07010000 DATA: Discharge Tables, 2002

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. Sediment discharge computed from transport curve.

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 for estimated daily discharges, which are poor.

DISCHARGE, 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	129000	132000	139000	89100	234000	152000	145000	408000	351000	227000	136000	172000
2	118000	131000	138000	82900	261000	156000	139000	402000	329000	219000	129000	163000
3	106000	133000	140000	81100	227000	160000	148000	387000	327000	217000	122000	156000
4	96600	133000	145000	81100	196000	149000	151000	377000	323000	213000	121000	144000
5	103000	135000	141000	85000	172000	132000	154000	363000	311000	209000	117000	133000

6	101000	137000	135000	89300	158000	117000	155000	350000	305000	204000	116000	126000
7	106000	130000	127000	89100	148000	125000	158000	368000	317000	200000	116000	120000
8	110000	121000	123000	87000	138000	134000	164000	428000	329000	193000	119000	120000
9	116000	121000	120000	97700	134000	146000	179000	534000	340000	188000	110000	121000
10	110000	126000	124000	99700	137000	157000	207000	566000	352000	184000	110000	119000

11	110000	120000	129000	94100	136000	173000	220000	577000	364000	183000	114000	117000
12	129000	118000	138000	99000	133000	176000	217000	581000	391000	188000	110000	123000
13	135000	115000	138000	98700	133000	167000	204000	609000	418000	189000	116000	125000
14	138000	111000	142000	100000	137000	163000	207000	640000	453000	183000	127000	124000
15	136000	109000	145000	97500	139000	168000	203000	662000	460000	174000	129000	124000

16	136000	105000	150000	91300	134000	174000	197000	676000	452000	161000	128000	123000
17	135000	107000	176000	94900	126000	173000	205000	679000	436000	149000	134000	e121000
18	144000	99900	187000	89500	124000	167000	207000	664000	417000	150000	131000	e123000
19	146000	103000	171000	90500	123000	167000	212000	639000	394000	146000	126000	e126000
20	154000	99100	162000	89100	118000	169000	224000	602000	366000	143000	151000	e129000

21	154000	102000	153000	86500	116000	166000	249000	562000	334000	154000	153000	e125000
22	137000	98000	152000	81100	132000	167000	293000	525000	310000	155000	151000	e116000
23	136000	90600	157000	79500	142000	161000	304000	489000	293000	151000	149000	e110000
24	161000	107000	145000	89200	155000	163000	305000	450000	275000	152000	190000	e109000
25	180000	122000	123000	86300	164000	178000	321000	426000	269000	148000	219000	e110000

26	168000	116000	121000	84600	160000	172000	316000	419000	262000	146000	215000	e105000
27	148000	114000	111000	84800	145000	166000	308000	421000	252000	139000	208000	e97700
28	152000	116000	91400	85000	146000	164000	330000	438000	244000	138000	197000	e90600
29	148000	122000	82700	92400	---	175000	370000	437000	240000	132000	187000	e91200
30	138000	138000	78800	98800	---	170000	399000	417000	238000	141000	185000	e95300

31	142000	---	89000	136000	---	158000	---	388000	---	142000	181000	---

MEAN	133000	117100	134600	91320	152400	160200	229700	499500	338400	171500	145100	122000
MAX	180000	138000	187000	136000	261000	178000	399000	679000	460000	227000	219000	172000
MIN	96600	90600	78800	79500	116000	117000	139000	350000	238000	132000	110000	90600
IN.	0.22	0.19	0.22	0.15	0.23	0.26	0.37	0.83	0.54	0.28	0.24	0.20

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 2002, BY WATER YEAR (WY)
MEAN	139300	143900	124100	115500	146000	230400	306100	296200	273300	222800	145800	137200
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 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1933 - 2002
ANNUAL MEAN	232900		191400		190100
HIGHEST ANNUAL MEAN					429700	1993
LOWEST ANNUAL MEAN					67700	1934
HIGHEST DAILY MEAN	609000	Jun 10	679000	May 17	1050000	Aug 1 1993
LOWEST DAILY MEAN	70300	Jan 13	78800	Dec 30	27800	Dec 12 1937
ANNUAL SEVEN-DAY MINIMUM	72400	Jan 1	83500	Dec 29	28200	Jan 18 1940
MAXIMUM PEAK FLOW			682000	May 17	1080000	Aug 1 1993
MAXIMUM PEAK STAGE			37.34	May 17	49.58	Aug 1 1993
INSTANTANEOUS LOW FLOW			75600	Jan 23	27800	Dec 12 1937
ANNUAL RUNOFF (INCHES)	4.54		3.73		3.71
10 PERCENT EXCEEDS	446000		381000		371000
50 PERCENT EXCEEDS	175000		146000		153000
90 PERCENT EXCEEDS	97100		98400		69400