Circular, Τεύχη 16-21

aggregate applied asphaltic concrete AWWA basalt base material beam bridge channel chlorine City Civil Engineering clay coefficient concrete construction Corvallis cost County Engineer county road county surveyor culvert barrel discharge drainage Electrical elevation emulsified Engineering Experiment Station equipment F. O. McMillan factors feet flood flow friction gaging gallons grade head loss Highway Department highway engineer hydraulic inches Industrial Journal kaolinite lamp land Lane County lighting load maximum methods miles model studies Northwest Conference operation Oregon Revised Statutes Oregon standard inlet Oregon State College pipe plat Portland precast pressure problem procedure pump records Reprinted Research resistance result rock S. H. Graf Sand Equivalent shear slide soil solution Standard Specifications steel stream street stress structure surface survey tion traffic Twenty-five cents Umatilla County units University of Washington valve velocity Washington