Station list     Available data
UPPER MISSISSIPPI RIVER BASIN


05420500       MISSISSIPPI RIVER AT CLINTON, IA



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 Septemter 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 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 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 36200  34800  33200  34800  e27000  61900  46200  55700  57400  100000  45000  37400 
2 33800  35000  33900  35200  e28000  68000  46400  50800  76500  96700  43900  35100 
3 33600  35400  35400  35500  e28000  72100  46600  44500  87300  93600  40600  29500 
4 34300  34800  36100  37100  e27000  76800  45400  39900  93300  84000  36300  24500 
5 34700  33100  36900  32900  e30000  78600  43400  38300  101000  72000  35300  23700 
 
6 34200  31500  35700  29600  e30000  81200  40900  36800  104000  67100  34900  27700 
7 36000  31900  34200  30700  e30000  74900  37400  35600  105000  61700  37200  30700 
8 35900  33600  33400  33200  e30000  74700  38700  35500  107000  55100  38500  34000 
9 35600  35100  33200  35300  e30500  74400  40300  35500  108000  51800  38100  33500 
10 36500  34400  33100  36100  e30500  72400  39400  36600  110000  51200  35700  32000 
 
11 37000  35300  32200  34900  e31000  69500  39200  36400  113000  e60000  29300  33900 
12 37900  35900  32500  30900  e31000  64400  36400  37900  117000  68200  28200  36300 
13 36600  36000  33200  29800  e31000  60900  36200  42900  120000  75500  29300  37200 
14 36900  36000  33700  27900  e33000  59000  34100  42100  124000  87000  29400  37100 
15 34500  36200  34000  26000  e33000  57500  34500  41600  125000  91200  33700  44300 
 
16 32000  33300  32600  25400  e33000  56900  35800  41100  120000  97700  37100  48800 
17 32000  31000  27500  26400  e33000  57200  39300  39800  109000  97300  37400  51100 
18 32100  28800  25300  26500  e32500  56300  39700  41700  94500  97000  41100  51300 
19 32300  29600  25500  26500  e32500  56000  37300  49600  86400  97900  41600  46100 
20 32300  28800  25500  29500  e32000  55500  42000  58600  86200  97700  42000  39200 
 
21 32500  28500  e20000  e27000  31900  51400  48000  69800  85800  91900  47500  33000 
22 32400  30900  e17500  e27000  30400  48500  48700  73300  82600  81700  52700  29400 
23 32200  32800  e18000  e27000  29000  47300  48800  72800  77500  72500  53900  29800 
24 32500  36600  e18500  e27000  32300  43200  48700  71000  83500  66400  48300  35600 
25 32700  40700  e19000  e27000  43800  42500  51200  68000  87600  62100  39400  32800 
 
26 34500  39000  e18500  e27000  59900  41700  54300  65500  92900  55200  34500  28500 
27 35700  36700  e20000  e27000  64700  40200  62900  65600  93100  42600  34000  26600 
28 35600  36500  e21000  e27000  58800  41200  63400  65400  97200  40400  32900  28000 
29 35800  36500  e23000  e27000  57800  43800  63500  60400  99300  40000  32900  27800 
30 35000  35100  e31000  e27000  ---  43700  61800  56100  100000  41700  37300  27700 
 
31 34300  ---  36000  e27000  ---  45900  ---  53000  ---  44100  37800  --- 

TOTAL 1067600 1023800 889600 921200 1021600 1817600 1350500 1561800 2944100 2241300 1185800 1032600
MEAN 34440 34130 28700 29720 35230 58630 45020 50380 98140 72300 38250 34420
MAX 37900 40700 36900 37100 64700 81200 63500 73300 125000 100000 53900 51300
MIN 32000 28500 17500 25400 27000 40200 34100 35500 57400 40000 28200 23700
AC-FT 2118000 2031000 1765000 1827000 2026000 3605000 2679000 3098000 5840000 4446000 2352000 2048000
CFSM .40 .40 .34 .35 .41 .68 .53 .59 1.15 .84 .45 .40
IN. .46 .44 .39 .40 .44 .79 .59 .68 1.28 .97 .52 .45

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1874 - 2000, BY WATER YEAR (WY)
MEAN 40830 39270 27880 25780 28110 50670 89460 81530 68930 55990 37790 38030
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 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1874 - 2000
ANNUAL TOTAL 21380500      17057500     
ANNUAL MEAN 58580      46610      48730     
HIGHEST ANNUAL MEAN 94690      1882
LOWEST ANNUAL MEAN 18870      1934
HIGHEST DAILY MEAN 144000          May 19 125000          Jun 15 307000      Apr 28 1965
LOWEST DAILY MEAN 17500          Dec 22 17500          Dec 22a 6500      Dec 25 1933
ANNUAL SEVEN-DAY MINIMUM 18800          Dec 21 18800          Dec 21 7430      Dec 24 1933
INSTANTANEOUS PEAK FLOW 126000          Jun 14b
INSTANTANEOUS PEAK STAGE 15.36     Jun 15 24.65 Apr 28 1965
ANNUAL RUNOFF (AC-FT) 42410000      33830000      35300000     
ANNUAL RUNOFF (CFSM) .68 .54 .57
ANNUAL RUNOFF (INCHES) 9.29 7.41 7.73
10 PERCENT EXCEEDS 111000      84500      94400     
50 PERCENT EXCEEDS 45600      36600      37500     
90 PERCENT EXCEEDS 32300      27800      19000     
a - Ice affected.
b - Also June 15.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data