Nagpur: Metro’s Phase II expansion towards Transport Nagar has reached a key milestone, with foundation work for the entire 5.33km Reach 4A viaduct completed and track laying underway on a one-kilometre stretch. The section, which is 78% complete, will extend the Aqua Line from Prajapati Nagar and H B Town to Transport Nagar, senior officials said.Reach 4A will have three elevated stations — Pardi, Kapsi Khurd and Transport Nagar. Running along Central Avenue and Bhandara Road, the extension is expected to improve connectivity to Pardi, Kalamna Market, nearby industrial areas and Symbiosis University.With all 596 piles and 127 pile caps completed, construction has progressed to the piers and elevated structure. Of the 199 piers, 190 have been built, while 167 of 197 pier caps or arms are ready. Workers have also cast 1,535 of the planned 1,844 segments, and 136 of the 181 viaduct spans have been erected.Three launching girders — Shivalik, Shikhar and Giri — are being used to install the segmental box girders. Giri completed its assigned erection work in Oct. Shivalik is expected to finish its portion by Jan 2027, while Shikhar is scheduled to complete its work by July 2027.A key feature of Reach 4A is a two-kilometre double-decker viaduct being built over the existing Pardi flyover. The elevated corridor’s construction contract was awarded to Kalpataru Projects International Ltd in Nov 2024. Work began after MahaMetro signed an agreement with the National Highways Authority of India to access the right of way along the Nagpur-Bhandara highway.On the Pardi flyover, Shikhar has erected 1.25km of its 1.95km stretch. The one-kilometre handover for track laying marks the beginning of work on another crucial component of the corridor ahead of its commissioning.