07010000 DATA: Discharge Tables, 2004

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. 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.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	76400	68100	118000	121000	88700	129000	301000	213000	396000	343000	177000	283000
2	69100	68700	105000	131000	90300	131000	305000	225000	394000	331000	158000	233000
3	66900	71100	96700	124000	85700	133000	302000	226000	428000	317000	144000	215000
4	68000	80900	100000	132000	79900	149000	291000	225000	451000	299000	147000	194000
5	66900	97000	97400	164000	79500	213000	284000	218000	443000	281000	159000	165000

6	64600	111000	86200	156000	82100	306000	277000	208000	430000	265000	174000	145000
7	62300	122000	82400	133000	84700	379000	272000	191000	415000	245000	192000	134000
8	62200	120000	81000	114000	83500	407000	272000	180000	401000	246000	176000	123000
9	66600	116000	89000	110000	78800	389000	266000	168000	390000	251000	159000	115000
10	80400	113000	105000	107000	77800	361000	258000	156000	385000	249000	156000	117000

11	72900	108000	184000	107000	78400	327000	250000	146000	379000	245000	142000	115000
12	66900	107000	197000	104000	80400	288000	235000	136000	368000	243000	133000	108000
13	64300	103000	193000	102000	85500	270000	221000	146000	369000	242000	130000	105000
14	65300	92400	176000	99900	85200	258000	207000	172000	372000	248000	118000	100000
15	67700	86500	151000	99300	82900	238000	191000	180000	364000	263000	110000	101000

16	69300	85200	138000	98800	80700	222000	161000	175000	370000	270000	99900	107000
17	81300	84000	134000	97400	76800	220000	157000	172000	397000	259000	104000	118000
18	83300	133000	136000	106000	75000	212000	150000	173000	421000	241000	104000	122000
19	77200	158000	141000	111000	76300	207000	149000	183000	426000	228000	97800	125000
20	67700	150000	131000	111000	78900	211000	141000	222000	419000	229000	98200	124000

21	64500	148000	118000	111000	93900	209000	147000	246000	414000	227000	110000	117000
22	71100	142000	111000	119000	103000	204000	147000	267000	405000	218000	110000	118000
23	71000	143000	120000	111000	115000	187000	151000	287000	400000	206000	106000	137000
24	73600	142000	143000	105000	129000	183000	152000	271000	397000	199000	92200	150000
25	72900	124000	160000	103000	125000	176000	164000	264000	399000	195000	94400	154000

26	74800	124000	143000	106000	145000	181000	172000	301000	394000	186000	148000	151000
27	73400	131000	128000	101000	156000	230000	180000	369000	387000	181000	190000	144000
28	69500	131000	118000	92700	139000	281000	181000	449000	379000	178000	261000	142000
29	69400	121000	122000	84800	131000	290000	206000	460000	368000	181000	314000	134000
30	69200	111000	119000	89400	---	281000	211000	440000	356000	180000	300000	129000

31	65800	---	113000	88500	---	290000	---	416000	---	175000	301000	---

MEAN	70150	113100	127000	111000	95450	243900	213400	241500	397200	239400	155000	140800
MAX	83300	158000	197000	164000	156000	407000	305000	460000	451000	343000	314000	283000
MIN	62200	68100	81000	84800	75000	129000	141000	136000	356000	175000	92200	100000
IN.	0.12	0.18	0.21	0.18	0.15	0.40	0.34	0.40	0.64	0.40	0.26	0.23

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 2004, BY WATER YEAR (WY)
MEAN	138300	142900	123500	114800	144200	228800	302400	295400	273900	222600	145100	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 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1933 - 2004
ANNUAL MEAN	129200		179000		189100
HIGHEST ANNUAL MEAN					429700	1993
LOWEST ANNUAL MEAN					67700	1934
HIGHEST DAILY MEAN	396000	May 12	460000	May 29	1050000	Aug 1 1993
LOWEST DAILY MEAN	54000	Jan 15	62200	Oct 8	27800	Dec 12 1937
ANNUAL SEVEN-DAY MINIMUM	60000	Jan 26	65400	Oct 3	28200	Jan 18 1940
MAXIMUM PEAK FLOW			463000	May 29	1080000	Aug 1 1993
MAXIMUM PEAK STAGE			28.19	May 29	49.58	Aug 1 1993
INSTANTANEOUS LOW FLOW			61100	Oct 21	27800	Dec 12 1937
ANNUAL RUNOFF (INCHES)	2.52		3.50		3.69
10 PERCENT EXCEEDS	232000		365000		369000
50 PERCENT EXCEEDS	108000		146000		152000
90 PERCENT EXCEEDS	65900		78700		69400