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, 2 mi south of Merom, 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, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 3000 | 3100 | 3380 | 4600 | 2800 | 5940 | 8390 | 4880 | 13400 | 4690 | e22200 | 17900 |
2 | 2900 | 3070 | 3120 | 6240 | 2790 | 6140 | 11600 | 4730 | 14000 | 4680 | e19200 | 29700 |
3 | 2930 | 3050 | 3000 | 7890 | 2810 | 6120 | 11700 | 4470 | 13800 | 4610 | e17300 | 33900 |
4 | 2870 | 2960 | 2940 | 11300 | 2980 | 5850 | 9800 | 4760 | 12400 | 4390 | e15800 | 37300 |
5 | 2710 | 2870 | 2810 | 13000 | 3620 | 5960 | 8120 | 6480 | 10500 | 4280 | e15400 | 40600 |
6 | 2640 | 2860 | 2660 | 12400 | 4910 | 5930 | 7160 | 11800 | 9280 | 4140 | e16900 | 43200 |
7 | 2640 | 2920 | 2450 | 11000 | 5580 | 6940 | 7500 | 19300 | 8600 | 13500 | e17400 | 44700 |
8 | 2630 | 2980 | 2190 | 9430 | 5740 | 7360 | 11400 | 23000 | 8000 | 23800 | e16300 | 44800 |
9 | 2640 | 3130 | 2090 | 7760 | 5860 | 7210 | 13900 | 24500 | 7400 | 27000 | e14900 | 43300 |
10 | 2590 | 3160 | 2230 | 6460 | 5600 | 9510 | 14500 | 25200 | 6920 | 30500 | e14700 | 39000 |
11 | 2550 | 3340 | 2320 | 6610 | 5160 | 13400 | 13900 | 31400 | 6710 | 34600 | e14600 | 31700 |
12 | 2600 | 4340 | 2380 | 6960 | 4790 | 15300 | e12500 | 34400 | 6990 | 42900 | e13800 | 25300 |
13 | 2600 | 5500 | 2300 | 6520 | 4470 | 15900 | e11000 | 37700 | 6840 | 54800 | e12800 | 20300 |
14 | 2580 | 5290 | 2210 | 7250 | 4040 | 16100 | e9660 | 41800 | 9060 | 71800 | 11800 | 16800 |
15 | 2570 | 5490 | 2240 | 7400 | 4070 | 18600 | e8380 | 45900 | 14600 | 88200 | 11100 | 14900 |
16 | 2520 | 5980 | 2290 | 6370 | 4610 | 20500 | e7360 | 48900 | 20500 | 95500 | 10700 | 13800 |
17 | 2470 | 5720 | 2260 | 5470 | 4210 | 21400 | 6670 | 49700 | 22300 | 96700 | 10600 | 12700 |
18 | 2390 | 5210 | 2220 | 4400 | 3970 | 21700 | 6240 | 48800 | 20100 | 93900 | 10400 | 11100 |
19 | 2390 | 4710 | 2520 | 3450 | 3870 | 21700 | 5880 | e46700 | 17000 | 89000 | 9920 | 9380 |
20 | 2430 | 4400 | 2870 | 3030 | 3650 | 21000 | 5570 | e44000 | 14700 | e80900 | 9630 | 8530 |
21 | 2630 | 4010 | 2950 | 3000 | 4510 | 19200 | 5530 | e40000 | 12900 | e72700 | 9370 | 7950 |
22 | 2900 | 3650 | 3600 | 2990 | 5720 | 16700 | 5380 | e33900 | 11100 | e65500 | 8780 | 7830 |
23 | 2920 | 3520 | 4030 | 3040 | 8400 | 14500 | 5300 | e27600 | 9480 | e58800 | 8040 | 7760 |
24 | 2930 | 3560 | 6260 | 3280 | 8900 | 13600 | 5150 | e23400 | 8470 | e53000 | 7410 | 7430 |
25 | 2920 | 3580 | 7430 | 3270 | 8400 | 13900 | 5300 | e19800 | 7720 | e48400 | 7110 | 7160 |
26 | 2890 | 3440 | 6580 | 3170 | 7080 | 14200 | 6010 | e17300 | 6870 | e44800 | 7030 | 8690 |
27 | 2900 | 3360 | 5490 | 3130 | 6110 | 12400 | 6080 | e15700 | 6140 | e41800 | 6660 | 14100 |
28 | 2920 | 3510 | 4690 | 3040 | 5650 | 10500 | 5910 | e14600 | 5610 | e39400 | 6260 | 21700 |
29 | 3060 | 3570 | 4130 | 2910 | --- | 9230 | 5660 | e13900 | 5210 | e35000 | 6020 | 26300 |
30 | 3160 | 3550 | 3720 | 2860 | --- | 8200 | 5190 | 13400 | 4920 | e29500 | 5900 | 28000 |
31 | 3130 | --- | 3660 | 2810 | --- | 7500 | --- | 13400 | --- | e25800 | 8090 | --- |
TOTAL | 85010 | 115830 | 103020 | 181040 | 140300 | 392490 | 246740 | 791420 | 321520 | 1384590 | 366120 | 675830 |
MEAN | 2742 | 3861 | 3323 | 5840 | 5011 | 12660 | 8225 | 25530 | 10720 | 44660 | 11810 | 22530 |
MAX | 3160 | 5980 | 7430 | 13000 | 8900 | 21700 | 14500 | 49700 | 22300 | 96700 | 22200 | 44800 |
MIN | 2390 | 2860 | 2090 | 2810 | 2790 | 5850 | 5150 | 4470 | 4920 | 4140 | 5900 | 7160 |
CFSM | 0.21 | 0.29 | 0.25 | 0.44 | 0.38 | 0.96 | 0.62 | 1.94 | 0.81 | 3.39 | 0.90 | 1.71 |
IN. | 0.24 | 0.33 | 0.29 | 0.51 | 0.40 | 1.11 | 0.70 | 2.24 | 0.91 | 3.91 | 1.03 | 1.91 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2003, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 5195 | 7347 | 10800 | 13570 | 17120 | 20700 | 20960 | 17800 | 13980 | 9749 | 5919 | 4827 |
MAX | 26610 | 39340 | 39250 | 80210 | 54530 | 60520 | 41840 | 68010 | 45640 | 44660 | 23680 | 25370 |
(WY) | 2002 | 1993 | 1986 | 1950 | 1950 | 1982 | 1957 | 1943 | 1958 | 2003 | 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 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1940 - 2003 | |||
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ANNUAL TOTAL | 5573710 | 4803910 | ||||
ANNUAL MEAN | 15270 | 13160 | 12300 | |||
HIGHEST ANNUAL MEAN | 24340 | 1950 | ||||
LOWEST ANNUAL MEAN | 3206 | 1941 | ||||
HIGHEST DAILY MEAN | 85600 | May 17 | 96700 | Jul 17 | 200000 | May 21 1943 |
LOWEST DAILY MEAN | 2090 | Dec 9 | 2090 | Dec 9 | 858 | Sep 27 1941 |
ANNUAL SEVEN-DAY MINIMUM | 2250 | Dec 8 | 2250 | Dec 8 | 870 | Sep 25 1941 |
MAXIMUM PEAK FLOW | 97100 | Jul 17 | 201000 | May 21 1943 | ||
MAXIMUM PEAK STAGE | 23.61 | Jul 17 | 29.36 | May 21 1943 | ||
ANNUAL RUNOFF (CFSM) | 1.16 | 1.00 | 0.93 | |||
ANNUAL RUNOFF (INCHES) | 15.75 | 13.58 | 12.70 | |||
10 PERCENT EXCEEDS | 36900 | 34100 | 30000 | |||
50 PERCENT EXCEEDS | 7130 | 7030 | 7220 | |||
90 PERCENT EXCEEDS | 2640 | 2840 | 2270 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |