Work is going on the flyover at Thirumangalam on Jawaharlal Nehru Salai. It is expected to be ready by June 2015.
Sources in the highways department said they had been waiting for Metro Rail tunnelling work to be completed on the stretch.
The core of the flyover, with 21 deck slabs and an approach ramp on Anna Nagar West side, has already been completed. Work has now commenced on the ramp on the Koyambedu side.
Work on the 896-metre-long flyover had been slated to be finished by June 2014 but was delayed due to a change in the design. The flyover, once completed, will help in smooth traffic flow at two intersections — Anna Nagar Second Avenue and Thirumangalam Main Road junction on Jawaharlal Nehru Salai.