07022000 DATA: Sediment Tables, 2000

Station list Available data
LOWER MISSISSIPPI RIVER BASIN

07022000 MISSISSIPPI RIVER AT THEBES, IL

LOCATION.-- Lat 37°13'00", long 89°27'50", in NW 1/4 sec.17, T.15 S., R.3 W., Alexander County, Hydrologic Unit 07140105, near center span on downstream side of railroad bridge at Thebes, 5.0 mi downstream from Headwater Diversion Channel, and at mile 43.7 above Ohio River.

DRAINAGE AREA.-- 713,200 mi², approximately.

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

DISCHARGE: October 1932 to current year. Monthly discharge only for some periods, published in WSP 1311. Prior to April 1941, published as "at Cape Girardeau, Mo".

STAGE: March 1933 to February 1938 and October 1939 to current year in reports of the U.S. Geological Survey. Prior to April 1941, published as "at Cape Girardeau, Mo". Since November 1878, under name of "at Grays Point" in files of the U.S. Army Corps of Engineers; January 1879 to May of 1896, published as "at Grays Point"; since May 1896, published as "at Cape Girardeau" in reports of the Mississippi River Commission February 1891 to February 1894; and since 1904, published as "at Cape Girardeau" in reports of the National Weather Service.

SURFACE-WATER QUALITY

CHEMICAL: January 1973 to current year.

SEDIMENT: October 1980 to current year.

SPECIFIC CONDUCTANCE: October 1974 to September 1981.

WATER TEMPERATURE: October 1974 to September 1981.

REVISED RECORDS.-- WSP 1341: 1844(M). WDR MO-76-1: Drainage area, WDR MO-98-1: Extreme outside period of record.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and telemark. Datum of gage is 300.00 ft above sea level. Mar. 17, 1933, to Dec. 21 1934, nonrecording gage; Dec. 22, 1934, to Apr. 4, 1941, water-stage recorder, at site 8.2 mi upstream at datum 4.65 ft higher; Apr. 5, 1941, to Sept. 30, 1941, nonrecording gage at present site and datum; Oct. 1, 1941, to Oct. 11, 1943, at datum 0.07 ft higher. Prior to Apr. 5, 1941, various auxiliary gages used. Since Oct. 1, 1943, former gage at Cape Girardeau used as auxiliary gage.

REMARKS.-- Natural flow of stream affected by many reservoirs and navigation dams in upper the Mississippi River Basin and by many reservoirs and diversions for irrigation in the Missouri River Basin. NASQAN station January 1973 to September 1986. Illinois Environmental Protection Agency station October 1986 to September 1994 (during the period, samples were analyzed by the Illinois EPA). Re-established as a NASQAN station October 1994 to current year.

EXTREMES FOR PERIOD OF RECORD.--
SPECIFIC CONDUCTANCE: Maximum daily, 705 microsiemens per centimeter, Aug. 5-7, 1980; minimum daily, 272 microsiemens per centimeter, Apr. 6, 1979.
WATER TEMPERATURE: Maximum daily, 31.5 °C, July 10 and 11, 1975, and July 17, 1977; minimum daily, 0.0 °C, on several days during winter periods.
SUSPENDED-SEDIMENT CONCENTRATONS: Maximum daily mean, 3,890 mg/L, Dec. 22, 1985; minimum daily mean, 13 mg/L, Jan. 28, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 6,280,000 tons, Mar. 1, 1985; minimum daily, 2,530 tons, Jan. 28, 1981.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of July 4, 1844, reached an elevation of 345.14 ft, present datum, at Grays Point, from floodmarks, discharge, 1,075,000 ft³/s, computed by the U.S. Army Corps of Engineers.

EXTREMES FOR CURRENT YEAR.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 871 mg/L, May 10; minimum daily mean, 80 mg/L, Feb. 13.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 874,000 tons, July 2; minimum daily, 17,800 tons, Feb. 13.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
		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	134000	154	56700	110000	129	38300	121000	107	34900
2	149000	148	59600	111000	130	38900	117000	95	30000
3	156000	156	65800	112000	118	35600	115000	93	28800
4	149000	149	59800	110000	107	31700	113000	90	27600
5	140000	149	56000	107000	116	33500	112000	98	29500

6	135000	157	57100	107000	156	45200	113000	104	31900
7	131000	146	51500	110000	154	45600	118000	114	36400
8	128000	136	47000	112000	136	40800	122000	124	40900
9	127000	153	52400	110000	114	34000	128000	134	46500
10	127000	177	60900	107000	118	34000	139000	153	57500

11	122000	141	46600	105000	112	31800	137000	175	64700
12	120000	132	42500	107000	110	31800	133000	126	45200
13	120000	129	41800	107000	118	34300	131000	122	43000
14	121000	125	40700	111000	119	35800	135000	121	43900
15	121000	130	42200	111000	109	32800	136000	109	39900

16	118000	125	39700	108000	106	30800	127000	102	34800
17	117000	132	41500	106000	115	32900	121000	113	36800
18	114000	158	48600	107000	100	28800	120000	116	37600
19	111000	144	43100	105000	103	29400	119000	96	31000
20	109000	143	42000	106000	116	33100	114000	89	27400

21	109000	132	38900	108000	97	28100	107000	---	25600
22	108000	117	34300	101000	96	26400	101000	---	24200
23	108000	126	36800	97100	114	29800	89400	---	21600
24	108000	119	34700	99000	104	27900	81600	---	20600
25	108000	113	33000	103000	106	29300	79000	---	20900

26	107000	110	31800	110000	102	30200	80000	---	22200
27	109000	115	33900	114000	103	31800	83000	107	23900
28	110000	104	31200	112000	94	28500	84700	---	23700
29	112000	110	33200	115000	103	32000	82600	---	22000
30	110000	114	33700	118000	94	29900	81100	---	20700

31	109000	119	34900	---	---	---	81600	---	19900


	JANUARY			FEBRUARY			MARCH

1	82400	---	19200	91600	96	23600	189000	205	105000
2	86400	116	27100	88900	92	22000	191000	212	110000
3	101000	291	80500	85100	103	23700	184000	217	108000
4	114000	336	103000	83900	95	21600	175000	202	95500
5	113000	191	58000	89500	93	22600	179000	202	97600

6	110000	155	45800	90800	88	21700	182000	208	103000
7	103000	133	37100	88500	96	22900	182000	203	99400
8	102000	132	36500	89300	94	22600	174000	168	78800
9	98600	125	33200	89800	94	22800	166000	154	68700
10	94900	101	25900	86800	85	19800	159000	141	60600

11	99000	112	29800	83600	87	19600	154000	146	60900
12	102000	117	32400	82100	84	18600	149000	147	59000
13	100000	118	31900	82300	80	17800	148000	139	55400
14	98100	112	29600	84300	94	21400	147000	152	60400
15	101000	124	33700	86200	88	20600	142000	171	65600

16	99700	125	33800	86300	99	23100	134000	165	59800
17	97200	132	34500	85700	101	23400	127000	161	55200
18	91400	130	32100	96500	175	46000	128000	153	53000
19	88200	106	25200	112000	229	69600	133000	140	50500
20	88900	101	24200	126000	266	90600	143000	163	63100

21	89100	106	25500	137000	273	101000	150000	172	69700
22	92600	108	27100	138000	335	125000	156000	161	67600
23	89700	110	26600	129000	264	92300	153000	168	69300
24	87100	107	25200	119000	218	70300	151000	175	71500
25	85200	96	22200	113000	220	67000	154000	145	60200

26	83800	90	20500	115000	225	70100	151000	142	58000
27	82000	85	18900	128000	232	80800	146000	150	59100
28	79900	90	19300	150000	234	94400	143000	124	47600
29	87000	90	21300	175000	180	85400	138000	137	50800
30	93200	106	26600	---	---	---	127000	135	46300

31	93500	97	24500	---	---	---	126000	141	48100


	APRIL			MAY			JUNE

1	134000	144	52400	166000	154	69200	218000	282	165000
2	140000	158	59900	169000	154	70000	198000	250	134000
3	141000	146	55600	163000	146	64300	187000	230	116000
4	135000	139	50500	153000	145	59800	197000	209	111000
5	130000	144	50300	148000	147	58800	205000	196	108000

6	126000	169	57500	141000	130	49600	206000	212	118000
7	124000	144	48000	132000	120	43000	215000	225	131000
8	127000	165	56700	143000	195	77800	220000	257	153000
9	129000	164	57300	193000	673	360000	221000	285	170000
10	129000	149	52000	199000	871	469000	221000	271	162000

11	126000	147	50100	164000	601	269000	225000	272	166000
12	121000	123	40100	136000	315	116000	228000	282	174000
13	121000	131	42900	127000	223	76400	235000	282	179000
14	120000	140	45400	130000	195	68300	239000	295	190000
15	122000	130	42700	129000	185	64700	238000	296	190000

16	118000	121	38400	127000	181	62100	238000	290	187000
17	113000	130	39300	127000	162	55500	272000	346	257000
18	110000	131	38700	125000	149	50400	325000	512	451000
19	110000	120	35900	126000	156	52800	335000	498	450000
20	108000	118	34500	126000	160	54500	329000	437	386000

21	107000	127	36800	125000	152	51400	330000	432	385000
22	114000	135	41700	127000	145	49500	334000	468	422000
23	127000	142	48800	136000	172	63200	340000	490	450000
24	155000	169	70800	155000	171	71400	347000	488	457000
25	178000	174	84100	166000	160	71600	374000	510	515000

26	176000	161	76700	171000	161	74200	395000	634	677000
27	172000	159	73800	179000	159	77000	398000	585	628000
28	167000	153	68700	199000	197	106000	401000	515	558000
29	164000	157	69600	238000	264	170000	416000	612	688000
30	164000	149	66000	254000	320	220000	426000	693	796000

31	---	---	---	235000	316	200000	---	---	---


	JULY			AUGUST			SEPTEMBER

1	425000	731	838000	153000	190	78300	113000	164	49700
2	413000	784	874000	154000	196	81600	112000	164	49300
3	393000	733	776000	150000	135	54500	113000	155	47100
4	370000	653	652000	145000	144	56600	113000	151	46200
5	347000	541	506000	145000	140	54800	105000	154	46500

6	327000	485	428000	144000	134	51900	100000	159	47400
7	312000	426	359000	139000	146	54800	95300	173	45300
8	301000	380	309000	134000	146	52900	90500	165	40400
9	300000	361	293000	138000	165	61500	90300	158	38500
10	299000	376	303000	152000	166	68600	87200	143	33600

11	291000	364	286000	170000	205	94400	89800	150	36400
12	270000	365	266000	173000	249	116000	95200	161	41500
13	262000	342	241000	161000	228	99000	99500	152	41000
14	264000	329	235000	147000	189	75100	99100	160	42700
15	263000	321	228000	135000	160	58600	100000	155	42000

16	259000	304	212000	118000	157	50000	108000	143	41600
17	258000	276	192000	111000	178	53500	112000	146	44300
18	257000	269	187000	112000	172	51800	113000	153	46700
19	257000	256	178000	119000	174	56000	114000	146	44800
20	273000	310	229000	127000	156	53300	118000	140	44600

21	282000	349	266000	128000	160	55400	117000	139	44100
22	281000	327	248000	127000	160	55000	112000	146	43900
23	274000	272	201000	125000	133	44800	107000	148	43000
24	263000	261	185000	124000	148	49400	107000	142	41200
25	247000	245	163000	128000	141	48800	104000	160	44900

26	227000	240	147000	141000	141	53700	100000	149	40300
27	204000	224	123000	163000	171	75600	109000	155	45700
28	185000	186	93100	168000	213	96700	119000	157	50600
29	171000	190	88100	151000	222	90300	122000	147	48400
30	171000	220	102000	132000	200	71400	115000	125	39400

31	160000	195	84200	121000	172	56000	---	---	---