# All 14 Heavy Portal Beams Installed Over Delhi-Mumbai Rail Tracks in Vadodara for High-Speed Corridor

> Engineers on the Mumbai-Ahmedabad bullet train project have completed all 14 portal beams over the operational Delhi-Mumbai rail lines in Vadodara, clearing the deck for elevated track construction.

**Type:** article · **Category:** Business · **Published:** 2026-10-12 · **Source:** TrendKia
**Canonical:** https://trendkia.com/en/business/vadodara-men-delhi-mumbai-rela-laina-ke-upara-sabhi-14-portala-bima-taiyara-buleta-trena-pariyojana-ko-mili-bari-raphtara-46895 · **Language:** English
**Tags:** Bullet Train Project, Mumbai Ahmedabad Bullet Train, Vadodara Railway, Portal Beams, Indian Railways, High Speed Rail

A critical engineering milestone has been achieved on the Mumbai-Ahmedabad bullet train corridor with the successful installation of all 14 heavy portal beams across the busy Delhi-Mumbai rail route in Vadodara, Gujarat. The structural work was completed directly above operational tracks without disrupting existing train schedules. This enables passenger and express services to continue running uninterrupted below while the elevated high-speed railway corridor will pass directly overhead, successfully resolving a major structural bottleneck on the national project.

## Navigating Dense Urban Infrastructure and Five Rail Tracks
An 8.3-kilometer stretch of the bullet train route in Vadodara cuts through densely populated urban neighborhoods and an intricate rail hub. This specific alignment traverses five Indian Railway tracks, including two vital main lines. Furthermore, the elevated high-speed corridor crosses the Delhi-Mumbai Rajdhani route at an oblique angle. Building heavy infrastructure across one of the country's most heavily utilized passenger rail arteries required meticulous planning to guarantee passenger safety and maintain continuous rail traffic. Specially designed portal beams were engineered specifically to span the tracks and carry the weight of the elevated viaduct overhead.

## Beam Placement Across the Vadodara Alignment
A total of 14 massive portal beams have been positioned strategically along the Vadodara section. Ten of these beams stand between the Vadodara bullet train station and Vishwamitri railway station toward the Surat direction. The remaining four beams are located between Vadodara railway station and Chhayapuri railway station facing toward Ahmedabad. Crews will now place composite girders measuring approximately 40 meters in length across these portal beams, creating the base for the elevated track bed. On adjacent stretches where track crossings are absent, construction is advancing via standard span-by-span methodology.

## Massive Dimensions and In-Situ Concrete Casting
The structural scale of each portal beam posed severe execution challenges for site engineers. Once cast, each beam weighs approximately 1,500 tonnes. In terms of dimensions, every unit measures about 37 meters in length, four meters in height, and four meters in width. Fabricating a single beam required roughly 590 cubic meters of concrete, reinforced by an internal steel structure weighing approximately 55 tonnes. Given severe space constraints and active rail traffic running below, prefabrication elsewhere was unviable; engineers poured the concrete directly in place using heavy-capacity cranes, specialized hydraulic jacks, and rigorous safety rigging.

## Next Steps for Corridor Construction
The completion of all 14 portal beams above the Delhi-Mumbai trunk line eliminates a formidable civil engineering obstacle within Gujarat. While this structural phase marks one specific component of the larger Mumbai-Ahmedabad high-speed rail development rather than the final commissioning of the entire network, it paves the way for uninterrupted girder launching and accelerated civil construction across Vadodara.

## What this means for you
The installation of all portal beams over active tracks clears a major bottleneck for the bullet train corridor while preserving regular train operations.

- **For Regular Rail Passengers:** Existing train operations on the Delhi-Mumbai mainline continue without cancellations or schedule disruptions. Civil works were executed safely above the tracks without requiring prolonged corridor shutdowns.
- **In Vadodara and Gujarat:** Completing the most complex structural element through the city reduces prolonged urban construction disruption. Local progress facilitates timely integration of the Vadodara bullet train station with the broader regional high-speed network.
- **On Project Timelines:** Removing an acute engineering hurdle allows uninterrupted girder launching across the city corridor. This accelerates the civil readiness of the Gujarat stretch of the Mumbai-Ahmedabad route.
- **For Infrastructure Standards:** In-situ casting of 1,500-tonne beams over live tracks establishes a practical engineering benchmark for Indian rail construction. It demonstrates that future elevated corridors can span dense junctions without halting primary train services.

## Why this happened
The installation of portal beams became necessary because the proposed bullet train viaduct crosses directly over the busy Delhi-Mumbai mainline in Vadodara.

- **Oblique Crossing of Mainline Tracks:** The planned high-speed rail corridor intersects the Delhi-Mumbai Rajdhani route at a diagonal angle. Standard piers could not be placed directly between active tracks, requiring wide portal beams to span across the entire railway reservation.
- **Need to Keep Rail Traffic Flowing:** Five active rail lines operate below around the clock, making prolonged service shutdowns impossible. The portal beam structure was engineered to create a clear overhead bridge that carries the future viaduct while allowing normal trains to run underneath safely.
- **Spatial Constraints in Urban Vadodara:** Dense urban surroundings precluded transporting precast 1,500-tonne girders through city roads. Engineers had to cast the 590-cubic-meter concrete structures directly in place above the live railway corridor using specialized lifting and staging equipment.

## Questions & Answers

### 1. What major construction milestone was achieved in Vadodara for the bullet train?
All 14 heavy portal beams have been successfully constructed over the active Delhi-Mumbai rail lines in Vadodara.

### 2. What are the weight and dimensions of each portal beam?
Each portal beam weighs approximately 1,500 tonnes and measures roughly 37 meters in length, 4 meters in height, and 4 meters in width.

### 3. How much material was required to build each portal beam?
Constructing each beam required about 590 cubic meters of concrete and a steel framework weighing around 55 tonnes.

### 4. Where are these 14 portal beams located in Vadodara?
Ten beams are situated between Vadodara and Vishwamitri stations toward Surat, while four are positioned between Vadodara and Chhayapuri stations toward Ahmedabad.

### 5. What is the next construction step following the beam installation?
Engineers will install composite girders of about 40 meters in length on top of these portal beams to advance the elevated corridor.

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