Chicago : Engineering and Contracting Pub. Co. · leaf 436
r cent, whilethat of brush remains about the same barges loaded with rock or brush at timesin a tolerably swift current, but generally ina tow up or down in a gentle current for dis-tances ranging from one to possibly 50 miles.The towboats now in use by the UnitedStates and by contractors are stern… … 3D 10- Fig. 4—Cross Section of Closing Dam.
Buildings
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