Anji Khad Cable Stay Railway Bridge, Project USBRL-All cables installed in position
By CPRO Office Kolkata Metro Rail
The Anji Khad Bridge is an engineering marvel built in extreme geographical conditions. It is the “first cable-stayed bridge” on Indian Railway connecting Katra to Reasi in Jammu & Kashmir on the Udhampur-Srinagar-Baramulla Railway Line project.
This asymmetrical cable-stayed bridge crosses the deep gorges of Anji River, a tributary of river Chenab. The bridge connects Tunnel T2 on the Katra side and Tunnel T3 on the Reasi side.
The total length of the bridge is 725 m which includes a 473 m long asymmetric cable stay bridge balanced on the axis of a central pylon of height 193m from the top of the foundation, standing at a height of 331 meters above the river bed. The cable stay bridge has 290 m span on the north side (Katra Side) while a 183 m span on the south side (Reasi Side). The bridge has a single-line railway track and a 3.75m wide service road.
The strands for this bridge is specifically designed with a 15.7 mm diameter and has three layers of protection i.e. Zinc coated, wax-filled plus PU / HDPE cover over the strands. The cable length ranges between a minimum of 80 m up to 295 m as a maximum. The stay cables are composed of 31, 37 or 43 strands.
Anji Cable Stay bridge is designed with total of 96 cables i.e. 48 cables each on the Lateral and Central spans. The cables totally weigh 848.7 MT and the total length of cable strands involved is 653 km.
All 96 cables are fully installed today i.e. on 26th April,2023, in the record time period of 11 months (June’2022 to April 2023) in spite of all constraints.
As on date, 44 segments out of total of 47 segments have been launched which required the support of stay cables. Now, the balance three segments shall be launched without stay cables as per design. The launching of superstructure shall be completed in May’23.