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中国 天津 预定 Road construction | 价值  ,中国 天津 Road construction 的信息,A And Foreign Countries Jianfazhan Ltd.. 道路建筑 | Allbiz
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    中国 天津 预定 Road construction | 价值  ,中国 天津 Road construction 的信息,A And Foreign Countries Jianfazhan Ltd.. 道路建筑 | Allbiz
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    中国 天津 预定 Road construction | 价值  ,中国 天津 Road construction 的信息,A And Foreign Countries Jianfazhan Ltd.. 道路建筑 | Allbiz
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    分享   ID: 87288:1333
    介绍
    Roads are designed and built for primary use by vehicular and pedestriantraffic. Storm drainage and environmental considerations are a major concern. Erosion and sediment controls are constructed to prevent detrimental effects. Drainage lines are laid with sealed joints in the road easement with runoff coefficients and characteristics adequate for the land zoning and storm water system. Drainage systems must be capable of carrying the ultimate design flow from the upstream catchment with approval for the outfall from the appropriate authority to a watercourse, creek, river or the sea for drainage discharge.[25](page38 to 40)
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