Station list     Available data
LOWER MISSISSIPPI RIVER BASIN


07010000       MISSISSIPPI RIVER AT ST. LOUIS, MO



LOCATION.-- Lat 38°37'44", long 90°10'47", 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.
 

WATER TEMPERATURE: October 1951 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 sea level. 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.

REMARKS FOR CURRENT YEAR.--Records good.
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 103000  91500  102000  70700  222000  448000  267000  422000  344000  364000  184000  132000 
2 99500  82300  106000  72500  205000  423000  257000  424000  358000  350000  201000  117000 
3 90700  81300  102000  70700  182000  380000  250000  423000  395000  339000  190000  101000 
4 88700  84400  106000  71100  181000  332000  252000  421000  431000  334000  171000  99100 
5 116000  88100  105000  74700  166000  296000  280000  417000  477000  329000  166000  102000 
 
6 118000  97500  95400  73900  156000  283000  305000  415000  517000  333000  168000  98400 
7 111000  116000  85800  73000  151000  274000  310000  420000  546000  339000  162000  96400 
8 112000  107000  75000  74600  143000  262000  301000  430000  583000  330000  164000  96100 
9 98200  114000  70700  73800  154000  249000  295000  450000  608000  311000  156000  107000 
10 88000  122000  67900  72100  227000  234000  295000  472000  609000  292000  159000  97200 
 
11 84900  136000  69500  73700  288000  223000  310000  470000  605000  270000  151000  99300 
12 87400  143000  73600  71600  334000  215000  345000  462000  580000  256000  141000  109000 
13 87200  153000  61500  70300  322000  208000  372000  459000  541000  242000  131000  118000 
14 89000  142000  60700  79300  297000  197000  373000  470000  505000  225000  119000  117000 
15 90000  130000  61800  82100  274000  214000  371000  480000  473000  222000  93600  118000 
 
16 104000  131000  63900  96700  256000  257000  377000  482000  446000  215000  89200  118000 
17 109000  132000  72400  90400  244000  327000  383000  487000  433000  201000  86100  113000 
18 107000  128000  73700  91100  230000  396000  386000  495000  446000  189000  97700  98600 
19 99300  131000  73000  96900  217000  422000  388000  504000  458000  187000  98400  102000 
20 89700  136000  69900  98500  209000  415000  390000  510000  447000  181000  98100  98200 
 
21 82400  123000  68700  101000  201000  397000  392000  516000  423000  182000  95300  137000 
22 78600  123000  72100  106000  191000  377000  397000  506000  412000  181000  98800  181000 
23 82400  114000  77000  100000  180000  356000  399000  493000  440000  171000  98700  181000 
24 94400  106000  79900  101000  196000  343000  403000  478000  463000  178000  139000  166000 
25 93400  101000  76000  95300  300000  338000  411000  459000  467000  181000  144000  153000 
 
26 89200  105000  72800  89400  385000  336000  415000  440000  456000  175000  126000  141000 
27 86200  107000  72000  89200  430000  337000  415000  413000  443000  174000  114000  134000 
28 89300  102000  68800  83000  456000  329000  413000  387000  419000  189000  115000  139000 
29 90400  105000  72900  85000  ---  316000  413000  363000  395000  204000  120000  141000 
30 95900  103000  72400  154000  ---  296000  416000  345000  378000  191000  131000  134000 
 
31 99000  ---  70300  211000  ---  281000  ---  341000  ---  180000  136000  --- 

MEAN 95280 114500 77380 90080 242800 314900 352700 446900 469900 242400 133700 121500
MAX 118000 153000 106000 211000 456000 448000 416000 516000 609000 364000 201000 181000
MIN 78600 81300 60700 70300 143000 197000 250000 341000 344000 171000 86100 96100
IN. .16 .18 .13 .15 .36 .52 .56 .74 .75 .40 .22 .19


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 2001, BY WATER YEAR (WY)
MEAN 139400 144300 123900 115800 145900 231400 307200 293200 272300 223600 145800 137400
MAX 575300 359200 452400 307800 301400 521800 692500 588700 600600 808800 700200 531800
(WY) 1987 1986 1983 1973 1974 1973 1973 1995 1947 1993 1993 1993
MIN 44170 47920 42130 31340 41900 74550 110100 79500 70260 67130 43510 54640
(WY) 1940 1940 1938 1940 1940 1964 1934 1934 1934 1936 1936 1939

SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1933 - 2001
ANNUAL MEAN 134200      224600      190100     
HIGHEST ANNUAL MEAN 429700      1993
LOWEST ANNUAL MEAN 67700      1934
HIGHEST DAILY MEAN 385000          Jun 29 609000          Jun 10 1050000      Aug 1 1993
LOWEST DAILY MEAN 60700          Dec 14 60700          Dec 14 27800      Dec 12 1937
ANNUAL SEVEN-DAY MINIMUM 65600          Dec 10 65600          Dec 10 28200      Jan 18 1940
MAXIMUM PEAK FLOW 612000          Jun 10 1080000      Aug 1 1993
MAXIMUM PEAK STAGE 34.79     Jun 10 49.58 Aug 1 1993
INSTANTANEOUS LOW FLOW 60000          Dec 14 27800      Dec 12 1937
ANNUAL RUNOFF (INCHES) 2.62 4.38 3.71
10 PERCENT EXCEEDS 240000      446000      371000     
50 PERCENT EXCEEDS 114000      171000      153000     
90 PERCENT EXCEEDS 77400      78000      69200     


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data