05599500 DATA: Discharge Tables, 2000

BIG MUDDY RIVER BASIN

05599500 BIG MUDDY RIVER AT MURPHYSBORO, IL

LOCATION.-- Lat 37°44'55", long 89°20'45", in SE1/4SE1/4 sec.8, T.9 S., R.2 W., Jackson County, Hydrologic Unit 07140106, on left bank just upstream from Lewis Creek, 0.2 mi upstream from South Twentieth Street Bridge, at Murphysboro, and at mile 36.0.

DRAINAGE AREA.-- 2,169 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: December 1916 to current year (fragmentary prior to 1931).

STAGE: Water years 1997-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1975-92.

SEDIMENT: May 1980 to Sept. 1997.

SPECIFIC CONDUCTANCE: Water years 1975-81.

WATER TEMPERATURE: Water years 1975-81.

REVISED RECORDS.-- WDR IL-79-1: Drainage area.

GAGE.-- Water-stage recorder, crest-stage gage, and phone telemeter. Datum of gage is 335.5 ft above sea level. Prior to June 20, 1931, nonrecording gage at South Twentieth Street Bridge, 1,300 ft downstream, at datum 5 ft lower. June 20, 1931, to July 11,1933, nonrecording gage at upstream side of railroad bridge across mouth of Lewis Creek at present datum. Since Nov. 14, 1973, auxiliary water-stage recorder 7,700 ft upstream. Oct. 6, 1931, to Nov. 13, 1973, auxiliary nonrecording gage read twice daily at same site. Oct. 1, 1995 to Sept. 30, 1999, water-stage recorder at South Twentieth Street Bridge, 1,300 ft downstream, at present datum.

REMARKS.-- Flow regulated since October 1970 by Rend Lake (station 05595950), 67.8 mi upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 33,800 ft³/s from graph based on discharge record, May 2, 1996; maximum gage height, 37.97 ft, May 12, 1961; maximum daily reverse flow, 4,400 ft³/s, June 3, 1947, caused by backwater from Mississippi River; no flow Aug. 13 to Sept. 1, 1936, unaffected by backwater.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,700 mg/L, Feb. 28, 1987; minimum daily, 2 mg/L, Aug. 10, 11, 1993.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 20,500 tons, May 3, 1983; minimum daily, -45 tons, Aug. 6, 1993.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of Feb. 2, 1916, reached a stage of 34.9 ft, present datum, discharge, 28,000 ft³/s.

REMARKS FOR CURRENT YEAR.-- Records good except those greater than 500 ft³/s and those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	46	38	54	64	95	3550	643	977	1700	6520	1060	e470
2	45	30	54	68	89	3150	542	874	1170	5500	1160	e450
3	43	29	59	511	101	2770	467	794	785	4460	940	e440
4	40	27	68	1960	98	2340	416	645	623	3540	1190	e430
5	39	27	84	2150	96	1700	365	507	538	2840	1290	e420

6	39	33	97	1810	92	1100	357	442	454	2250	1470	e400
7	39	39	95	1440	86	745	345	404	392	1680	2420	e390
8	87	43	96	1060	82	569	373	404	362	1350	3340	e400
9	119	44	121	769	83	485	434	751	328	994	3000	e380
10	110	44	664	576	86	404	440	1100	275	824	3040	e360

11	152	42	1070	443	82	366	449	979	247	780	3020	e350
12	112	37	852	347	89	370	433	833	247	1140	2770	e340
13	81	39	793	292	135	385	399	713	279	2550	2430	e330
14	57	43	784	213	356	418	345	604	330	3170	2010	e340
15	41	40	844	177	693	439	294	538	335	3650	1490	e350

16	37	41	516	139	673	513	259	461	401	4100	1010	e340
17	45	41	339	115	601	1010	340	383	5420	3840	754	e320
18	43	41	243	114	1350	1220	340	313	8990	2910	643	e300
19	45	44	167	154	2910	1220	347	319	12100	2250	599	e290
20	57	54	168	214	3160	2590	377	475	14500	2270	649	e280

21	67	56	175	199	3190	3850	374	391	16600	2570	730	e270
22	62	58	131	179	2950	4320	324	324	16800	2800	696	e260
23	52	57	108	167	2500	4570	290	1040	15700	2590	624	e250
24	44	61	92	e145	2060	4460	273	2080	14300	2060	580	e260
25	38	60	77	e130	1630	4100	316	2570	12900	1610	552	e280

26	36	62	71	112	1760	3590	375	2550	11600	1230	535	e330
27	35	65	69	124	3020	2940	416	2860	10500	912	528	371
28	33	64	65	121	3550	2110	480	3080	9750	736	504	439
29	34	59	64	117	3740	1380	773	3090	8840	668	510	449
30	36	56	65	108	---	979	1010	2850	7770	689	498	371

31	39	---	66	98	---	783	---	2320	---	710	e490	---

TOTAL	1753	1374	8151	14116	35357	58426	12596	35671	174236	73193	40532	10660
MEAN	56.5	45.8	263	455	1219	1885	420	1151	5808	2361	1307	355
MAX	152	65	1070	2150	3740	4570	1010	3090	16800	6520	3340	470
MIN	33	27	54	64	82	366	259	313	247	668	490	250

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2000, BY WATER YEAR (WY)
MEAN	459	1483	2079	2537	2901	3770	3987	3510	2130	1006	531	422
MAX	2700	10110	10030	9489	10600	12290	10510	16410	6972	3393	1307	2821
(WY)	1994	1994	1983	1991	1982	1979	1979	1983	1995	1998	2000	1993
MIN	56.5	44.2	74.3	74.7	377	237	289	298	119	131	72.1	43.8
(WY)	2000	1972	1990	1977	1972	1981	1981	1987	1972	1971	1991	1971

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1971 - 2000
ANNUAL TOTAL	751271		466065
ANNUAL MEAN	2058		1273		2062
HIGHEST ANNUAL MEAN					3864	1983
LOWEST ANNUAL MEAN					741	1972
HIGHEST DAILY MEAN	16100	Jan 26	16800	Jun 22	33500	May 2 1996
LOWEST DAILY MEAN	27	Nov 4,5	27	Nov 4,5	-2600 A	Aug 6 1993
ANNUAL SEVEN-DAY MINIMUM	32	Oct 31	32	Oct 31	-1340	Aug 1 1993
INSTANTANEOUS PEAK FLOW			17500 B	Jun 22	33800 C	May 2 1996
INSTANTANEOUS PEAK STAGE			28.83 D	Jun 22	36.88	May 5 1983
INSTANTANEOUS LOW FLOW			25	Nov 4,5
10 PERCENT EXCEEDS	6610		3080		5560
50 PERCENT EXCEEDS	750		410		860
90 PERCENT EXCEEDS	44		45		98

A - Backwater from Mississippi River; lowest daily mean unaffected by backwater, 27 ft³/s, Nov. 4-5, 1999.
B - Gage height, 28.78 ft.
C - From graph based on discharge record, gage height, 36.12 ft.
D - Discharge, 16,800 ft³/s.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data