05420500 DATA: Discharge Tables, 2001

Station list Available data
UPPER MISSISSIPPI RIVER BASIN

05420500 MISSISSIPPI RIVER AT CLINTON, IA

(National Stream-Quality Accounting Network Station)

LOCATION.-- Lat 41°46'50", long 90°15'07", in NW1/4 sec.34, T.81 N., R.6 E., Clinton County, Hydrologic Unit 07080101, on right bank at end of Eighth Avenue in Camanche, 5.0 mi upstream from Wapsipinicon River, 6.4 mi downstream from Clinton, 10.6 mi downstream from Lock and Dam 13, and at mile 511.8 upstream from Ohio River.

DRAINAGE AREA.-- 85,600 mi², approximately, at Fulton-Lyons Bridge at Clinton.

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

DISCHARGE: June to August 1873 (fragmentary), October 1873 to current year (October 1932 to September 1939, published as "at Le Claire")(June 1873 to December 1932 published in the Iowa State Planning Board report "Stream-flow records of Iowa, 1873-1932").

SURFACE-WATER QUALITY

CHEMICAL: October 1974 to September 1987, October 1994 to current.

SEDIMENT: October 1994 to September 30, 1997 (discontinued).

SPECIFIC CONDUCTANCE: July 1975 to September 1976; sporadic measurements February 1977 to September 1981; October 1994 to September 30, 1997 (discontinued).

WATER TEMPERATURE: July 1975 to April 1989; January 1995 to September 30, 1997 (discontinued).

MISCELLANEOUS: Periodic observations.

REVISED RECORDS.-- WDR IA-75-1: 1974.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage. Datum of gage is 562.68 ft above sea level. June 6, 1969 to Sept. 16, 1988, water-stage recorder at site 400 ft. upstream at same datum. Auxiliary water-stage recorder at Lock and Dam 13 since Oct. 1, 1958. See WSP 1728 for history of changes prior to Oct. 1, 1955.

REMARKS.-- Minor flow regulation caused by navigation dams. During periods of ice effect, sediment samples are collected in open water channel. Records of specific conductance are obtained from suspended-sediment samples at time of analysis.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum daily discharge, 307,000 ft³/s, discharge affected by regulation or diversion, April 28, 1965, gage height, 24.65 ft; minimum daily discharge, 6,500 ft³/s, December 25, 1933.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum stage known since at least 1828, that of Apr. 28, 1965.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 294 mg/L; Apr. 7, 1997; minimum daily mean, 1 mg/L several days in December 1995 - January 1996.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 108,000 tons, Apr. 7, 1997; minimum daily, 96 tons, Jan. 9, 1996.
SPECIFIC CONDUCTANCE: Maximum daily 560 microsiemens Nov. 24 to Dec. 3, 1979; minimum daily 220 microsiemens Apr . 19, 20, 1976, Nov. 8-18, 1980.
WATER TEMPERATURE: Maximum daily 31.5°C July 21-23, 1983; minimum daily 0.0°C on many days during winter periods.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	26600	24900	38200	e28000	e40000	40500	50300	235000	110000	132000	38200	26200
2	26300	26300	39500	e29000	e39000	34900	51900	236000	114000	130000	36400	25200
3	24700	32400	37300	e31000	e36000	33200	53600	238000	118000	119000	39600	26000
4	23700	36200	35700	e32000	e35000	31200	56000	241000	120000	118000	47000	29900
5	23900	37200	30600	e32000	e34000	32300	57600	242000	119000	110000	47600	30500

6	24800	35800	24000	e30000	e33000	32900	66000	244000	119000	102000	51600	28800
7	24900	38300	19900	e31000	e32000	33600	73200	246000	118000	99900	52500	27200
8	23800	38500	19100	e30000	e32000	33200	79500	245000	117000	92900	54500	29100
9	21200	45000	19500	e30000	e36000	32800	89600	242000	114000	87100	55700	34700
10	18300	51700	18400	e30000	54800	32800	95700	238000	111000	76200	55600	40400

11	17700	48900	e18000	e31000	50800	32000	101000	232000	107000	67900	51200	45200
12	19800	46400	e17000	e31000	46000	34300	112000	222000	101000	58800	38900	46100
13	23600	46700	e20000	e31000	43500	38900	128000	217000	103000	49700	28800	45400
14	28100	46400	e23000	e32000	42800	42400	137000	209000	97100	46500	23800	44600
15	30200	44800	e25000	e31000	41500	42700	150000	200000	98800	41000	23900	40000

16	32200	47600	e23000	e30000	41400	45000	169000	191000	98300	35900	26000	34700
17	30700	48600	e24000	e31000	41500	45500	186000	183000	96400	36800	31300	30200
18	23700	50600	e26000	e33000	39500	44300	202000	175000	95600	37000	29300	28400
19	16800	51000	e26000	e32000	38000	44300	216000	168000	104000	38700	29700	28700
20	e15500	48400	e27000	e32000	35600	44300	231000	160000	109000	40000	31200	37200

21	22700	43200	e27000	e33000	33900	44300	249000	156000	116000	43800	30200	39300
22	27700	42400	e28000	e33000	33300	46000	263000	150000	121000	44400	28600	41100
23	29000	41300	e28000	e32000	33000	48300	268000	142000	123000	45800	32800	37300
24	25600	38700	e28000	e30000	34000	52200	261000	133000	123000	47400	34500	38000
25	24400	37600	e27000	e28000	41000	53100	258000	126000	124000	46800	35900	37400

26	26800	38700	e27000	e27000	49100	51100	253000	121000	127000	44800	33000	38900
27	30600	37200	e28000	e27000	47400	47700	249000	115000	128000	44800	32900	39100
28	31500	34300	e28000	e26000	44400	45800	244000	111000	129000	43600	34100	38000
29	29200	34000	e29000	e28000	---	45000	239000	108000	130000	42500	37000	34800
30	27800	35300	e29000	e31000	---	44200	236000	107000	132000	42300	30500	31300

31	24600	---	e28000	e36000	---	47100	---	107000	---	42100	26000	---

TOTAL	776400	1228400	818200	948000	1108500	1275900	4825400	5740000	3423200	2007700	1148300	1053700
MEAN	25050	40950	26390	30580	39590	41160	160800	185200	114100	64760	37040	35120
MAX	32200	51700	39500	36000	54800	53100	268000	246000	132000	132000	55700	46100
MIN	15500	24900	17000	26000	32000	31200	50300	107000	95600	35900	23800	25200
AC-FT	1540000	2437000	1623000	1880000	2199000	2531000	9571000	11390000	6790000	3982000	2278000	2090000
CFSM	.29	.48	.31	.36	.46	.48	1.88	2.16	1.33	.76	.43	.41
IN.	.34	.53	.36	.41	.48	.55	2.10	2.49	1.49	.87	.50	.46

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1874 - 2001, BY WATER YEAR (WY)
MEAN	40700	39280	27870	25810	28200	50590	90010	82340	69280	56060	37790	38000
MAX	203600	146800	73590	54100	65680	127500	175900	212400	182100	198900	113400	92380
(WY)	1882	1882	1882	1973	1966	1973	1997	1888	1892	1993	1993	1938
MIN	13490	13760	11120	11390	14000	17600	26040	23190	15420	14690	12460	13870
(WY)	1934	1934	1934	1890	1893	1934	1931	1977	1988	1988	1936	1933

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1874 - 2001
ANNUAL TOTAL	16899500		24353700
ANNUAL MEAN	46170		66720		48870
HIGHEST ANNUAL MEAN					94690	1882
LOWEST ANNUAL MEAN					18870	1934
HIGHEST DAILY MEAN	125000	Jun 15	268000	Apr 23	307000	Apr 28 1965
LOWEST DAILY MEAN	15500	Oct 20	15500	Oct 20	6500	Dec 25 1933
ANNUAL SEVEN-DAY MINIMUM	18800	Dec 7	18800	Dec 7	7430	Dec 24 1933
MAXIMUM PEAK FLOW			270000	Apr 23
MAXIMUM PEAK STAGE			23.62	Apr 24	24.65	Apr 28 1965
ANNUAL RUNOFF (AC-FT)	33520000		48310000		35400000
ANNUAL RUNOFF (CFSM)	.54		.78		.57
ANNUAL RUNOFF (INCHES)	7.34		10.58		7.76
10 PERCENT EXCEEDS	84500		152000		95000
50 PERCENT EXCEEDS	38200		39500		37500
90 PERCENT EXCEEDS	26000		26000		19000