. m. to 6 a. m. 5,749,000

24, 6 a. m. to 6 p. m. 5,615,000

FLOOD AT BEATTIE'S DAM, LITTLE FALLS.

The flow over Beattie's dam at Little Falls, has been calculated
according to coefficients used for the same dam in Water-Supply Paper
No. 88. Recorded gage heights show that over the main dam there was a
maximum depth of 11.12 feet, which continued from 2 to 8 p. m., on
October 10, representing a maximum flow of 31,675 cubic feet per second.
(See Pl. I, A.) In the following table is set forth the flow of the
river over Beattie's dam during the flood, and for purposes of
comparison, the figures for the flood period of March, 1902. It should
be borne in mind in consulting this table, that in the case of the flood
of 1903 exact dates and hours are given, while the figures for the 1902
flood represent flow determinations at six-hour intervals, beginning
with the initial rise of that flood.

* * * * *

U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER NO. 92 PL. I

[Illustration: _A._ BEATTIE'S DAM, LITTLE FALLS, N. J., IN FLOOD.]

[Illustration: _B._ FLOOD-WATER LINES IN RESIDENCE DISTRICT, PATERSON,
N. J.]

* * * * *

_Flood flow over Beattie's dam during floods of 1902 and 1903._

-----------------+------------+------------+
Date and hour. | 1903. | 1902.[A] |
-----------------+------------+------------+
| Sec.-feet. | Sec.-feet. |
Oct. 8. 12 p.m | 1,645 | 490 |
9. 6 a.m. | 4,235 | 700 |
12 m. | 8,560 | 1,350 |
6 p.m. | 15,755 | 2,120 |
12 p.m. | 23,927 | 3,540 |
10. 6 a.m. | 28,370 | 4,250 |
12 m. | 31,305 | 4,600 |
6 p.m. | 31,675 | 5,000 |
12 p.m. | 30,770 | 6,500 |
11. 6 a.m. | 29,840 | 7,600 |
12 m. | 28,950 | 8,250 |
6 p.m. | 26,960 | 9,000 |
12 p.m. | 25,530 | 10,200 |
12. 6 a.m. | 24,435 | 11,450 |
12 m. | 22,625 | 14,700 |
6 p.m. | 20,810 | 18,150 |
12 p.m. | 18,655 | 20,650 |
13. 6 a.m. | 17,930 | 22,200 |
12 m. | 16,190 | 22,700 |
6 p.m. | 14,900 | 23,400 |
12 p.m. | 13,615 | 23,300 |
14. 6 a.m. | 12,340 | 22,950 |