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S221(原S307)鹽源縣瀘沽湖過境改線工程對瀘沽湖風景名勝區影響專題論證報告

項目概況

路線全長20.739km,設計速度為30km/h,兩車道,路基寬度7.5m,瀝青砼路面。工程設隧道620m/1座、橋梁50m/1座、涵洞1035m/52道、橋隧比2.95%。


項目總投資

2.59億元


審批部門

四川省住房和城鄉建設廳



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