Image: Acrow

Crossing the bridge

Kedarnath Pilgrimage Bridge, India

A major cloudburst in 2013 and a second flood in 2015 washed away a large part of the valley of Kedarnath, centred on the north Indian State of Uttarakhand, causing major loss of life and destruction to property.

An important first step within the reconstruction process for the region was the rebuilding of a bridge at Sonprayag. This formed an important part of the route taken each year by hundreds of thousands of Hindu pilgrims from all over the world, on the trek to the Kedarnath Temple, 3,500 m above sea level.
galvanized bridge in india

In order to retain a link for pilgrims, a temporary bridge was built but this unfortunately was washed away on two occasions by floods, most recently in June 2015. A more permanent solution was sought by the Indian government that had to be quick to construct, be able to be built within a hostile environment but also provide an economic solution.

The project received funding from the World Bank and assistance from the Uttarakhand
Disaster Recovery Project team. Bridge engineering and supply company, Acrow, was appointed to provide a 60 m, galvanized, modular, clear span bridge, which sits 2,600 m above sea level, and customised to address local conditions. Unlike previous crossings, the new structure provides two lanes of traffic, allowing far more capacity for pilgrims and local residents alike.

Sonprayag Bridge in IndiaIn a remote location such as Kedarnath, with its challenging topography building a conventional bridge would not only be very time consuming and costly but would be a logistical nightmare, involving the transport of materials and heavy construction equipment.

The solution of a modular galvanized steel structure offers many benefits that have been proven over many years. The light, smaller steel sections can be transported and erected easily on site using an unskilled work force. Galvanizing offers long term protection and will therefore help to provide structural integrity during the inevitable cycle of floods.

Remote areas such as this often have substandard road conditions. This can make it difficult to transport heavy construction equipment or materials to the project site and does not allow safe manoeuvrability of heavy prefabricated concrete structures or long steel sections.

In contrast, the modular components used for the Sonprayag bridge were shipped in standard ocean containers and then delivered by highly compact and manoeuvrable 6.5 m long trucks.

The structure was completed in an incredible 45 days.

(Content/photos provided by Acrow)

Image: Acrow

Posted on January 16, 2021 by Galvanizers Association

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