Metro Infrastructure

Gandhinagar Special Steel Span Erection

Mumbai Metro Line 4 - CA10

Project Overview

This Special Steel Span erection represents one of the most complex engineering achievements in Mumbai Metro Line 4 development. The project involved the installation of a 62.70-meter long Semi-through W Type girder weighing 540 Metric Tonnes, crossing the existing Jogeshwari Vikhroli Link Road flyover at Gandhi Nagar Junction.

The project was completed successfully and safely over 5 weekend nights starting from April 26, 2025, and ending on May 25, 2025. The span crosses at the 2nd level over the existing JVLR flyover, while Mumbai Metro Line 6 crosses at the 3rd level, creating a complex multi-level transportation infrastructure.

Key technical specifications include a girder height of 4.20 meters, fabricated in multiple pieces at a factory in Pune and transported to Tagore Nagar on Eastern Express Highway for assembly. Two temporary trestles, each measuring 13.4m x 7.4m and weighing 61 Metric Tons, were erected for temporary support during installation.

Key Highlights

62.70m Semi-through W Type girder

540 Metric Tonnes total weight

4.20m girder height

Completed in 5 weekend nights

Complex traffic management

Multi-level infrastructure crossing

Fabricated in Pune, assembled on-site

Two 61 MT temporary trestles used

Technical Specifications

Girder Type

Semi-through W Type

Total Length

62.70 meters

Total Weight

540 Metric Tonnes

Girder Height

4.20 meters

Assembly Segments

30m, 17.10m, 15.10m

Temporary Support

2 x 61 MT trestles

Fabrication Location

Pune

Assembly Location

Tagore Nagar, EEH

Machinery & Equipment

1 x 700 MT capacity heavy duty crane

1 x 500 MT capacity heavy duty crane (with standby)

2 sets multi-axle carriers with pullers

2 backup pullers

9 x 40 ton counter weight trailers

2 x 60 ft lifting beam trailers

10 x Hydras/Farana (14/15 & 27 tonne)

5 x Man lifters

6 x EICHER trucks

5 x Escort vehicles

2 x Ambulances

Workforce Deployment

25 Engineers

30 Riggers

60 Skilled & Unskilled Workmen

5 Welders

100 Traffic Wardens

Project Statistics

length

62.70m

weight

540 MT

height

4.20m

duration

5 nights

completion

May 2025

location

Gandhi Nagar Junction

Project Information

Client

MMRDA

Contract Package

CA-10

Completion Date

May 25, 2025