. Elements of transportation, a discussion of steam railroad electric railway, and ocean and inland water transportation . h decreased until it had a minimum of 4 , Congress, in 1899, provided for the constructionof a 12-foot channel from Troy to deep water in the stream. The large rivers south of the Hudson, the Delaware,Susquehanna, Potomac, and James are also navigable onlyin their tidal portions. The tides extend up these riversto the fall line, somewhat over 100 miles from the Delaware ceases to be navigable just below Trenton;the Susquehanna can be ascended a few mile
. Elements of transportation, a discussion of steam railroad electric railway, and ocean and inland water transportation . h decreased until it had a minimum of 4 , Congress, in 1899, provided for the constructionof a 12-foot channel from Troy to deep water in the stream. The large rivers south of the Hudson, the Delaware,Susquehanna, Potomac, and James are also navigable onlyin their tidal portions. The tides extend up these riversto the fall line, somewhat over 100 miles from the Delaware ceases to be navigable just below Trenton;the Susquehanna can be ascended a few miles above Ilavre-de-Grace; and the falls of the James River are at the cityof Richmond. The Ciiesapeake Bay has numerous armsand tidal affluents which are used by local steamboat lines. The rivers flowing into the Atlantic between the Ches-apeake and central Florida were formerly extensivelynavigated for a distance of 100 to 200 miles from the these streams are now used to some extent, theirchannels are more choked than they formerly were, and tlieefficiency of the railroads lias nuide it unnecessary for \. INLAND WATERS IN THE UNITED STATES 323 comniorce to make as luucli use ui the waterways as itformerly did. Savannah is situated a few miles from thesea, and Jaeksonville is located 27^ miles upstream. Bothof these eities have good channels for ocean shii)ping. The River System of Alabama.—The most important, al-though by no means all of the navigable, rivers enteringthe Gulf between the mouth of the Mississippi and thepeninsula of Florida, converge upon Mobile Bay; and thuslie mainly within the State of Alabama. The short ^lobileRiver is formed by the union of the Alabama and the Tom-bigbee. The Alabama receives the important Coosa River—a stream that is navigable from northern Georgiathrough eastern Alabama. An affluent of the TombigbeeRiver is the Warrior River, the upper reaches of which arecalled the Black Warrior. Birmingham, the center of thecoal and iro
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttranspo, bookyear1920
