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Prospects for 1940
Highways and the Public
Registration of Professional Engineers
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aggregate Airport amount application ashpit asphalt average base bituminous coal bituminous material bituminous surface boilers boot building burner burning carbon Carrying Capacity cent Champaign County cleaning coke combustion concrete construction cost County damper drainage economic elbows Engineering Experiment Station equipment federal feet fire flow Franklin Street Bridge fresh coal fuel bed Fuel Tax funds furnace gases grade gravel hand-fired heater heating Highway Engineering Idlewild Airport ignition improvement inches increase infiltration capacity inlet installed leader pipe Macon County maintenance miles moisture operation pavement plant present problem produced rainfall return-air runoff runway sand secondary roads side-bank method sizes slab smoke density smoke pipe smokeless soil stack standards stoker Street subgrade surface runoff Table temperature tests tion traffic unit University of Illinois vehicles volatile warm-air