ted by public
economy or general expediency.

GENERAL CONCLUSIONS.

1. Great floods in the Passaic Basin arise only after a specially
violent precipitation.

2. Under present conditions floods may be expected at frequent
intervals.

3. A part of the damage along the lower valley is the result of
encroachments on the part of individuals and public and private
corporations.

4. The channel in the lower valley may be improved at certain points by
straightening it and judiciously making cut-offs.

5. Without the construction of numerous levees the lower valley channel
can not be made to carry great flood waters without damage.

6. Immunity from floods can be effected only by the construction of
catchment reservoirs in the highlands or levees in the lowlands.

7. Levee construction would involve more damage than is now caused by
floods, and the cost thereof would be prohibitive.

8. Flood catchment reservoirs may be constructed economically and
provide storage to compensate for the dry-season flow, thereby
maintaining water power at Paterson, Passaic, and other points, and
providing for municipal water supply in the future.

INDEX.

Arch street bridge, Paterson, destruction of; 27

Beattie's dam, flood flow at; 16-17
flood period at; 9
view of; 16

Bridges, destruction of; 26-27

Capacity of streams, increase in; 28

Central Basin, damage in; 24
flood in, descent of; 14-15

Charlotteburg, rainfall at; 11, 12

Chatham, flood period at; 10

Chester, rainfall at; 11

Cranberry Pond, dam at, failure of; 24

Damages, discussion of; 23-28

Darlington, reservoir site at; 33

Dixons Pond, reservoir site at; 37

Dover, rainfall at; 11, 12

Drought, relation of rainfall to; 12

Dundee dam, flood flow over; 17-22
flood flow over, diagram showing; 20
flood period at; 9
floods at, comparison of, figure showing; 18

East Jersey Water Company, damage at pumping station of; 25-26

Elizabeth, rainfall at; 11

Essex Fells, rainfall at; 11, 12

Flood, descent of; 14-22
period of; 9-10
prevention of; 28-44

Flood damage, plates showing; 26, 28

Floods, general conclusions concerning; 44-45

Great Passaic Swamp, reservoir site at; 38-39

Great Piece reservoir, cost of, estimate of; 42

Greenwood Lake, use of; 34

Hanover, rainfall at; 11

Hebrew quarter, Paterson, devastation in, plate showing; 28

Highland tributaries, damages along; 23-2