The project is the Laiyuan-Laishui section of Laiyuan-Quyang Expressway (part of Zhangjiakoiu-Shijiazhuang Expressway), i.e. the N8 section, covering the piles from K48+024.627 to K57+600.700. The project is 9,576.073m long, including the road base, bridge culverts, tunnels and drainage facilities, etc.
The project consists of 6 bridges, 12 culverts, 2 tunnels, 1 interchange, 1 overpass, 2 flyovers, and 3 channels.
Technical index: 4-lane expressway standard for hilly areas
Technical economy index:
1). bidirectional 4-lane, driving speed 100Km/h; road base width 26m, driveway width 2×3.75m; min. Radius of horizontal curve 915.101m; minimum slope length 300m.
2). The bridge culvert is as wide as the road base. Designed load: I grade highway. The tunnel is as wide as the road base.