At Krishi Infratech, we specialize in the design, fabrication, and execution of complex Bridge and Structural Engineering Works across India’s most demanding infrastructure projects. Our expertise spans Railway Over Bridges (ROB), Road Under Bridges (RUB), Steel Girders, PSC/RCC Girders, and Composite Structures — all delivered with precision, safety, and engineering excellence.

Our strength lies in integrating advanced structural engineering, quality fabrication, and time-bound execution that meet the standards of MoRTH, NHAI, Indian Railways, and Metro Rail Corporations.

Specialized ROB/RUB/Bridges Contractor

Krishi Infratech is an empanelled contractor for ROB (Road Over Bridge) and RUB (Road Under Bridge) works, combining engineering innovation with proven project management expertise. Our solutions address urban congestion and ensure seamless connectivity through durable, safe, and low-maintenance structures.

We specialize in:

  • Turnkey bridge construction under live railway tracks.
  • Design-to-execution capabilities adhering to RDSO and MoRTH specifications.
  • Advanced formwork and launching methods for minimal traffic disruption.

Fabrication and Erection of Bow String Girder

Krishi Infratech has executed Bow String Girder bridges using precision fabrication and controlled erection techniques. These structures, known for their aesthetic appeal and strength, are fabricated in our specialized facilities with stringent quality control and NDT (Non-Destructive Testing) at every stage.

Key advantages include:

  • High load-bearing capacity with optimized material use.
  • On-site alignment and precision bolting for long-span performance.
  • Integration with railway and highway alignments for smooth operation.

Fabrication and Erection of Network Arch Bridge with Hangers

Our expertise extends to Network Arch Bridges, a sophisticated structure requiring exact geometry and tensioned hanger systems. Krishi Infratech offers complete solutions from design validation, CNC-based fabrication of arch ribs, to synchronized hanger erection under controlled stress conditions.

Salient features:

  • Engineering precision for balanced load distribution.
  • Custom hanger systems for dynamic and seismic resilience.
  • Expertise in erection over water bodies and urban crossings.

Fabrication and Launching of Composite Girder

Composite girders combine the benefits of steel and concrete for high-strength, lightweight structures. Krishi Infratech’s team ensures meticulous shop fabrication, site welding, and launching using incremental and full-span methods.

Deliverables:

  • Fabrication as per IRC 24, IS 800, and RDSO standards.
  • Controlled launching using hydraulic jacks or strand jacks.
  • Optimized for railways, highways, and metro corridors.

Casting and Erection of PSC and RCC Girders

Krishi Infratech’s dedicated casting yards and mobile batching facilities enable the production of Pre-Stressed Concrete (PSC) and Reinforced Cement Concrete (RCC) girders with consistent quality.

Capabilities include:

  • Casting up to 45m span PSC girders.
  • Post-tensioning and stress testing with precision jacks.
  • Safe transportation and lifting under expert supervision.

Why Choose Krishi Infratech for Bridge & Structural Works

  • Proven execution for major rail, road, and metro infrastructure.
  • In-house design, fabrication, and testing facilities.
  • Compliance with ISO 9001:2015, EHS, and QMS standards.
  • Strong safety culture and timely project delivery.

FAQs

Krishi Infratech combines in-house design, fabrication, and project execution capabilities, ensuring end-to-end control and quality compliance for bridges such as ROBs, RUBs, and composite structures.

A Bow String Girder bridge uses tied arches to handle load through compression and tension, while a Network Arch Bridge includes multiple diagonal hangers for superior load distribution and aesthetic appeal.

All operations follow stringent EHS and MoRTH safety standards, with detailed method statements, load tests, and real-time monitoring during launching or erection phases.

Yes, Krishi Infratech operates dedicated fabrication facilities equipped with CNC cutting, robotic welding, and NDT inspection units to ensure accuracy and reliability.

The company designs and installs Bow String, Composite, PSC, and RCC Girders, suitable for railways, highways, and metro infrastructure projects.

Absolutely. All fabrication and erection follow RDSO, MoRTH, IRC, and IS codes, ensuring durability and compliance for all government and public-sector projects.

Project duration varies by span and complexity. However, Krishi Infratech’s integrated approach minimizes delays through concurrent fabrication and site preparation.

Yes. From design and engineering to fabrication, erection, and commissioning – Krishi Infratech offers turnkey solutions with complete quality assurance and documentation support.