05599500 DATA: Discharge Tables, 2002

Station list Available data
BIG MUDDY RIVER BASIN

05599500 BIG MUDDY RIVER AT MURPHYSBORO, IL


LOCATION.-- Lat 37°44'55", long 89°20'45" (NAD of 1927), 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 1994-2002.
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 NGVD of 1929. 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, May 2, 1996, from graph based on discharge record, gage height 36.12 ft; 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 above 500 ft³/s and those for estimated daily discharges, which are poor.

DISCHARGE (SLOPE), in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	90	1580	e4600	2650	e4600	1550	9410	6910	5820	1440	406	191
2	78	990	4750	1830	e6000	1440	8580	6750	5110	e1280	400	181
3	68	654	4720	1320	7280	1520	7740	6450	4390	e1150	384	173
4	63	e525	4520	1040	8340	1710	6840	6070	3740	e1050	370	165
5	78	e440	4120	916	8750	1950	5770	5520	3190	e990	359	153

6	87	e380	3700	870	8350	1980	4950	4940	2900	e930	346	147
7	e78	e335	3500	842	7430	1820	4320	4450	2600	e880	329	149
8	e72	e295	3250	816	6220	1650	3790	e6000	2260	e840	314	148
9	e67	e265	2870	801	5000	e3000	e3400	8960	2110	e800	293	143
10	e64	238	2420	806	4200	e4500	e3200	11000	2100	e760	283	137

11	e350	219	1950	803	3480	5750	e3100	12300	2080	e730	270	131
12	e600	202	1600	803	2800	6620	e3000	13100	2090	e700	258	124
13	1780	191	1990	791	2200	7230	e3600	14300	2210	e680	258	122
14	4080	178	2840	773	1720	7330	e4500	15600	2320	e660	262	122
15	4590	167	3880	749	1410	e7400	e6000	16300	2370	e640	261	120

16	4370	157	e4500	720	1210	7110	7110	17500	2430	e620	234	114
17	4000	149	e6500	690	1110	6890	7570	18200	2460	599	218	118
18	3530	146	9520	659	1040	6620	7590	18100	2440	582	231	127
19	2960	145	13100	637	1030	6640	7080	17800	2250	563	240	141
20	2280	138	15400	621	1810	7650	6180	17000	2110	549	246	158

21	1650	138	16100	631	2750	8800	5500	16200	2000	537	253	199
22	1110	137	15400	639	3170	9600	5090	15200	1810	531	254	199
23	e900	130	14000	651	3240	10400	4930	14000	1460	522	252	176
24	e3000	141	12600	1820	3000	10700	4790	13000	1200	509	244	158
25	e4200	181	11000	2670	2660	10500	4700	12000	1050	487	232	148

26	e4350	242	9340	2600	2310	11100	4540	11100	928	478	230	139
27	4060	500	8040	2520	1960	11500	4660	9990	859	466	226	130
28	3770	1030	6830	2300	1730	11700	5670	8800	817	449	226	144
29	3370	2270	5570	2010	---	11600	6350	7940	1150	433	220	146
30	2870	e3800	4470	1760	---	10900	6660	7200	1440	421	210	137

31	2260	---	3530	2400	---	10200	---	6470	---	412	203	---

TOTAL	60825	15963	206610	39138	104800	207360	166620	349150	69694	21688	8512	4440
MEAN	1962	532.1	6665	1263	3743	6689	5554	11260	2323	699.6	274.6	148.0
MAX	4590	3800	16100	2670	8750	11700	9410	18200	5820	1440	406	199
MIN	63	130	1600	621	1030	1440	3000	4450	817	412	203	114
CFSM	0.90	0.25	3.07	0.58	1.73	3.08	2.56	5.19	1.07	0.32	0.13	0.07

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2002, BY WATER YEAR (WY)
MEAN	495.9	1424	2182	2453	2931	3809	3981	3657	2082	977.2	517.7	411.5
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 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1971 - 2002
ANNUAL TOTAL	594716		1254800
ANNUAL MEAN	1629		3438		2071
HIGHEST ANNUAL MEAN					3864	1983
LOWEST ANNUAL MEAN					741	1972
HIGHEST DAILY MEAN	16100	Dec 21	18200	May 17	33500	May 2 1996
LOWEST DAILY MEAN	63 A	Oct 4	63 A	Oct 4	-2600 B	Aug 6 1993
ANNUAL SEVEN-DAY MINIMUM	73	Oct 4	73	Oct 4	-1340	Aug 1 1993
MAXIMUM PEAK FLOW			19100 C	May 17	33800 D	May 2 1996
MAXIMUM PEAK STAGE			32.73 E	May 18	36.88	May 5 1983
INSTANTANEOUS LOW FLOW			60 A	Oct 4,5
ANNUAL RUNOFF (CFSM)	0.75		1.58		0.95
10 PERCENT EXCEEDS	4300		9450		5600
50 PERCENT EXCEEDS	546		1820		850
90 PERCENT EXCEEDS	182		149		100

	A - May have been less during period of estimated discharges in October.
	B - Backwater from the Mississippi River; lowest daily mean unaffected by backwater, 27 ft³/s, Nov. 4-5, 1999.
	C - Gage height, 32.49 ft.
	D - From graph based on discharge record, gage height, 36.12 ft.
	E - Discharge, 17,800 ft³/s.