Synopsis
A 6.6km long elevated expressway has been built along an existing route in a busy part of Tehran. The main requirements of the client, the Municipality of Tehran, were rapid construction and minimum disturbance to the existing traffic below. The main requirements of the design-and-build contractor, SR Special Group, from the design team, Karane Consulting Engineers, were buildability and cost-effectiveness. This paper describes the design and construction of this elevated expressway.