Crash Barrier Manufacturer India

Thrie-Beam & Thrie-Beam Metal
Crash Barrier Manufacturer

India's certified manufacturer of Thrie-Beam and Thrie-Beam Metal Crash Barriers. Standard dimensions: 686 × 125 mm. TB11 & TB42 crash-tested. Get Thrie-beam crash barrier price, dimensions & drawing — Modified, Single & Highway variants. Karad, Satara, Maharashtra.

TB11 Certified
TB42 Certified
H1 Containment
MORTH Compliant

Types of Thrie-Beam Barriers We Manufacture

Single Thrie-Beam Barrier

Standard Thrie-Beam barrier for highway edge protection, bridge side barriers, and median applications. Three corrugations provide H1 containment level performance.

Standard Application

Modified Thrie-Beam Barrier

Asymmetric profile for transition zones between W-Beam and Thrie-Beam systems. Used at bridge abutments and barrier transitions to smoothly guide vehicles.

Transition Zones

Highway Thrie-Beam Barrier

Heavy-duty version for expressways, national highways, and high-speed corridors where H2/H3 containment is required for large vehicles including trucks and buses.

High-Speed Highways

Protective Thrie-Beam Barrier

Enhanced protection variant for critical locations near steep drops, water bodies, construction zones, and areas requiring maximum vehicle redirection capability.

Critical Locations

Superior Containment for Critical Highway Sections

Thrie-Beam barriers provide significantly higher containment than standard W-Beam barriers. The additional third corrugation increases the cross-section's moment of inertia, making it 40-50% stronger under lateral impact loads.

  • 3 corrugations vs 2 in W-Beam — significantly stronger
  • H1 containment level (vs N2 for standard W-Beam)
  • Required on all Indian bridges per MORTH Section 800
  • Used for highway medians between opposing traffic lanes
  • Hot-dip galvanized to 85 microns for 25+ year service life
  • Compatible with existing W-Beam post systems
  • Modified variant available for smooth barrier transitions
Thrie-Beam Crash Barrier Dimensions & Specifications
Length4,318 mm standard
Width (rail)686 mm
Depth125 mm
Thickness2.67 mm or 3 mm
Steel GradeIS 2062 Grade 345
Galvanizing85 µm hot-dip (IS 2629)
Containment LevelH1 (EN 1317)
Crash TestTB11 + TB42
IRC ComplianceIRC SP 84 — 2019
MORTH ComplianceSection 800

Where Thrie-Beam Barriers Are Mandatory

Bridges & Flyovers

MORTH mandates Thrie-Beam on all bridge side barriers and bridge medians. Higher containment prevents vehicles from falling off bridge edges.

Highway Medians

Expressway and national highway medians separating opposing traffic require Thrie-Beam barriers to contain heavy vehicle crossover incidents.

Steep Embankments

Locations with high embankments, deep valleys, or water bodies adjacent to the highway require higher containment barriers.

Accident-Prone Sections

High-risk highway sections identified by NHAI and state PWDs where accident history necessitates higher-performance barriers.

Thrie-Beam Barrier — Frequently Asked Questions

▸  What is the difference between W-Beam and Thrie-Beam crash barriers?

W-Beam barriers have 2 corrugations (W-profile, 312 mm wide) providing N2 containment level. Thrie-Beam barriers have 3 corrugations (686 mm wide), are significantly stronger, and provide H1 containment. Thrie-Beam is required on bridges, medians of divided highways, and high-risk sections as per MORTH specifications. Think of Thrie-Beam as the heavy-duty version for critical locations.

▸  What is "Modified Thrie-Beam" and when is it used?

Modified Thrie-Beam has an asymmetric cross-section used specifically for transition sections between W-Beam and Thrie-Beam barrier systems. It is commonly installed at bridge approach sections where the barrier transitions from standard W-Beam (along the road) to Thrie-Beam (on the bridge). The modified profile ensures smooth vehicle guidance during the transition.

▸  What is the price of Thrie-Beam crash barriers?

Thrie-Beam barrier price depends on the variant (single, modified, highway), thickness, and order quantity. Thrie-Beam costs more than W-Beam due to wider profile and more steel per meter. Contact DG Constructions at +91 94296 93035 or marketing@dggroupcompanies.com for a project quote.

▸  Do you supply Thrie-Beam barriers for NHAI projects?

Yes. DG Constructions is an approved manufacturer for NHAI projects. Our Thrie-Beam barriers meet all MORTH Section 800 specifications and are crash-tested to TB11 and TB42 levels. We supply to NHAI-contracted EPC companies across India. Please provide project details and tender specifications when requesting a quote.

▸  What is the Thrie-Beam crash barrier price in India?

Thrie-Beam crash barrier price depends on: (1) variant — standard, modified, or highway type; (2) thickness — 2.67 mm or 3.0 mm; (3) quantity ordered; (4) with/without posts and accessories; and (5) current MS steel market rates. Thrie-Beam costs more than W-Beam because of the wider 686 mm profile requiring more steel per meter. For an accurate current Thrie-Beam crash barrier price, call +91 94296 93035 or email marketing@dggroupcompanies.com with your project quantity and location.

▸  What are the Thrie-Beam crash barrier dimensions?

Standard Thrie-Beam crash barrier dimensions as per IRC SP 84 and MORTH specifications: Length — 4,318 mm standard | Width (rail)686 mm (vs 312 mm for W-Beam) | Depth125 mm | Thickness — 2.67 mm (12G) or 3.0 mm | Bolt hole diameter — 16 mm | Post spacing — 2,000 mm c/c. The 686 mm wide, 125 mm deep profile gives Thrie-Beam 40–50% more strength than W-Beam, achieving H1 containment level. Steel weight approx. 15.8 kg/m (vs ~7.2 kg/m for W-Beam).

▸  How to get Thrie-Beam crash barrier drawing and design details?

Thrie-Beam crash barrier drawings follow IRC SP 84 — 2019 and MORTH Section 800 standards. The standard drawing includes: rail cross-section profile (686 mm wide × 125 mm deep, triple corrugation), post spacing (2,000 mm c/c), block-out/spacer block details, end treatment (flared or buried terminal), and anchor bolt layout. DG Constructions' engineering team can provide standard Thrie-Beam GAD (General Arrangement Drawing) and shop drawings for your project. Email your drawing request to marketing@dggroupcompanies.com.

▸  W-Beam vs Thrie-Beam — which crash barrier should I choose?

Choose W-Beam for: standard highway edge protection (NHS, SHS), median barriers on normal divided roads, level crossings, urban roads — where N2 containment level is sufficient. It is lighter (7.2 kg/m) and lower cost. Choose Thrie-Beam for: bridges and flyovers (MORTH mandatory), expressway medians, steep embankments, high-accident-risk sections, or where NHAI specifications require H1 containment. Thrie-Beam is 686 mm wide vs 312 mm for W-Beam and provides significantly higher vehicle containment. When in doubt, check your project's MORTH/IRC specification — it will specify which barrier level is required. DG Constructions manufactures both types and can advise for your specific project.

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