LOCATION.-- Lat 39°01'13", long 87°34'07" (NAD of 1927), in NE1/4SW1/4 sec.30, T.7 N., R.10 W., Sullivan County, Hydrologic Unit 05120111, (MEROM, IN-IL. quadrangle), on left bank at downstream side of Illinois Central Railroad bridge at Riverton, 0.5 mi downstream from Turtle Creek, and at mile 162.0. |
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DRAINAGE AREA.-- 13,161 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1938 to current year. Prior to April 1939 monthly discharge only, published in WSP 1305. |
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STAGE: June 1911 to December 1914 available in the U.S. Army Corps of Engineers office, Louisville, Ky. |
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REVISED RECORDS.-- WSP 1335: 1939, 1950. WDR IN-73-1: Drainage area. |
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GAGE.-- Water-stage recorder. Datum of gage is 414.65 ft above NGVD of 1929. Prior to July 17, 1951, nonrecording gage at same site and datum. |
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REMARKS.-- Flow partially regulated by upstream reservoirs. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 201,000 ft3/s, May 21, 1943, gage height 29.36 ft; minimum daily discharge, 858 ft3/s, September 27, 1941. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of March 28, 1913, reached a stage of 26.4 ft, from graph based on once daily readings by Illinois Central Railroad Co., discharge, 250,000 ft3/s. |
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REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. |
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 3810 | 44100 | 15700 | 12200 | 20200 | 17700 | 28400 | 40400 | 23700 | 9960 | 4340 | 5250 |
2 | 3590 | 41300 | 18300 | 10900 | 28500 | 16100 | 30000 | 45400 | 23100 | 9510 | 4320 | 4670 |
3 | 3470 | 34200 | 22200 | 10200 | 30700 | 16800 | 31900 | 47100 | 21800 | 8950 | 4510 | 4350 |
4 | 3450 | 27000 | 24100 | 9740 | 33300 | 20000 | 33800 | 46900 | 19600 | 8350 | 4470 | 4060 |
5 | 3290 | 23000 | 24600 | 9490 | 36300 | 23100 | 35500 | 45400 | 17100 | 7770 | 4810 | 3770 |
6 | 3090 | 20500 | 23900 | 9600 | 39700 | 24800 | 36900 | 44700 | 15400 | 7130 | 4660 | 3570 |
7 | 2920 | 18800 | 21000 | 9660 | 42900 | 25500 | 37600 | 45800 | 16400 | 6660 | 4220 | 3390 |
8 | 3140 | 17500 | 17400 | 9330 | 44700 | 25000 | 37500 | 48900 | 19000 | 6080 | 3750 | 3280 |
9 | 4110 | 16600 | 14800 | 8880 | 44400 | 26000 | 35400 | 52000 | 19300 | e5580 | 3320 | 3200 |
10 | 5960 | 16000 | 13200 | 8460 | 42200 | 28800 | 32000 | 53900 | 17800 | e5230 | 3140 | 3040 |
11 | 7230 | 15500 | 11900 | 8230 | 36800 | 29200 | 30700 | 53700 | 16100 | 5250 | 3080 | 2860 |
12 | 9600 | 15000 | 10500 | 7900 | 29000 | 30200 | 30400 | 51800 | 15700 | 5710 | 2880 | 2780 |
13 | 13700 | 14600 | 10300 | 7610 | 24100 | 30800 | 31300 | 61600 | 18100 | 5960 | 2730 | 2700 |
14 | 25400 | 14300 | 12100 | 7480 | 20500 | 30800 | 32600 | 68700 | 18600 | 5500 | 2670 | 2660 |
15 | 30100 | 13600 | 16300 | 7350 | 17700 | 29300 | 34100 | 72700 | 19500 | 5110 | 2630 | 2610 |
16 | 31700 | 12200 | 17600 | 7270 | 15400 | 27800 | 35700 | 80300 | 19900 | 4730 | 2600 | 2520 |
17 | 33900 | 10900 | 26500 | 7050 | 13800 | 25700 | 37000 | 85600 | 18500 | 4480 | 2700 | 2470 |
18 | 36700 | 10100 | 32500 | 6840 | 12800 | 22700 | 37500 | 84500 | 16000 | 4540 | 2830 | 2500 |
19 | 39900 | 9330 | 34800 | 6600 | 12000 | 20000 | 37000 | 79100 | 13900 | 4340 | 2970 | 2470 |
20 | 42900 | 9000 | 36800 | 6450 | 12900 | 18800 | 34400 | 72300 | 12200 | 4280 | 5370 | 2540 |
21 | 45300 | 9000 | 38900 | 6270 | 20000 | 17800 | 30400 | 65500 | 11200 | 4190 | 19100 | 2630 |
22 | 46700 | 8940 | 40500 | 6210 | 26500 | 16400 | 31500 | 59000 | 10600 | 4250 | 20200 | 2710 |
23 | 47100 | 9070 | 41800 | 6170 | 28500 | 15000 | 31900 | 53300 | 9970 | 4250 | 14900 | 2960 |
24 | 48100 | 9370 | 42100 | 6160 | 29700 | 13800 | 29700 | 48300 | 9500 | 4670 | 13800 | 3460 |
25 | 49100 | 9680 | 41400 | 6030 | 30500 | 16500 | 28100 | 43000 | 9220 | 4740 | 20200 | 3440 |
26 | 48600 | 9700 | 38800 | 5960 | 29100 | 21300 | 27000 | 37300 | 8870 | 5160 | 18700 | 3180 |
27 | 47400 | 9570 | 32100 | 5890 | 25000 | 20500 | 25400 | 31300 | 8940 | 4920 | 14800 | 3100 |
28 | 46700 | 9540 | 25800 | 5790 | 20700 | 19600 | 30100 | 27900 | 11400 | 4220 | 11500 | 3020 |
29 | 46300 | 9970 | 21600 | 5720 | --- | 19900 | 33900 | 26600 | 11900 | 3940 | 8570 | 2970 |
30 | 46100 | 13300 | 18000 | 5820 | --- | 22200 | 36800 | 24300 | 11000 | 4110 | 7030 | 2950 |
31 | 45500 | --- | 14700 | 7130 | --- | 26200 | --- | 23100 | --- | 4490 | 6090 | --- |
TOTAL | 824860 | 481670 | 760200 | 238390 | 767900 | 698300 | 984500 | 1620400 | 464300 | 174060 | 226890 | 95110 |
MEAN | 26610 | 16060 | 24520 | 7690 | 27420 | 22530 | 32820 | 52270 | 15480 | 5615 | 7319 | 3170 |
MAX | 49100 | 44100 | 42100 | 12200 | 44700 | 30800 | 37600 | 85600 | 23700 | 9960 | 20200 | 5250 |
MIN | 2920 | 8940 | 10300 | 5720 | 12000 | 13800 | 25400 | 23100 | 8870 | 3940 | 2600 | 2470 |
CFSM | 2.02 | 1.22 | 1.86 | 0.58 | 2.08 | 1.71 | 2.49 | 3.97 | 1.18 | 0.43 | 0.56 | 0.24 |
IN. | 2.33 | 1.36 | 2.15 | 0.67 | 2.17 | 1.97 | 2.78 | 4.58 | 1.31 | 0.49 | 0.64 | 0.27 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 5234 | 7403 | 10910 | 13690 | 17310 | 20830 | 21160 | 17680 | 14040 | 9195 | 5825 | 4547 |
MAX | 26560 | 39340 | 39250 | 80210 | 54530 | 60520 | 41840 | 68010 | 45640 | 36240 | 23680 | 25370 |
(WY) | 2002 | 1993 | 1986 | 1950 | 1950 | 1982 | 1957 | 1943 | 1958 | 1957 | 1958 | 1989 |
MIN | 1382 | 1437 | 1213 | 1318 | 2058 | 2763 | 5623 | 3435 | 2601 | 1968 | 1215 | 1261 |
(WY) | 1957 | 1954 | 1964 | 1977 | 1963 | 1941 | 2000 | 1941 | 1977 | 1988 | 1941 | 1940 |
SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1940 - 2002 | |||
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ANNUAL TOTAL | 5042140 | 7336580 | ||||
ANNUAL MEAN | 13810 | 20100 | 12290 | |||
HIGHEST ANNUAL MEAN | 24340 | 1950 | ||||
LOWEST ANNUAL MEAN | 3206 | 1941 | ||||
HIGHEST DAILY MEAN | 49100 | Oct 25 | 85600 | May 17 | 200000 | May 21 1943 |
LOWEST DAILY MEAN | 2430 | Aug 18 | 2470 | Sep 17 | 858 | Sep 27 1941 |
ANNUAL SEVEN-DAY MINIMUM | 2560 | Aug 13 | 2530 | Sep 15 | 870 | Sep 25 1941 |
MAXIMUM PEAK FLOW | 86400 | May 17 | 201000 | May 21 1943 | ||
MAXIMUM PEAK STAGE | 22.81 | May 17 | 29.36 | May 21 1943 | ||
ANNUAL RUNOFF (CFSM) | 1.05 | 1.53 | 0.93 | |||
ANNUAL RUNOFF (INCHES) | 14.25 | 20.74 | 12.68 | |||
10 PERCENT EXCEEDS | 33900 | 44200 | 30000 | |||
50 PERCENT EXCEEDS | 9570 | 16000 | 7220 | |||
90 PERCENT EXCEEDS | 3860 | 3360 | 2260 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |