07010000 DATA: Discharge Tables, 2003

Station list Available data
LOWER MISSISSIPPI RIVER BASIN

07010000 MISSISSIPPI RIVER AT ST. LOUIS, MO


LOCATION.-- Lat 38°37'44", long 90°10'47" (NAD of 1927), Hydrologic Unit 07140101, on downstream side of west pier of Eads Bridge at St. Louis, 15.0 mi downstream from Missouri River, 19.2 mi upstream from Meramec River, and at mile 180.0 above the Ohio River.

DRAINAGE AREA.-- 697,000 mi², approximately.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: January 1861 to current year. Monthly discharge only for some periods, published in WSP 1311.
	STAGE: March 1933 to current year in reports of the U.S. Geological Survey. Since January 1861, in reports of Mississippi River Commission. Since January 1890, in reports of the National Weather Service.
SURFACE-WATER QUALITY
	SEDIMENT: April 1948 to current year.

REVISED RECORDS.-- WDR MO-76-1: Drainage area, WDR MO-98-1: Extreme outside period of record.

GAGE.-- Water-stage recorder, National Weather Service gage-height and U.S. Army Corps of Engineers satellite telemeters at station. Datum of gage is 379.94 ft above NGVD of 1929. Prior to May 5, 1934, nonrecording gage 0.4 mi downstream; May 5, 1934 to Dec. 9, 1952, water-stage recorder at site 20 ft downstream at present datum.

REMARKS.-- Natural flow of stream affected by many reservoirs and navigation dams in upper Mississippi River Basin and by many reservoirs and diversions for irrigation in Missouri River Basin.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,080,000 ft³/s, August 1, 1993, gage height, 49.58 ft; minimum discharge, 27,800 ft³/s, December 12, 1937.
SEDIMENT CONCENTRATIONS: Maximum daily mean, 6,720 mg/L, Feb. 24, 1985; minimum daily mean, 19 mg/L, Jan. 21 and 22, 1967.
SEDIMENT LOADS: Maximum daily, 9,830,000 tons, Feb. 24, 1985; minimum daily, 2,800 tons, Jan. 21, 1967.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of June 27, 1844, reached a stage of 41.32 ft, from floodmarks, discharge, 1,000,000 ft³/s, computed by U.S. Army Corps of Engineers. Flood in April 1785 may have reached a stage of 42.0 ft. Minimum flow, 18,000 ft³/s, Dec. 23, 1863.

REMARKS FOR CURRENT YEAR.--Records good except those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	97700	130000	92400	84100	60800	75800	119000	224000	255000	159000	134000	88700
2	98000	123000	93900	85300	61900	77600	112000	227000	242000	159000	129000	126000
3	109000	120000	89900	83000	64600	78700	111000	232000	230000	169000	123000	102000
4	108000	122000	89500	77900	65200	78600	108000	241000	214000	177000	115000	118000
5	126000	119000	83400	77100	63600	77300	112000	270000	202000	176000	111000	121000

6	124000	126000	71400	77700	60700	75900	117000	307000	191000	174000	114000	101000
7	129000	120000	71800	75700	65900	76500	124000	311000	190000	173000	107000	86300
8	130000	121000	73400	75100	64200	78300	121000	321000	187000	172000	107000	78500
9	131000	118000	73400	74700	66600	78500	126000	329000	169000	178000	102000	72800
10	126000	107000	75500	76100	66100	73400	126000	338000	161000	210000	97900	67600

11	133000	106000	76000	73600	66100	68500	123000	376000	176000	230000	93400	66400
12	139000	104000	75700	69700	62100	67600	121000	396000	189000	236000	89100	67400
13	153000	105000	76000	64700	60800	71800	120000	386000	236000	232000	85500	68500
14	150000	105000	80800	57500	61500	82600	114000	361000	254000	231000	84400	73300
15	147000	107000	83500	54000	67000	100000	108000	329000	243000	229000	83500	89100

16	156000	105000	81300	55800	75800	101000	106000	306000	225000	221000	81300	107000
17	160000	105000	80400	63700	78200	96300	e108000	296000	212000	219000	78400	103000
18	157000	103000	86100	66600	71600	104000	e111000	293000	209000	221000	74900	91400
19	168000	107000	103000	63200	75200	103000	e115000	288000	204000	236000	74100	79200
20	163000	102000	98300	59600	77700	131000	e119000	283000	195000	228000	72300	79100

21	161000	97700	95000	59500	78000	158000	e125000	279000	181000	212000	69100	86400
22	157000	100000	90800	58500	80800	148000	e130000	280000	171000	194000	68700	88500
23	153000	95800	88300	58300	80100	130000	137000	281000	157000	189000	70700	93500
24	149000	99900	86900	60800	75900	124000	149000	284000	152000	189000	75800	89400
25	149000	98100	87100	62800	77800	125000	173000	297000	138000	181000	75100	94000

26	146000	94600	77800	61900	77000	122000	191000	300000	168000	175000	71800	87800
27	128000	95200	71500	60900	75900	111000	213000	294000	192000	168000	68600	84900
28	121000	94700	66600	60200	74800	120000	211000	290000	190000	158000	68500	82000
29	131000	91800	66000	58800	---	136000	212000	285000	166000	154000	71100	74600
30	134000	91800	68000	58400	---	132000	221000	280000	158000	150000	68300	73000

31	135000	---	74300	59100	---	118000	---	272000	---	142000	64900	---

MEAN	137700	107200	81550	66910	69850	100700	136100	298600	195200	191700	88050	88010
MAX	168000	130000	103000	85300	80800	158000	221000	396000	255000	236000	134000	126000
MIN	97700	91800	66000	54000	60700	67600	106000	224000	138000	142000	64900	66400
IN.	0.23	0.17	0.13	0.11	0.10	0.17	0.22	0.49	0.31	0.32	0.15	0.14

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 2003, BY WATER YEAR (WY)
MEAN	139300	143400	123500	114800	144900	228600	303700	296200	272200	222400	144900	136500
MAX	575300	359200	452400	307800	301400	521800	692500	588700	600600	808800	700200	531800
(WY)	1987	1986	1983	1973	1974	1973	1973	1995	1947	1993	1993	1993
MIN	44170	47920	42130	31340	41900	74550	110100	79500	70260	67130	43510	54640
(WY)	1940	1940	1938	1940	1940	1964	1934	1934	1934	1936	1936	1939

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1933 - 2003
ANNUAL MEAN	186500		130600		189300
HIGHEST ANNUAL MEAN					429700	1993
LOWEST ANNUAL MEAN					67700	1934
HIGHEST DAILY MEAN	679000	May 17	396000	May 12	1050000	Aug 1 1993
LOWEST DAILY MEAN	66000	Dec 29	54000	Jan 15	27800	Dec 12 1937
ANNUAL SEVEN-DAY MINIMUM	73000	Dec 25	60000	Jan 26	28200	Jan 18 1940
MAXIMUM PEAK FLOW			400000	May 12	1080000	Aug 1 1993
MAXIMUM PEAK STAGE			25.00	May 12	49.58	Aug 1 1993
INSTANTANEOUS LOW FLOW			53400	Jan 15	27800	Dec 12 1937
ANNUAL RUNOFF (INCHES)	3.63		2.54		3.69
10 PERCENT EXCEEDS	381000		232000		370000
50 PERCENT EXCEEDS	145000		107000		152000
90 PERCENT EXCEEDS	89100		66600		69400