
CRITICAL INDUSTRIAL INFRASTRUCTURE / RAILWAY BRIDGES, BARRAGES & REFINERY SHUTDOWNS
Proven Engineering Field Execution: Ongoing & Completed Projects Across India
Boltorq Infracon Pvt. Ltd. provides specialized engineering, steel fabrication, welding, assembly, alignment and erection services for infrastructure and industrial projects across India.
Our project portfolio includes railway bridges, steel truss assembly, composite girder erection, coastal infrastructure, heavy steel fabrication for steel plants, metro infrastructure, industrial structural strengthening and hydro-project pipe-work capabilities.
- ISO 9001, ISO 14001 & ISO 45001 Certified EPC Subcontractor
IN-HOUSE MACHINERY FLEET
| Performance Benchmark | Field Execution Achievement |
| Total Projects Delivered | 180+ Active \ Completed Industrial Field Sites Across India |
| Open Web Girder (OWG) Spans | Up to 76.2-Meter Single Span Cantilever Launches |
| Flange Bolting Integrity | 50,000+ High-Pressure Bolts Torqued with 100% Zero Hydrotest Leaks |
| Site Safety Standard | 0.00 Lost Time Injury (LTI) Across High-Elevation & Railway Work |

Shunya Bridge, BKC, Mumbai
In this project boltorq infracon performs structural fabrication, assembly and erection work for the Shunya Bridge at BKC, Mumbai. J. Kumar Infraprojects Ltd. is identified in connection with this project.
Key scope:
- Structural fabrication of steel components
- Assembly of complex structural elements
- Steel structure erection
- Precision-focused execution and alignment

Canopy Structure Erection Work, Worli, Mumbai
This project involves canopy structure erection work in Worli, Mumbai, for SG Heavy Engineering. The work focuses on the installation of durable and aesthetically designed canopy structures to support infrastructure requirements, improve protection from weather conditions, and enhance site functionality.
The project involves specialized equipment and safe construction practices to achieve accurate alignment, structural stability, and quality execution.
Key scope of work
- Canopy structure erection
- Structural steel positioning and alignment
- Safe handling and installation of structural components
- Precision erection and fit-up
- Quality control and site safety management

Tata Motors, Sanand, Gujarat
Boltorq Infracon undertook structural strengthening and alignment works at the Tata Motors facility in Sanand, focusing on the realignment of existing structural members and reinforcement of load-bearing elements.
Scope of Work
- Structural assessment and strengthening
- Realignment of existing structural members
- Reinforcement of load-bearing elements
- Precision structural alignment

Chain Link Fencing Work – Mundra, Gujarat
This project involves chain link fencing work at Mundra, Gujarat, under a contract awarded by Afcons Infrastructure. The scope includes the supply, fabrication, and installation of high-quality chain link fencing with suitable gate systems for industrial and port infrastructure.
The work is focused on providing secure, durable, and corrosion-resistant fencing solutions designed for long-term performance in demanding site conditions.
Key scope of work
- Supply of chain link fencing materials
- Fabrication and installation of fencing
- Gate installation
- Fence alignment and secure fixing
- Corrosion-resistant and durable fencing solutions
- On-site execution and quality assurance

Indore Underground Metro Project
The updated portfolio identifies Boltorq’s participation in the Indore Underground Metro Project. The stated scope includes steel structure fabrication and “wellar works,” with emphasis on precision, safety and timely execution.
Key scope:
- Steel structure fabrication
- Documented “wellar works”
- Site execution and quality checks
- Safety-focused coordination

Arch Coastal Bridge, Nhava Sheva, Mumbai, Maharashtra
In this fabrication, assembly and erection work for the Mumbai Arc Coastal Road Project, contributing to a major urban coastal infrastructure initiative. HCC Infrastructure is identified in connection with the project.
Key scope:
- Fabrication of arch-bridge components
- Steel structure assembly
- Structural erection
- Precision-focused site execution

Bhadbhut Barrage Project, Bharuch, Gujarat
This project includes fabrication and erection of steel structures associated with the Bhadbhut Barrage project near Bhadbhut village on the Narmada River in Gujarat.
Key scope:
- Structural steel fabrication,
- Steel erection,
- Site coordination and installation.

Dimapur Railway Project, Nagaland
In this project boltorq infracon done assembly, erection and launching of open-web girders for Northeast Frontier Railway works. The stated configuration comprises three 61.0 m spans and seven 76.2 m spans, with HSFG bolting and a cantilever launching arrangement.
Key scope:
- Open-web girder assembly, launching,
- HSFG bolting and structural alignment.

JSL, Jajpur — Essar Construction
This project includes structural fabrication, heavy steel assembly and erection for the JSL Jajpur project associated with Essar Construction.
The project adds an important industrial fabrication reference to Boltorq’s portfolio alongside its bridge and railway infrastructure work.
Key scope:
- Structural steel fabrication
- Heavy steel assembly
- Steel erection
- Industrial site execution

Pre-Engineered Buildings (PEB)
Boltorq provides contract-based PEB services covering steel structure erection, primary and secondary steel installation, roofing and cladding support, bolting, alignment and levelling.
Key scope:
- Primary and secondary steel erection
- Structural bolting and fastening
- Roofing and cladding support
- Alignment and levelling
- Coordination with civil and MEP teams

JSPL Angul Steel Plant Project
Boltorq Infracon’s works structural fabrication, heavy steel assembly and erection work for the JSPL Angul Steel Plant. The project description emphasizes precision, quality and timely execution in a demanding industrial environment.
Key scope:
- Heavy structural steel fabrication
- Steel structure assembly
- Industrial steel erection
- Site execution and structural positioning

DFCC / WDFCC Steel Truss Assembly, Gujarat
This Project works involved the construction of a working gallery and final assembly of a steel truss using bolted joints.
Key scope:
- Steel truss assembly
- Working gallery construction
- Bolted-joint installation.

Bairabi–Sairang Railway Project, Mizoram
Boltorq Infracon records the supply, fabrication, assembly and erection of composite girders for nine major bridges comprising 55 spans between Hortoki and Sairang. The documented span lengths range from 18.3 m to 30.5 m.
Key scope:
- Composite girder erection
- Metallizing,
- Bearing installation, painting
- Deck-slab works, pathways and inspection access.

OWG Girder / Steel Span, Dhrangadhra, Gujarat
The project involved open-web girder and steel-span assembly, erection and launching at the L&T Viramgam site in the Dhrangadhra area of Gujarat.
Key scope:
- Girder assembly
- steel-span erection
- launching and structural alignment.

Mahatma Gandhi Setu, Patna, Bihar
Boltorq Infracon’s this project included the assembly and erection of the permanent steel truss for the replacement of the superstructure of Mahatma Gandhi Setu over the Ganga River. The profile identifies a 5.575 km bridge section on NH-19, between chainages 212.72 km and 218.295 km.
Key scope:
- Steel truss assembly
- Bridge superstructure erection
- Structural positioning and bolted-joint execution.
Core Engineering Capabilities
At Boltorq Infracon, every field deployment is governed by rigorous site quality audits, stringent HSE protocols, and absolute compliance with international engineering codes. Whether operating on high-elevation wind turbine nacelles, offshore platforms, nuclear containment units, or cross-country petrochemical pipelines, our execution squads deliver predictable project timelines, eliminate costly shutdown overruns, and guarantee 100% zero-leak joint integrity.

Steel Bridge Erection & Girder Launching
Assembly, erection and launching of steel trusses, open-web girders and composite girders.
VIEW ERECTION CAPABILITIES
Heavy Steel Fabrication & Industrial Erection
Structural steel fabrication, heavy assembly, welding and erection for industrial plants and infrastructure projects.
VIEW BOLTING CAPABILITIES
Railway & Metro Infrastructure
Structural installation activities for railway bridges, girder spans and metro-related steelwork within the confirmed project scope.
View Infrastructure projects

Controlled Bolting & Precision Alignment
Bolted-joint execution, HSFG bolting, structural positioning and precision alignment using appropriate equipment and approved procedures.
VIEW bolting CAPABILITIES

Pipe Segment Welding & PEB Structure Erection
Proposed and contract-based pipe-segment handling, fit-up, welding, assembly and erection capabilities, subject to the relevant project award and scope. Primary and secondary steel erection, fastening, alignment and associated installation works.
VIEW PIPING CAPABILITIES

Industrial Structural Strengthening
Realignment, reinforcement and structural modification for industrial facilities.
VIEW CIVIL CAPABILITIES
Why Choose Boltorq Infracon?
Boltorq Infracon combines heavy steel fabrication, structural assembly, welding, precision alignment and erection capabilities for demanding industrial and infrastructure environments.
REQUEST capability DATA12+ YEARS OF FIELD EXECUTION EXCELLENCE
why choose boltorq infracon pvt ltd.?
- Documented steel bridge and railway girder work
- Heavy structural fabrication and erection experience
- Industrial steel-plant project exposure
- Structural strengthening and alignment capabilities
- Skilled site manpower and specialized equipment
- Focus on quality checks, safe execution and documentation

Discuss Your Next Infrastructure Project
Planning a steel bridge erection package, railway girder installation, industrial fabrication assignment, metro steelwork package or pipe-segment welding project?
Contact Boltorq Infracon Pvt. Ltd. to discuss your requirements and the relevant engineering scope.
Frequently asked questions
What types of projects does Boltorq Infracon undertake?
Steel bridge erection, railway girder assembly and launching, heavy steel fabrication, industrial structural strengthening, coastal infrastructure, metro-related fabrication and PEB services.
What types of projects does Boltorq Infracon Pvt. Ltd. specialize in?
Boltorq Infracon Pvt. Ltd. specializes in heavy industrial and infrastructure subcontracting, including Open Web Girder (OWG) railway bridge launching, river barrage heavy steel erection, refinery turnaround joint integrity management, Pre-Engineered Building (PEB) assembly, and 3D laser crane runway rail alignment.
Boltorq
How does Boltorq Infracon manage complex railway bridge launching without mid-stream staging?
For large spans (such as our 76.2-meter spans on the N.F. Railway project in Nagaland), we design and deploy custom cantilever launching gantries. This allows full structural assembly and launching over river gorges or live rail corridors without needing ground-based or mid-river falsework.
What guarantees does Boltorq Infracon offer during refinery turnaround contracts?
Operating strictly under ASME PCC-1 guidelines, our 24/7 multi-pass hydraulic torquing and tensioning squads deliver a 100% first-pass zero-leak hydrotest guarantee on all pressure boundary flange joints.
