Chandigarh-Kharar Elevated Road – A Case Study

This paper highlights the concept adopted in planning, design and construction engineering of 3200m long elevated viaduct, which is a part of Chandigarh Kharar Highway project. The deck width for elevated viaduct is 25.6m, which is supported over single pier of 3.5m width. This system was planned so that both level (surface level and elevated level) of road can be utilized for traffic movement. The highway passes through a congested area with 24x7 moving traffic. In the absence of any alternate route, it was required to allow safe and smooth movement of traffic on existing road during the construction period. In order to work efficiently in restricted area, it was proposed to have maximum offsite activities and minimum on-site activities. This was achieved by proposing maximum bridge components as pre-cast elements. The structural system proposed a good example, where pre-cast technology is used massively for construction of bridge. Integral connection between substructure and superstructure not only makes the construction safe and sustainable, but also makes it aesthetically pleasing.

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