07010000 DATA: Sediment 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.

EXTREMES FOR CURRENT YEAR.--
SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,550 mg/L, May 9; minimum daily mean, 62 mg/L, Oct. 7, Nov. 23, and Jan. 26.
SEDIMENT LOADS: Maximum daily, 2,240,000 tons, May 9; minimum daily, 14,100 tons, Jan. 26.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
		MEAN			MEAN			MEAN
	MEAN	CONCEN-	SEDIMENT	MEAN	CONCEN-	SEDIMENT	MEAN	CONCEN-	SEDIMENT
	DISCHARGE	TRATION	DISCHARGE	DISCHARGE	TRATION	DISCHARGE	DISCHARGE	TRATION	DISCHARGE
DAY	(cfs)	(mg/L)	(tons/day)	(cfs)	(mg/L)	(tons/day)	(cfs)	(mg/L)	(tons/day)

	OCTOBER			NOVEMBER			DECEMBER

1	129000	174	60700	132000	150	53600	139000	135	50700
2	118000	134	42800	131000	138	48800	138000	98	36400
3	106000	106	30400	133000	135	48600	140000	97	36600
4	96600	86	22600	133000	130	46600	145000	108	42200
5	103000	69	19100	135000	123	44900	141000	96	36700

6	101000	70	19100	137000	119	44200	135000	104	37800
7	106000	62	17700	130000	115	40300	127000	94	32200
8	110000	70	20900	121000	106	34700	123000	91	30300
9	116000	76	24000	121000	93	30500	120000	98	31700
10	110000	75	22400	126000	84	28500	124000	99	33200

11	110000	118	34900	120000	81	26200	129000	99	34400
12	129000	191	66600	118000	74	23500	138000	103	38400
13	135000	149	54200	115000	70	21700	138000	118	43900
14	138000	165	61300	111000	71	21300	142000	168	64500
15	136000	107	39300	109000	74	21800	145000	269	105000

16	136000	112	41100	105000	66	18700	150000	214	86500
17	135000	108	39400	107000	67	19300	176000	513	244000
18	144000	111	43100	99900	65	17500	187000	388	196000
19	146000	106	41400	103000	72	19900	171000	276	127000
20	154000	125	51900	99100	69	18400	162000	253	111000

21	154000	134	55900	102000	68	18800	153000	239	98600
22	137000	127	47100	98000	69	18400	152000	183	75300
23	136000	132	48600	90600	62	15100	157000	154	65400
24	161000	160	69700	107000	121	35100	145000	136	53300
25	180000	212	103000	122000	139	45900	123000	119	39400

26	168000	197	89600	116000	109	34200	121000	115	37500
27	148000	181	72400	114000	101	31000	111000	107	32100
28	152000	170	69600	116000	94	29500	91400	101	24900
29	148000	160	63900	122000	125	41000	82700	82	18300
30	138000	147	54900	138000	126	46900	78800	80	17000

31	142000	159	61100	---	---	---	89000	72	17300


	JANUARY			FEBRUARY			MARCH

1	89100	81	19500	234000	1070	677000	152000	129	53000
2	82900	72	16100	261000	1020	720000	156000	135	56900
3	81100	75	16500	227000	909	557000	160000	222	95800
4	81100	74	16200	196000	667	353000	149000	151	60600
5	85000	77	17800	172000	461	214000	132000	126	45100

6	89300	77	18600	158000	476	203000	117000	113	35800
7	89100	76	18400	148000	234	93500	125000	112	37800
8	87000	76	17800	138000	207	77000	134000	113	40800
9	97700	86	22800	134000	187	67600	146000	230	90700
10	99700	72	19400	137000	175	64600	157000	328	139000

11	94100	73	18500	136000	182	66800	173000	131	61400
12	99000	75	20000	133000	175	62700	176000	148	70400
13	98700	74	19600	133000	160	57400	167000	176	79300
14	100000	78	20900	137000	156	57900	163000	268	118000
15	97500	78	20600	139000	146	54900	168000	266	121000

16	91300	78	19300	134000	153	55300	174000	249	117000
17	94900	73	18800	126000	140	47500	173000	222	104000
18	89500	80	19200	124000	134	45000	167000	216	97400
19	90500	72	17500	123000	132	44000	167000	215	96700
20	89100	77	18400	118000	129	41000	169000	205	93400

21	86500	75	17500	116000	145	45400	166000	216	96700
22	81100	70	15400	132000	131	46800	167000	183	82400
23	79500	71	15300	142000	127	48500	161000	174	75500
24	89200	64	15500	155000	155	65000	163000	193	84000
25	86300	71	16500	164000	204	90300	178000	362	173000

26	84600	62	14100	160000	229	99100	172000	318	146000
27	84800	68	15500	145000	185	72600	166000	284	125000
28	85000	66	15200	146000	143	56600	164000	329	144000
29	92400	72	18000	---	---	---	175000	298	137000
30	98800	75	20000	---	---	---	170000	251	112000

31	136000	682	250000	---	---	---	158000	208	86500


	APRIL			MAY			JUNE

1	145000	165	62900	408000	694	764000	351000	353	335000
2	139000	146	53000	402000	632	686000	329000	326	289000
3	148000	152	58800	387000	519	542000	327000	315	278000
4	151000	150	58600	377000	334	340000	323000	267	233000
5	154000	136	54500	363000	256	251000	311000	281	236000

6	155000	131	52400	350000	380	359000	305000	287	237000
7	158000	132	53700	368000	667	663000	317000	289	247000
8	164000	149	62600	428000	868	1000000	329000	295	262000
9	179000	179	82100	534000	1550	2240000	340000	312	287000
10	207000	216	115000	566000	1290	1970000	352000	350	333000

11	220000	301	170000	577000	1110	1730000	364000	445	438000
12	217000	352	196000	581000	1350	2120000	391000	782	826000
13	204000	345	180000	609000	1180	1940000	418000	708	800000
14	207000	320	170000	640000	1120	1930000	453000	1070	1310000
15	203000	298	155000	662000	1090	1940000	460000	964	1200000

16	197000	287	146000	676000	1100	2010000	452000	681	832000
17	205000	306	162000	679000	852	1560000	436000	515	607000
18	207000	360	193000	664000	939	1680000	417000	444	499000
19	212000	358	198000	639000	614	1060000	394000	378	402000
20	224000	589	347000	602000	563	915000	366000	320	316000

21	249000	687	450000	562000	527	800000	334000	399	359000
22	293000	669	518000	525000	484	685000	310000	415	347000
23	304000	764	615000	489000	351	464000	293000	374	296000
24	305000	725	587000	450000	329	400000	275000	308	229000
25	321000	796	681000	426000	317	365000	269000	254	184000

26	316000	858	723000	419000	287	325000	262000	226	160000
27	308000	832	685000	421000	277	315000	252000	224	152000
28	330000	588	520000	438000	527	623000	244000	193	127000
29	370000	737	724000	437000	563	664000	240000	173	112000
30	399000	578	621000	417000	428	481000	238000	167	107000

31	---	---	---	388000	388	406000	---	---	---


	JULY			AUGUST			SEPTEMBER

1	227000	163	100000	136000	86	31500	172000	162	75400
2	219000	133	78400	129000	85	29700	163000	162	71400
3	217000	155	91000	122000	73	24000	156000	140	59100
4	213000	144	82700	121000	75	24600	144000	125	48700
5	209000	146	82700	117000	74	23300	133000	101	36300

6	204000	125	69100	116000	90	28300	126000	96	32600
7	200000	103	55700	116000	92	28900	120000	84	27100
8	193000	101	52400	119000	83	26700	120000	83	26900
9	188000	98	49800	110000	76	22600	121000	81	26600
10	184000	87	43100	110000	72	21400	119000	77	24800

11	183000	88	43300	114000	80	24500	117000	77	24300
12	188000	98	49900	110000	80	23600	123000	80	26500
13	189000	101	51300	116000	87	27300	125000	81	27300
14	183000	92	45600	127000	77	26300	124000	81	27000
15	174000	94	44200	129000	73	25500	124000	84	28200

16	161000	113	49100	128000	73	25100	123000	84	28000
17	149000	90	36100	134000	71	25700	e121000	85	27800
18	150000	113	46000	131000	74	26100	e123000	90	29700
19	146000	82	32300	126000	80	27300	e126000	104	35300
20	143000	80	31000	151000	153	62500	e129000	162	56500

21	154000	78	32200	153000	159	64600	e125000	145	48900
22	155000	88	36700	151000	148	60200	e116000	82	25500
23	151000	82	33500	149000	119	47700	e110000	89	26400
24	152000	85	35000	190000	156	80200	e109000	89	26200
25	148000	72	28800	219000	183	108000	e110000	93	27600

26	146000	80	31400	215000	186	108000	e105000	92	26100
27	139000	95	35700	208000	176	98700	e97700	95	25000
28	138000	86	32000	197000	168	89200	e90600	94	22900
29	132000	91	32600	187000	166	83600	e91200	86	21100
30	141000	87	33200	185000	128	64200	e95300	102	27300

31	142000	85	32600	181000	121	59100	---	---	---

e Estimated