This
plan is most generally followed in the case of large rivers like
* * * * *
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER NO. 92 PL. VI
[Illustration: _A._ DEVASTATION IN HEBREW QUARTER, PATERSON, N. J.]
[Illustration: _B._ A COMMON EXAMPLE OF FLOOD DAMAGE.]
U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER NO. 92 PL. VII
[Illustration: _A._ INUNDATED LANDS AT PASSAIC, N. J.]
[Illustration: _B._ UNDAMAGED BRIDGE ACROSS PASSAIC RIVER AFTER PARTIAL
SUBSIDENCE OF FLOOD.]
* * * * *
the Mississippi, where the contributing area is enormous and the
conservation of the waters would be impracticable even if the nature of
the country would admit of the construction of reservoirs. In
Switzerland, where the torrents occasioned by the rapidly melting snows
are especially destructive, the flood waters are confined by a series of
parallel dikes on each side of the river, which have the effect of
dividing the flow into several parallel streams.
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