The upgrading and reconstruction project for Baofeng Road and Qiaokou Road begins from Jinghan Avenue (approach bridge on the Hankou bank of Fourth Han River Bridge) in the south and ends at Jianshe Avenue; the road is 1,400 metres long. The bridge projects includes about 660-metre flyover at Qiaokou Road, which is a single-level & two-separate-deck-parts bridge; the flyover at Baofeng Road is about 780 metres, and it is of a 2-level and one-piece-deck structure; a flyover at Jiefang Avenue is about 860 metres long; the 6 ramps at Baofeng Road form interconnected flyover; and total about 1,670 metres long; a footbridge spanning Jiefang Avenue is built. The steel structure works mainly include 22 trunk bridges, 19 ramp bridges and 1 footbridge. The works total 29,000 tons.