The Chenab Bridge stands 359 m above the river it crosses — about 29 m taller than the Eiffel Tower, which has stood 330 m tall since its new antenna was fitted in March 2022 — carrying rail traffic across a Himalayan gorge in Seismic Zone V, where wind speeds can reach 266 km/h.

Conventional ground-based falsework was never an option here: the terrain made it structurally and logistically impractical at any reasonable cost. The answer was to erect the arch from both valley walls at once, using cable-supported methods throughout, and let the two halves meet in the air.

359 m
Height above river
467 m
Main arch span
915 m
Cable-crane span
120 yrs
Design life
Phase 1 — Dual-face arch erection
Building out from both abutments
The two steel arch ribs were erected simultaneously from opposite sides of the valley, each held by temporary steel cables attached to the bridge foundations until the ribs met at the crown, according to WSP.
Phase 2 — The cable-crane system
Positioning steel with no access from below
An overhead cable-crane system spanning 915 m carried and positioned steel across the gorge, where it was assembled in situ into larger segments — a method chosen because the site could not be reached from below. Two crossbar units rated at 20 tonnes each could work in tandem, according to VCE; Indian Railways cites a combined capacity of 34 tonnes.
Phase 3 — Arch closure
The structure becomes self-supporting
The arch became self-supporting at closure in April 2021 — the moment the structure stopped depending on the temporary stay-cable system and started carrying its own weight.
Phase 4 — Incremental deck launch
The Golden Joint
Once the arch was self-supporting, the bridge deck was launched incrementally over it, progressively transferring load onto the completed arch. The deck's final closure — the "Golden Joint" — was reached in August 2022.

A record height, a 467 m arch span, and construction in remote, high-wind, high-seismic terrain with no direct access from below — one of the most demanding bridge-erection sequences ever executed.

WSP reports that the client and contractor required BIM modelling of the structures from the start of the project, including the temporary ropes and anchorage towers used to erect the arch. Arch closure in April 2021 and the deck’s Golden Joint in August 2022 were about 16 months apart. The Chenab Bridge redefined what's achievable in large-span arch erection, combining cable-supported lifting, stay-cable stabilisation, and real-time geometric control across one of the world's most difficult access environments.

For further reading on cable-supported and arch erection methods, see Erection Engineering in Bridge Construction and What is Strand Jacking?

Related case studies: Pelješac Bridge · Millau Viaduct · Oléron Viaduct

Core concepts: What is erection engineering? · What is heavy lift engineering?

The Chenab Rail Bridge spanning the deep gorge of the Chenab River in Reasi district, Jammu and Kashmir, India, showing the steel arch and approach spans against the surrounding mountains
The Chenab Rail Bridge over the Chenab River gorge, Reasi district, Jammu and Kashmir. Resized from the original for web display.
Photo: Government of India, Ministry of Railways, via Wikimedia Commons, GODL-India.
Four-panel schematic of the Chenab Bridge erection: arch ribs built out from both valley walls on temporary stay cables; a 915 m cable crane with two 20 t crossbar units placing steel; arch closure in April 2021; incremental deck launch over the self-supporting arch to the Golden Joint in August 2022.
Chenab Bridge — cable-supported arch erection, then deck launch.
Diagram: EE&HL Network, 2026. Conceptual schematic — not to scale.
Tap or click the diagram to open it full size.

Sources: Konkan Railway Corporation (Ministry of Railways, Government of India) — official project data for the 359 m height and 467 m arch span; WSP — design engineer's project record (BIM modelling, temporary ropes and anchorage towers); WSP, “Chenab Bridge — connecting the arch up in the clouds” (PDF) — arch halves hung on steel cables attached to the bridge foundations; Société d’Exploitation de la Tour Eiffel — 330 m height since March 2022; Vienna Consulting Engineers — cable-crane span and crossbar-unit capacity; Heritage Directorate, Indian Railways — combined cable-crane lifting capacity. Figures are reported as published.

Frequently Asked Questions

The Chenab Bridge stands 359 m above the Chenab River, making it the world's highest railway bridge — about 29 m taller than the Eiffel Tower, which has stood 330 m tall since its new antenna was fitted in March 2022.

The bridge crosses a steep Himalayan gorge in the Reasi district of Jammu & Kashmir, where the terrain made conventional ground-based falsework structurally and logistically impractical at any reasonable cost. Instead, the two steel arch ribs were erected simultaneously from both valley walls, each held by temporary steel cables attached to the bridge foundations, according to WSP, and connected using an overhead cable-crane system rather than supports built up from the valley floor.

An overhead cable-crane system spanning 915 m carried steel across the gorge and positioned it for assembly into larger segments in situ. It ran two crossbar units rated at 20 tonnes each, which could work in tandem, according to Vienna Consulting Engineers (VCE); Indian Railways cites a combined capacity of 34 tonnes in a single operation. It was chosen because the site could not be reached from below, and it operated in parallel from both abutments as the arch ribs advanced toward the crown.

The bridge was built in Seismic Zone V and designed to resist wind speeds of up to 266 km/h, with a 120-year design life. The main steel arch spans 467 m.

The arch became self-supporting at closure in April 2021, after which the deck was launched incrementally over it. The deck's final closure, referred to as the "Golden Joint," was reached in August 2022.