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Open Web Bridge

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Lahaul Valley

360M Barsi Major Multi-Span Open Web Steel Bridge

Located at an altitude of 11,020 feet in the harsh, sub-zero terrain of Himachal Pradesh, the Barsi Bridge over Darcha Nallah serves as a vital infrastructure link built to withstand extreme Himalayan weather conditions. The project involved precision engineering, assembling, and launching a massive multi-span steel superstructure in high-altitude environments.

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Project Name Barsi Major PMT Bridge (Darcha Nallah)
Bridge Type Through-Type Open Web Steel Truss Bridge
Total Length 360 Meters
Span Configuration 6 Spans × 60 Meters each
Altitude / Elevation 11,020 Feet above sea level
Location Lahaul Valley, Himachal Pradesh (BRO Route)
Client / Main Contractor Garg & Garg Co.
Status Completed

  • Structural Assembly & Launching : Assembling and erecting 6 individual 60-meter steel truss spans across the river bed with specialized heavy-lifting and launching equipment.
  • Extreme Terrain Execution : Mobilized specialized logistics, heavy tools, and specialized workforce under severe sub-zero temperatures and high-altitude low-oxygen working conditions.
  • Heavy-Duty Design Compliance : Built strictly to Border Roads Organisation (BRO) PMT specifications to handle heavy strategic transport, commercial loads, and severe environmental seismic activity.
  • Precision Fitting & Fastening : High-tensile bolting and alignment across all 6 spans to ensure load distribution and structural integrity across the 360-meter bridge span.
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Alaknanda River

190M Deck - Type Open Web Steel Superstructure Bridge

Constructed over the mighty Alaknanda River at Chauras (Srinagar, Pauri Garhwal), this vital infrastructure project connects critical regional corridors across Uttarakhand's mountainous terrain. The project required high-precision on-site assembly, erection, and structural placement of heavy open-web steel girders across multiple varied spans under challenging Himalayan riverine conditions.

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Project Name Chauras Alaknanda River Bridge
Bridge Type Deck-Type Open Web Steel Truss Bridge
Total Length 190 Meters
Span Configuration Spans: 80M (1 No.) + 40M (2 Nos.) + 30M (1 No.)
Location Chauras, Srinagar, Pauri Garhwal, Uttarakhand
Client / Main Contractor S P Singla Construction (P) Ltd.
Status Completed

  • Multi-Span Assembly & Erection : Assembled and erected a complex 4-span layout totaling 190 meters, featuring a massive central 80-meter span along with 40-meter and 30-meter approach spans.
  • Deck-Type Truss Configuration : Engineered to carry vehicular traffic directly on the top deck structure, providing structural stability, optimal load distribution, and unobstructed clearance over the river bed.
  • Challenging Riparian Execution : Successfully executed heavy lifting, alignment, and cantilever/crane-assisted structural erection over high-velocity river currents and rugged riverbed topography.
  • High-Precision Fitment : Strict adherence to structural tolerances using high-strength friction grip (HSFG) bolting and continuous alignment checks to ensure long-term seismic and aerodynamic resilience.
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Kurali-Kiratpur Highway (NH-21)

110M Through - Type Open Web Two - Lane Steel Bridge

Engineered to support heavy commercial traffic along the critical National Highway 21 corridor, this major highway project connects the Kurali–Kiratpur stretch in Punjab. The undertaking required complete fabrication, site assembly, and structural erection of a single-span 110-meter through-type open web steel truss to ensure seamless two-lane vehicular movement over water.

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Project Name Kurali – Kiratpur Highway Project (NH-21)
Bridge Type Through-Type Open Web Steel Truss Bridge
Configuration Two-Lane Major Highway Bridge
Total Length 110 Meters
Span Details Single Span (1 × 110M)
Location Kurali - Kiratpur Highway (NH-21), Punjab
Client / Main Contractor S P Singla Construction (P) Ltd.
Status Completed

  • Fabrication & Heavy Truss Assembly : Precision shop fabrication and on-site assembly of high-strength structural steel members forming the 110-meter through-type truss framework.
  • Through-Truss Superstructure : Built with an overhead bracing system to distribute dynamic traffic loads across the single 110M span while providing clear vertical clearance for heavy highway transit.
  • National Highway Compliance : Executed in strict accordance with MoRTH and NHAI structural guidelines to accommodate high-density, multi-axle freight and passenger loads.
  • Precision Site Erection : Complete staging, alignment, and high-tensile structural fastening executed over the water channel to ensure zero structural deflection and long-term durability.
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Malakunti, Rishikesh, Uttarakhand

220M Heavy - Duty Through - Type Open Web Steel Bridge

Spanning over the river gorge at Malakunti near Rishikesh in Uttarakhand, this major infrastructure project involved the assembly and structural erection of a 1,700 Metric Ton steel superstructure. Engineered with two massive 110-meter spans, the through-type open web bridge is designed to ensure safe, heavy-duty connectivity across complex Himalayan river valley terrain.

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Bridge Type Through-Type Open Web Steel Truss Bridge
Total Length 220 Meters
Span Configuration 2 Spans × 110 Meters each
Total Steel Weight 1,700 Metric Tons
Client / Contractor Rajshyama Construction Pvt. Ltd. (RSCPL)
Status Work Completed

  • Heavy Steel Superstructure (1,700 MT) : Assembled and erected heavy-grade structural steel members totaling 1,700 metric tons, maintaining exact engineering tolerances and load distributions.
  • Dual 110-Meter Span Execution : Built two continuous 110M open web through-truss spans across deep piers over the flowing river channel.
  • Through-Truss Structural System : Utilizes high-overhead lateral cross-bracing to provide structural rigidity against high-wind corridors and seismic movements inherent to the Uttarakhand belt.
  • Mountainous Site Logistics : Managed precision staging, alignment, heavy lifting, and high-tensile bolting on narrow hillside terrain with minimal workspace interference.
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Palchan Bypass, Rohtang, Himachal Pradesh

100M Through-Type Open Web Steel Bridge

Constructed along the strategically critical Palchan Bypass corridor en route to Rohtang in Himachal Pradesh, this infrastructure project involved the assembly and structural erection of a 400 Metric Ton steel superstructure. Designed with combined 70-meter and 30-meter spans, the through-type open web bridge ensures high-load capacity and reliable year-round transit across rugged high-altitude Himalayan terrain.

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Bridge Type Through-Type Open Web Steel Truss Bridge
Total Length 100 Meters
Span Configuration 2 Spans: 70M (1 No.) + 30M (1 No.)
Total Steel Weight 400 Metric Tons
Client / Contractor Garg & Garg Company
Status Work Completed

  • Dual Span Steel Superstructure : Executed precise on-site assembly and erection of a 70-meter primary span paired with a 30-meter approach span, utilizing 400 MT of high-grade structural steel.
  • Heavy-Duty Through-Truss Design : Built with overhead lateral sway bracing and rigid chord configurations to provide exceptional structural strength under severe snow loads and high-traffic conditions.
  • High-Altitude Staging & Erection : Deployed specialized heavy cranes, modular falsework, and temporary support towers in rocky, snow-prone riverbed terrain.
  • Precision Bolted Connections : Completed structural fit-ups and high-tensile torque bolting under strict engineering tolerances to withstand seismic vibrations and sub-zero weather stresses.
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Kurkuti-Gamshali, Chamoli, Uttarakhand

100M Through-Type Open Web Steel Bridge

Constructed along the strategic border corridor between Kurkuti and Ghamsali near Joshimath (Chamoli District, Uttarakhand), this high-altitude infrastructure project encompasses a major 2,000 Metric Ton steel superstructure. Featuring six varied open-web truss spans, the bridge is engineered to provide robust, all-weather connectivity for defense and civilian transport across rugged Himalayan river terrain.

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Bridge Type Through-Type Open Web Steel Truss Bridge
Total Length 360 Meters (Cumulative Spans)
Span Configuration 6 Spans: 60M (4 Nos.) + 45M (1 No.) + 75M (1 No.)
Total Steel Weight 2,000 Metric Tons
Client / Contractor BRO / Oasis DMR Projects Limited
Status Work in Progress / Completed Stages

  • Massive Structural Assembly (2,000 MT) : Assembled and erected heavy-grade structural steel members totaling 2,000 metric tons across multiple spans.
  • Multi-Span Configuration : Executed a versatile layout including four 60-meter spans, one 45-meter span, and a heavy 75-meter long-span truss across deep river gorges.
  • Through-Truss Superstructure : Built with comprehensive top and lateral bracing systems to maximize torsional rigidity against high cross-winds and seismic activity inherent to the Chamoli region.
  • High-Altitude Himalayan Logistics : Managed challenging heavy-crane staging, complex site logistics, and specialized falsework across narrow cliffside approaches and fast-flowing river currents.
  • High-Strength Fastening : Executed complete torque-controlled HSFG bolting and joint alignment in compliance with stringent Border Roads Organisation (BRO) specifications.
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Ghaghara River, Varanasi Division, Uttar Pradesh

549M Major Railway Through-Type Open Web Steel Bridge

Constructed across the vast Ghaghara River under the Varanasi Division in Uttar Pradesh, this major Indian Railways bridge project comprises an extensive 2,070 Metric Ton steel superstructure. Featuring nine continuous 61-meter open-web through-truss spans, the bridge is engineered to handle heavy axle railway freight and passenger traffic with high structural durability and precision alignment over a wide river basin.

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Bridge Type Railway Through-Type Open Web Steel Truss Bridge
Total Length 549 Meters (Cumulative Spans)
Span Configuration 9 Spans × 61 Meters each
Total Steel Weight 2,070 Metric Tons
Client / Contractor SPS Construction India Private Limited
Sector / Authority Indian Railways (Varanasi Division)

  • Heavy Railway Truss Superstructure (2,070 MT) : Assembled and erected nine massive 61-meter open web through-truss spans engineered to strict Research Designs and Standards Organisation (RDSO) railway loading parameters.
  • Cantilever Launching with Nose : Executed specialized incremental cantilever launching using custom-fabricated launching noses to bridge piers safely across the wide water channel without intermediate ground staging.
  • Open-Web Through-Type Design : Incorporates rigid overhead bracing, cross girders, and longitudinal stringers designed to resist high dynamic impacts and heavy axle live loads.
  • Precision Site Assembly : Conducted on-site member fabrication, staging, and high-tensile HSFG bolting on riverbed abutments with sub-millimeter level alignment.
  • Large-Scale River Crossing Operations : Successfully managed complex marine-like logistics, pier staging, and structural sliding over broad riverbed conditions.
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