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Gui’an Expressway Expansion Project – Section 12
Project Name
Gui’an Expressway Expansion Project – Section 12 (贵安高速扩容工程十二标)
Location
Pingba District and Xixiu District, Anshun City, Guizhou Province, China .
Function
A critical section of the Shanghai-Kunming National Expressway Guiyang-Anshun Expansion Project. It is a key part of the national expressway network and a major project outlined in the New Guizhou Document No. 2 . The project will be Guizhou Province’s first smart expressway, incorporating a “construction-management-maintenance-operation-service” smart application system .
Key Specs
- Total Length of the whole project: 90.722 km, with a design speed of 100 km/h .
- Section 12 Includes: 9 bridges with a total length of 3,446.2 meters .
- Major Bridges within this section: Leping Bridge (252m, 105 precast T-beams) and Leping Grand Bridge (1,092m, max pier height 54.88m) .
- Precast T-beams: Total of 1,504 beams (20m, 30m, and 40m types) .
- Substructure: 587 piles, 33 pile caps, 349 tie beams, 387 pier shafts, 197 capping beams, and 33 abutments .
Construction & Investment Entities
- Main Contractor: China Railway Shanghai Engineering Bureau Group Co., Ltd. (中铁上海工程局集团) .
- Executing Unit: China Railway Shanghai Engineering Bureau Group Fifth Engineering Co., Ltd. (中铁上海工程局集团第五工程有限公司) .
- Investor: Guizhou Expressway Group (lead investor), along with Guizhou Highway Development Group, China Railway Investment Group, CCCC Construction Group, and China Railway Construction Corporation .
Project Status (as of mid-2026)
All 1,504 T-beams for the section were successfully erected by September 4, 2025 . The entire section’s substructure work was completed by July 4, 2025 . The project is now in the phase of subgrade handover and ancillary works .
