Gurugram, Nov. 3 -- Three road infrastructure projects, including two flyovers and an underpass, worth Rs.136.41 crore were approved on Monday to ease congestion at busy intersections in Gurugram, the Gurugram Metropolitan Development Authority (GMDA) said. The high powered works purchase committee (HPWPC), chaired by Haryana chief minister Nayab Singh Saini in Chandigarh, approved flyovers at Dadi Sati Chowk (Sectors 85, 86, 89 and 90) and Ambedkar Chowk (Sectors 45, 46, 51 and 52), and an underpass near Millennium City Centre Metro station (Sectors 27, 29, 43 and 44). The underpass will cost Rs.57 crore, the Ambedkar Chowk flyover Rs.36.36 crore and the Dadi Sati Chowk flyover Rs.43.05 crore. According to GMDA, the six-lane Dadi Sati Chowk flyover will have an overall length of 840 metres, with a 7.5-metre-wide U-turn beneath it, service roads on both sides, two-metre-wide walkways, traffic signals, road markings and streetlighting. The four-lane Ambedkar Chowk flyover on Vikas Marg will have an overall length of approximately 930 metres and is expected to ease traffic movement towards Park Hospital and Arihant Hospital. It will include service and slip roads, two U-turns beneath it, covered drains with footpaths on both sides, traffic signals, road safety features and improved lighting. The Millennium City Centre underpass is intended to decongest the busy junction near the Metro station. It will have approach stretches totalling approximately 1,350 metres - 625 metres towards Iffco Chowk and 725 metres towards Ardee City. The project will include additional U-turns towards both locations, 9.5-metre-wide service roads and 2.5-metre-wide footpaths on both sides. A covered foot overbridge, approximately 300 metres long and equipped with four lifts and escalators, will facilitate pedestrian movement. The project includes grid-connected solar panels and two rainwater harvesting systems. GMDA said all three projects would have a construction period of 18 months each from the date of allotment....