated Steel Bridge Girders for Highway and Railway Projects: one source for shop-fabricated steel bridge girders — plate girders, box girders and segmental spans — supplied for highway and railway bridge projects, with AASHTO LRFD design compliance, AWS D1.5 welding and export delivery.

• ✅ One Source, Multiple Girder Types: Plate girders, box girders, segmental spans

• 🛣️🚆 Two Markets: Highway bridges and railway bridges

• 📐 Design & Welding Standards: AASHTO LRFD, AWS D1.5, ASTM A709

• 🏭 Factory Quality: Controlled fabrication, welding and trial assembly

• 📦 Export Ready: Documented quality and worldwide shipping

Detailed Description

Choosing the right prefabricated steel girder is not about picking a catalogue item. It depends on span, load, clearance, transport limits and erection method. As a manufacturer and supplier, we work from your project parameters — not from a fixed product list — and recommend the girder type, section depth and fabrication arrangement that fits your bridge.

This page is built around three decisions bridge engineers and contractors face most: which girder type, which bridge application, and how to verify quality before delivery.

🔩 Decision 1: Which Girder Type Fits Your Project?

What we supply: Prefabricated steel girders in standard and custom sections, with cross beams, diaphragms, stiffeners and connection details. We also supply bridge deck support steel and associated fabricated components for highway and rail projects.

🛣️🚆 Decision 2: Highway Bridge or Railway Bridge?

The two applications demand different design priorities.

🛣️ Highway Prefabricated Steel Bridges

• Design focus: Live load distribution, fatigue, deck integration.

• Common sections: Plate girders, box girders.

• What matters on site: Fast erection to minimize traffic disruption — prefabricated girders lift into position in hours.

• Our supply: Girders fabricated to AASHTO LRFD, with camber control for deck profile.

🚆 Railway Prefabricated Steel Bridges

• Design focus: Heavy axle loads, dynamic amplification, track alignment.

• Common sections: Box girders, tub girders.

• What matters on site: Track tolerance and stiffness under repeated loading.

• Our supply: Girders fabricated with stiffer sections and close dimensional control for track support.

Shared advantage for both: Fabrication in a controlled factory environment — not on site — delivers consistent weld quality, repeatable geometry and documented inspection before the girder ever reaches the bridge.

✅ Decision 3: How Do You Verify Quality Before the Girder Ships?

Factory quality control is the difference between a girder that fits and performs, and one that causes site delays. Our process covers four checkpoints:

📋 Standards & Certification

• AASHTO LRFD — design basis for highway and railway bridge girders

• AWS D1.5 — Bridge Welding Code; WPS/PQR, welder qualification, inspection

• ASTM A709 — structural steel for bridges, Grade 50 / 50W / HPS 70W as specified

• AISC IBR/ABR — Certified Bridge Fabricator for major and advanced bridge work

• AWS CWI — Certified Welding Inspector; welding inspection coverage

• Project-specific standards — AS/NZS, EN or other national standards on request

🔧 Materials & Process

• Structural steel: ASTM A709 Gr. 50 / 50W — 50W for weathering steel applications.

• Welding: Per D1.5 qualified procedures, certified welders.

• Fabrication: Cutting, forming and fit-up to AASHTO LRFD tolerances.

• Finish: Shot blasting, priming, painting or Corten-style weathering steel.

📦 Delivery & Export

Girders are loaded, braced and shipped with:

• Lifting points marked for crane or launcher handling

• Shipping brackets to prevent movement in transit

• Packing list with girder marks, lengths, weights and erection sequence

• Documentation pack: Mill certificates, WPS/PQR, NDT reports, dimensional records, as-built drawings

Where girders exceed road transport limits, segmental delivery with field splices is available.

⭐ 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 manufacturer for plate girders, box girders and segmental spans

• Highway and railway experience — different priorities, one quality system

• AISC IBR/ABR certified factory with AWS CWI inspection

• Factory trial assembly — your girders fit before they ship

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

• Export packing and worldwide shipping with full logistics support

Send us your span, load, bridge type and transport constraints today for a free quotation and technical proposal — Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding) is ready to manufacture the right prefabricated steel girder for your highway or railway bridge.