07020500 DATA: Sediment Tables, 2001

Station list Available data
LOWER MISSISSIPPI RIVER BASIN

07020500 MISSISSIPPI RIVER AT CHESTER, IL

LOCATION.-- Lat 37°54'10", long 89°50'10", in SW 1/4 sec.24, T.7 S., R.7 W., third principal meridian, Randolph County, Hydrologic Unit 07140105, on downstream side of left pier of main truss of highway bridge at Chester, 8.1 mi downstream from Kaskaskia River, and at mile 109.9 above Ohio River.

DRAINAGE AREA.-- 708,600 mi², approximately.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1927 to current year in reports of the U.S. Geological Survey. Monthly discharge only for some periods, published in WSP 1311. Since August 1873, results of discharge measurements in reports of the Mississippi River Commission.

STAGE: July 1942 to current year in reports of the U.S. Geological Survey. Since May 1891, in reports of the Mississippi River Commission and National Weather Service.

SURFACE-WATER QUALITY

SEDIMENT: August 1980 to current year.

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

GAGE.-- Water-stage recorder and U.S. Army Corps of Engineers satellite telemeter. Datum of gage is 341.05 ft above sea level. Prior to Feb. 1, 1962, nonrecording gage 0.4 mi 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, 1,000,000 ft³/s, August 7, 1993, gage height, 49.74 ft; minimum discharge, 30,000 ft³/s, December 12, 1937.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 3,380 mg/L, Apr. 13, 1987; minimum daily mean, 13 mg/L, Mar. 18, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 3,330,000 tons, Feb. 25, 1997; minimum daily, 3,580 tons, Mar. 18, 1981.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of June 30, 1844, reached a gage height of 39.8 ft, discharge, 1,050,000 ft³/s, computed by the U.S. Army Corps of Engineers.

EXTREMES FOR CURRENT YEAR.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,600 mg/L, March 19; minimum daily mean, 59 mg/L, Jan. 9, 13, and 14.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 2,150,000 tons, June 9; minimum daily, 11,400 tons, Jan. 13.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
		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	107000	99	28600	101000	97	26300	109000	109	32000
2	105000	98	27600	93300	112	28200	109000	114	33500
3	100000	99	26900	86300	121	28200	110000	122	36200
4	93200	105	26500	84000	133	30200	108000	110	32000
5	93800	110	27900	86800	133	31000	110000	126	37400

6	117000	120	37900	91200	120	29600	107000	109	31500
7	120000	118	38300	103000	107	29900	99100	86	23100
8	116000	117	36800	116000	100	31300	89100	79	19100
9	115000	113	34900	115000	94	29300	80300	76	16500
10	105000	106	30000	123000	93	30900	75100	73	14800

11	94600	107	27400	132000	96	34200	72700	72	14200
12	90700	115	28100	144000	126	49400	74700	118	23800
13	92500	119	29800	153000	170	70300	75400	130	26500
14	92400	122	30500	159000	178	76300	66300	105	18800
15	92200	116	28900	148000	183	73200	63400	97	16600

16	95700	106	27200	138000	200	74800	64400	96	16700
17	108000	96	27800	138000	175	65300	66100	---	e17500
18	114000	92	28500	135000	143	52400	71900	---	e21700
19	112000	99	30000	134000	144	52100	72900	---	e22600
20	104000	109	30800	136000	150	55100	73400	---	e24000

21	94800	115	29400	137000	136	50400	71000	---	e21300
22	87700	117	27800	128000	115	39600	68800	---	e18500
23	84200	101	22900	126000	113	38400	72100	---	e20900
24	87900	93	22200	118000	113	36100	77300	---	e25500
25	97300	115	30100	112000	99	30000	79500	---	e27800

26	96700	113	29600	112000	96	29000	76600	---	e24800
27	92800	102	25600	116000	106	33200	73500	---	e21400
28	90200	91	22200	114000	113	34800	72400	---	e18600
29	92000	90	22300	112000	135	40700	70200	---	e15700
30	93800	89	22600	111000	130	38900	72100	---	e14700

31	98400	89	23600	---	---	---	72100	---	e14200


	JANUARY			FEBRUARY			MARCH

1	70700	---	e13400	212000	325	187000	459000	1550	1920000
2	71500	---	e13100	217000	362	212000	451000	1440	1750000
3	72300	---	e12700	197000	369	197000	424000	1270	1460000
4	71300	---	e12000	185000	327	164000	381000	1010	1040000
5	72000	---	e11700	176000	248	118000	335000	748	679000

6	74800	---	e12000	160000	235	102000	305000	661	546000
7	75300	---	e12000	152000	196	80800	292000	681	537000
8	75200	---	e11900	143000	226	87200	280000	662	501000
9	75700	59	12100	139000	227	85100	266000	529	380000
10	74700	67	13500	173000	413	198000	252000	381	260000

11	73500	62	12400	246000	681	457000	239000	303	195000
12	73500	62	12300	310000	945	793000	229000	349	216000
13	71200	59	11400	330000	1000	892000	223000	374	225000
14	72500	59	11600	313000	812	686000	212000	290	166000
15	83000	66	14800	288000	686	534000	210000	266	150000

16	89300	79	19000	269000	568	413000	238000	327	211000
17	99400	97	26000	254000	453	310000	293000	489	390000
18	96800	89	23200	241000	377	245000	367000	804	805000
19	97500	81	21500	227000	369	226000	416000	1600	1800000
20	101000	91	24600	216000	308	180000	429000	1550	1790000

21	100000	87	23600	208000	284	159000	420000	1240	1400000
22	103000	101	28000	199000	273	147000	402000	956	1040000
23	104000	119	33600	188000	264	134000	381000	746	769000
24	101000	106	28800	183000	270	133000	361000	631	615000
25	98600	101	26900	241000	494	334000	350000	572	541000

26	93100	94	23700	354000	1120	1080000	345000	608	567000
27	89100	87	21000	410000	1440	1590000	345000	607	566000
28	86000	84	19400	446000	1520	1830000	340000	587	539000
29	82000	81	18000	---	---	---	331000	537	480000
30	94000	89	23000	---	---	---	314000	479	407000

31	165000	199	90800	---	---	---	296000	423	338000


	APRIL			MAY			JUNE

1	282000	379	289000	417000	259	291000	340000	308	282000
2	268000	337	245000	420000	237	269000	346000	309	289000
3	268000	297	214000	421000	273	310000	365000	314	309000
4	265000	265	190000	420000	282	320000	397000	340	366000
5	274000	262	194000	418000	291	328000	430000	507	591000

6	306000	303	250000	413000	282	314000	469000	1090	1380000
7	323000	326	284000	413000	267	297000	502000	1290	1750000
8	318000	356	305000	419000	250	282000	532000	1400	2010000
9	306000	317	262000	429000	309	357000	562000	1420	2150000
10	305000	292	240000	447000	458	553000	583000	1300	2040000

11	307000	313	259000	460000	699	869000	590000	1150	1830000
12	330000	485	434000	460000	732	909000	585000	998	1580000
13	362000	666	651000	455000	722	886000	564000	858	1310000
14	378000	730	745000	454000	562	689000	534000	723	1040000
15	378000	660	673000	463000	479	599000	501000	599	812000

16	377000	620	632000	469000	551	697000	469000	555	703000
17	383000	613	633000	473000	505	645000	442000	552	659000
18	387000	612	640000	478000	530	684000	431000	631	734000
19	391000	599	633000	487000	505	664000	439000	593	702000
20	393000	575	610000	494000	522	696000	443000	549	657000

21	394000	460	490000	501000	552	747000	434000	511	598000
22	396000	438	468000	503000	579	786000	415000	474	531000
23	398000	408	439000	496000	539	722000	412000	502	558000
24	400000	372	402000	485000	474	621000	432000	710	828000
25	406000	399	437000	470000	409	519000	448000	944	1140000

26	412000	440	490000	453000	348	426000	450000	1080	1320000
27	416000	400	449000	432000	314	367000	443000	1050	1250000
28	415000	378	423000	407000	302	331000	429000	952	1100000
29	414000	332	372000	380000	364	372000	407000	829	912000
30	415000	294	329000	357000	366	352000	386000	704	733000

31	---	---	---	344000	325	302000	---	---	---


	JULY			AUGUST			SEPTEMBER

1	369000	578	576000	183000	284	141000	137000	153	56600
2	354000	453	434000	191000	234	121000	132000	146	51800
3	342000	351	324000	200000	252	136000	118000	139	44300
4	334000	291	263000	187000	265	134000	105000	133	38000
5	328000	281	249000	174000	258	121000	103000	130	36200

6	325000	281	247000	170000	250	114000	104000	127	35700
7	329000	280	249000	169000	220	100000	101000	124	33800
8	331000	281	251000	166000	180	80500	99400	124	33100
9	319000	301	259000	163000	160	70700	104000	148	41500
10	301000	325	264000	161000	150	65300	109000	147	43300

11	282000	281	215000	160000	143	61600	102000	140	38400
12	264000	250	179000	152000	160	66000	104000	143	40200
13	254000	212	146000	142000	150	57400	113000	169	51700
14	238000	218	140000	133000	146	52400	121000	176	57500
15	226000	227	139000	119000	149	47800	120000	169	54500

16	220000	235	140000	97000	151	39400	121000	168	54900
17	212000	233	133000	92400	152	38000	120000	153	49400
18	200000	252	136000	90800	154	37700	114000	135	41600
19	195000	273	144000	98900	153	40900	105000	130	36800
20	198000	290	155000	101000	152	41300	104000	127	35500

21	188000	277	141000	99500	156	41800	104000	153	43200
22	186000	251	126000	98000	161	42700	145000	330	132000
23	182000	200	98800	99700	160	43100	178000	366	176000
24	178000	262	126000	107000	208	61000	177000	289	138000
25	187000	311	157000	142000	263	101000	164000	232	103000

26	185000	238	119000	144000	211	82200	153000	196	80800
27	178000	228	110000	128000	136	47500	141000	180	68500
28	181000	245	120000	119000	112	36100	136000	173	63400
29	196000	262	139000	118000	112	35600	140000	210	79600
30	202000	287	157000	125000	122	41100	141000	213	81000

31	191000	314	162000	134000	137	49300	---	---	---