Metal Box Culverts

Metal box culverts are available in spans up to 50 ft, and are an economical alternative to conventional bridges. These low profile structures are ideal bridge replacements where maintaining the existing road grade is essential.

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High-Performance Metal Box Culverts

(Structural Steel Bridge Alternative Systems)

Engineering Solutions

Our metal box culverts provide engineered solutions for:

  • Flood control with 30-50% greater hydraulic efficiency than circular pipes
  • Heavy-load applications (HS25-30 highway ratings)
  • Accelerated construction with modular bolt-together design

Technical Specifications

ParameterSpecificationComplianceMaterial3-12mm Corten SteelASTM A847/A606Span Range1.5-12 metersAASHTO LRFDCorrosion ProtectionHot-dip galvanized (G235)ISO 1461Design Life75+ yearsNCHRP Report 534

Smart Infrastructure Features

  • Optional IoT package includes:
    • Strain gauges (±0.1% accuracy)
    • Scour monitoring sensors
    • QR-tagged components for BIM integration

Geotechnical Installation Notes

For metal box culverts in:

  • Soft Soils: Minimum 300mm granular bedding
  • High Water Table: Watertight gasket connections
  • Seismic Zones: Moment-resistant corner connectors

Why Choose Our Box Culverts?

  1. Proven Performance: 5,000+ installations since 2010
  2. Technical Support: Free hydraulic calculations
  3. Sustainability: 100% recyclable with EPD certification
  4. Digital Assets: Revit families available
Material of steel plate

Q235, SS400, Q355

Service life

≥90 years

Thickness

1.6mm-8mm

Pipe Diameter

350mm-9000mm

Corrugation

68*13, 125*25, 150*50, 200*55, 300*110, 380*140, 400*150

Depth of fill

1.5-50m

Anti-corrosion treatment

hot dip galvanized ≥84μm (610g/㎡)

Standard

JTT 791-2010, AASHTO M36

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