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The 11th Contract Section of Civil Engineering of Tongping Expressway in Hunan Province
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Tongping Expressway is the first longitudinal section of the "seven vertical and nine horizontal" expressways planned by Hunan Province and the first section of Pingru Expressway. The main line is a two-way four-lane, with a design speed of 100 kilometers per hour, and a subgrade width of 26 meters; the contract section is 5.9km in length, 2.68 million m³ of subgrade filling and excavation, 781.32m/4 bridges, 69 culverts and passages, 1 stable interchange, stable One connection line and one Anding service area.
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