The National Capital Region Transport (NCRTC) has completed the installation of all six special steel spans to cross the Gazipur drain and Kondli roundabout from New Ashok Nagar towards Anand Vihar for the Delhi section of the Rapid Rail Transit System (RRTS) corridor. These steel spans have been installed one after the other, making it the only place on the entire RRTS corridor where such a long viaduct is being constructed with special steel spans.
The combined length of these six special steel spans is around 360 meters. RRTS corridor coming from Sarai Kale Khan and moving parallelly towards Gazipur Drain, has now crossed over the drain with the installation of these six steel spans. Out of these 6 special steel spans, the length of 3 spans is approximately 70 meters long each with each weighing 540 tonnes and the remaining 3 are 50 meters long each with each weighing 540 tonnes. These special steel spans are about 14 meters wide.
“The installation of the steel span near the Ghazipur drain, which is about 40 to 50 meters wide was a challenging task because it flows diagonal to the alignment of the RRTS corridor. Due to the flowing drain, the deep foundation for the pillars had to be made in the drain. Moreover, existing structures of PWD roads and large DJB pipelines created hindrances and high-capacity cranes had to be used for the construction of the foundation. The site was also in the close vicinity of the high-tention EHT lines, adding to the challenges.
Despite these difficult situations, Team NCRTC completed it successfully following all the norms and taking all the precautions,” the NCRTC said in a statement.