Rapid Construction of Dhansiri Bridge
Dr. V K Yadav, VSM, CE, DDG (Bridges & Tunnels), Col RK Sharma, Jt Director, (Bridges), HQ. DGBR, New Delhi
The army convoys originating from Rangapahar Army Cantonement (Dimapur, Nagaland) and proceeding towards NH-39, perforce had to pass through built up area of Dimapur town, causing avoidable inconvenience to the free and quick movement of the civil traffic. The HQ Eastern Command had projected the requirement of a free and direct route from Rangapahar Cantonement to NH-39. Keeping the important operational aspects in view, the improvement of the existing PWD road along Dimapur an Army bypass was included in the BRDB programme accordingly. River Dhansiri was a major water obstacle along this road alignment, with no crossing arrangement except through private boat/ferry services.
Figure 1: Site Plan
River Dhansiri experiences heavy discharge during rainy season. In the vicinity of this bridge site a 72 m span permanent railway bridge constructed during the British period, had been washed away in the past due to heavy river discharge. A permanent bridge was a basic necessity to effect a permanent road crossing over this river. The proposal to construct a 120 m span high level major permanent bridge along the existing PWD alignment, was accordingly approved for construction. This work was to be executed by the 89 RCC of 15 BRTF in the Project Sewak. Some of the salient features and technical specifications for this bridge were as under :-
The army convoys originating from Rangapahar Army Cantonement (Dimapur, Nagaland) and proceeding towards NH-39, perforce had to pass through built up area of Dimapur town, causing avoidable inconvenience to the free and quick movement of the civil traffic. The HQ Eastern Command had projected the requirement of a free and direct route from Rangapahar Cantonement to NH-39. Keeping the important operational aspects in view, the improvement of the existing PWD road along Dimapur an Army bypass was included in the BRDB programme accordingly. River Dhansiri was a major water obstacle along this road alignment, with no crossing arrangement except through private boat/ferry services.
Figure 1: Site PlanRiver Dhansiri experiences heavy discharge during rainy season. In the vicinity of this bridge site a 72 m span permanent railway bridge constructed during the British period, had been washed away in the past due to heavy river discharge. A permanent bridge was a basic necessity to effect a permanent road crossing over this river. The proposal to construct a 120 m span high level major permanent bridge along the existing PWD alignment, was accordingly approved for construction. This work was to be executed by the 89 RCC of 15 BRTF in the Project Sewak. Some of the salient features and technical specifications for this bridge were as under :-
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NBM&CW September 2007
